Expert TA

Automated partial credit grading of complex equations such as those found in physics!

Expert TA enables Professors and Teaching Assistants to focus their time on educating your students. Leave the homework grading to the computer, complete with partial credit grading of the most complex of math and physics problems.

See How it Works

Latest News:
Expert TA assembles a team of professors to author problems... Meet our Authors

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Demonstration of online physics homework with partial credit grading

  • Textbook independent library of original problems more...

In an effort to combat the fact that students have access to many textbook answers online, we have assembled an outstanding team of problem authors who continuously add fresh unique material to our system. Using The Expert TA can also save students hundreds of dollars on textbook expenses by allowing you to choose any textbook, including older editions for use with our online home- work system.

  • Human-like partial credit grading more...

Because your students deserve better than just right or wrong. The Expert TA is built with a sophisticated math engine that is able to grade equations in detail, similar to how you or your TA would, by identifying mistakes within equations, assigning partial credit and providing specific feedback about the error that was made and the points associated.

  • Analyzes students' multi-step answers more...

Solving physics problems involves numerous steps such as drawing free body diagrams, and applying equations to solve for numeric answers. The Expert TA's problems are all multi-step, guiding the students through the problem solving process. By requiring students to enter equations, rather than just numeric answers, they build problem solving skills while allowing you to see where they've gone wrong during the process.

  • Identifies specific mistakes and provides specific feedback more...

Detailed feedback is essential to a student's mastery of the material. With equations, The Expert TA gives feedback down to the specific term that is incorrect and can even give feedback on unit errors, mathematical mistakes and multiple choice questions.

  • Available 24/7 from any mobile device more...

The Expert TA works on any PC, Mac or mobile device. Anytime, anywhere student's have access to complete their homework assignments or can complete practice problems and receive extra help outside of office hours with our Tutorial Mode.

Questions? Contact Us
Phone: +1 877-572-0734
Email: main@theexpertta.com


The Expert TA in the Journal Record

Oklahoma State University professor Jeremy Morton has a partial credit grading solution for a yes or no market... Read More

The Expert TA paving new paths in Introductory Physics classes

Press release about intro into market and availability of product direct to students and colleges that are in beta now... Read More

More News

The Expert TA system was designed by a Professor for Professors.

Dr. Jeremy Morton began work on the system in 2004 with a math engine that could interpret and parse complex mathematical formulas. To make it easier to enter formulas, he created a unique input palate with simplified entries and logical shortcuts. In all he spent four years on the program and it served as his doctoral dissertation at North Carolina State University.

About our Team

Latest News about The Expert TA

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  • Hs 1 Big

    Jeremy Morton

    President And CEO

    Dr. Morton is the CEO and Founder of Expert TA and a faculty member in the department of Mechanical and Aerospace Engineering at Oklahoma State University.

    He teaches a broad range of classes including Capstone Design, Heat Transfer, second level Thermodynamics, and Computer Programming for Engineers.  He has been heavily involved in curriculum reform as well as course development. 

    During his first two years at Oklahoma State Dr. Morton worked with their New Product Development Center as a Principle Investigator, Designer and Advisor.  Additionally he has served as consultant to private sector companies, specifically related to development of technical software.

    In late 2008 he began the formal business development of Expert TA, acquired first round capital and launched the company as an LLC in late 2009.  He has served as President and CEO since that time. Dr. Morton has ten year’s experience as a professor. He has a deep, but growing, understanding of how technology is used in the classroom.  One of his goals, and part of Expert TA’s mission, is to work with leading experts in education research to better understand how students learn, and to develop tools that aid in this process.

  • Hs 1 Big

    Daniel Vail

    Chief Technical Advisor

    As Chief Technology Advisor, Daniel has over two decades of professional experience in the IT industry from low level hardware to complex software.

    His experience ranges from hardware and software engineering to team management with companies such as TanData, The Williams Companies, FW Murphy, Occidental Petroleum and Interactive Collegiate Solutions. He has served as an analyst, software developer, DBA and chief architect on projects from real time telemetry to critical alarming systems and leading edge SAAS architecture.

    Daniel attended both Southwest Missouri State University and Langston University while working towards his BS in Computer Science. Daniel has assisted in teaching advanced programming language courses at Tulsa Community College, per faculty request. He is currently seeking certification as Microsoft Certified Architect. He has been on the Deans Honor roll and received an Honors Diploma. He actively participates in the Dot Net users group and Java users Group.

    Daniel is happily married to Lisa they are currently working on the adoption of a child. They enjoy learning new technology, painting, drawing, bowling, biking, and target practice. They are both actively involved in their local house of worship where they participate in media, drama, and assisted with both the senior and the youth group.

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    Tom McCabe

    Chief Financial Advisor

    Tom McCabe has over 25 years experience in public and privately held companies with corporate leadership roles including President, CFO, General Manager, Senior Vice President, Vice President of Administration, Vice President Information Technology, Manufacturing Manager and Controller.

    He has experience in industries including Commercial Construction, Energy Service / Construction, Automotive Parts Manufacture (OEM and Aftermarket), Fitness, Restaurant and Insurance / Risk Management. He has experience in administrative support system implementation and business process improvement, acquisition & divestitures, ERP system implementation and implementation of LEAN/Continuous Improvement concepts. Tom’s educational background includes a BS in Math/Business from Wake Forest University and an MBA from the University of Florida.

    Tom currently provides financial leadership to early stage and startup company as well as project consulting through his own company, TEM Associates in Tulsa, Oklahoma. He is also a Senior Partner with Business Synergetics International, a firm focused on providing business-to-business customer satisfaction surveys and improvement solutions as well as supply chain consulting, based in Nashville, Tennessee.

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    Michelle Witt

    Director of Business Development

    Ms. Michelle Witt holds a B.S. in Mechanical Engineering, an M.S. in Engineering Management from Rose-Hulman, and an M.B.A. from The University of Tulsa (TU).

    She has engineering, marketing, and management experience with companies ranging from small businesses to Fortune 500 companies such as General Electric and Weyerhaeuser Corporation. Ms. Witt also has entrepreneurial experience with a venture capital company and startup commercialization efforts such as negotiating license agreements, delivering investor presentations, business strategy and planning, marketing and branding and other development areas. Ms. Witt has helped Tulsa startups raise $5.5MM in development dollars. She has also taught classes in entrepreneurship at the undergraduate and graduate level at The University of Tulsa.

    In addition to serving on the board of Women in Transition (an organization helping women return to college), Ms. Witt has earned many awards and recognitions including 2008 Tulsa Tulsey Young Entrepreneur Nominee, 2008 Governor’s Cup $10,000 winner, 2010 Entrepreneurial Spirit award finalist, 2010 Oklahoma’s 40 Achievers Under 40 Award and 2011 Tulsa Woman of the Year Nominee. At Expert TA, Ms. Witt will be joining in the sales and marketing effort.

    Ms. Witt enjoys traveling, experiencing extreme activities (zip-lining, hang gliding, etc.), volunteering, cooking, building things and playing with her fun-loving basset hound.

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    Bucky Cordray

    Director of Sales

    As Director of Sales, Bucky Cordray has over a decade of Business Development and Account Management experience.

    With a B.S. in Technology from Pittsburg State University, Bucky has focused his professional career in the Manufacturing and Construction industry. His long successful track record in the SAAS industry was built by truly understanding the customer needs and working with them to find the best possible solution. His due diligence in overseeing and ensuring the customer experience from beginning of the sale, to implementation, and years down the road of continued support have lead him to great success with Fortune 500 companies to small businesses.

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    Jessica Seidel

    Director of Marketing

    Jessica Seidel joined the Expert TA team as the Director of Marketing with 10 years of experience managing marketing initiatives for businesses ranging from small startups to large corporations with multimillion dollar advertising budgets.

    Industry experiences include recreational retail environments, software startups and service industries such as accounting and consulting firms. Her recent marketing campaigns have been focused in the Digital Marketing space focusing on Search Engine Optimization, Social Media Management, Email Marketing and Search Engine Marketing with Pay-Per-Click. Past experience includes the budgeting and orchestration of traditional media buys on platforms such as TV, print and radio. With a base education in Accounting, Jessica is specialized in analyzing and executing marketing budgets to perform with an optimized return on investment.

    When Jessica is not calculating Click Thru Rates and ROI she enjoys the beauty that living in the Pacific Northwest provides.

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    Larry Hoberock

    Chief Academic Advisor

    Dr. Hoberock's 44 years of engineering experience have been divided between work in government (US Army Ballistic Research Labs); industry (Rocketdyne, Autonetics, Hamilton-Standard, Aero, Inc, Amoco Production Co. and Derrick Mfg. Corp.) and universities (Oklahoma State University and the U. of Texas-Austin).

    He currently heads an academic School with 25 faculty members and more than 1000 undergraduate and graduate students in both Tulsa and Stillwater, Oklahoma, that graduates BS, MS, and PhD students in both aerospace and mechanical engineering. While he was on the faculty at the University of Texas-Austin, he pioneered the introduction of the Personalized System of Instruction (the Keller Plan) to the teaching of courses in mechanical engineering. He published extensively about this method, served on the editorial board of a journal devoted to this new technique, and delivered numerous seminars and workshops in the US and abroad on this highly effective system of instruction. His technical specialties are in applied automation; applied machine vision; modeling and simulation of dynamic systems; and automatic control system design. He has published 70 refereed journal and conference articles, has supervised 35 graduate student dissertations and theses, and secured $25 million for 44 research projects from numerous industrial firms, private foundations, federal agencies, and state agencies. As Associate Director of the Oklahoma Center for Integrated Design and Manufacturing, a $12.5 MM, 5-year State Center of Excellence, he coordinated all of the research at OSU in a 3-university consortium. As Co-Director of the Oklahoma Applications Engineer Program, he directs a $ 900,000 per year program using engineers throughout Oklahoma to assist small manufacturers with engineering problems. As Founder and Director of the OSU New Product Development Center, he directed a $750,000 per year program to develop and help commercialize a wide variety of new products for small Oklahoma manufacturing firms. He remains active in industrial consulting.

    Dr. Hoberock completed a 3-year term as Vice President of the Systems and Design Technical Group of the American Society of Mechanical Engineers, which serves the technical needs of approximately 30,000 mechanical engineers. He completed a five-year term on the Executive Committee of the Dynamics Systems and Control Division of the American Society of Mechanical Engineers (ASME) and was Chairman of the Division in 1991 and Chairman of its Honors Committee 1998-99. During 1997-98, he was Chair of the ASME National M.E. Departments Heads Committee, and from 1993-1995 he served as Chair of the ASME Region X M.E. Department Heads Committee. He has been a Technical Educator Review Chairman for the Society of Petroleum Engineers, an associate editor for the ASME Transactions Journal of Dynamic Systems and Control and an associate editor of SPE Drilling Engineering. He has served on numerous other national and state advisory committees.

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    Lee Younts

    Sales Advisor and Member of the Board of Directors

    Lee Younts brings over 10 years of experience to Expert TA in his role as Sales Advisor and holds a seat on the Board of Directors.

    With a B.S. in Mechanical Engineering from North Carolina State University, Lee has focused his professional career in the utility and energy sectors. He has held leadership roles in Sales and Business Development at Progress Energy, a fortune 500 energy company, and Utility Service Agency where he is integral in the growth and development of the company.

  • Hs 1 Big

    Patrick Busby

    Legal Advisor and Business Development

    Mr. Busby attended Spring Hill College where he graduated Cum Laude in Finance/Economics.

    He subsequently attended Samford University where in 3 years, he completed a joint program to earn a Juris Doctorate and Masters of Business Administration. While attending law school, Mr. Busby clerked for the Louisiana Supreme Court and a Birmingham-based law firm.

    Mr. Busby is a member of both the Alabama and Oklahoma Bar Associations. Over the last 4 years, he has worked as an attorney in a Tulsa-based law firm as a member of its business litigation section, regularly practicing in Oklahoma state and federal courts. Mr. Busby has further been involved with the Tulsa Young Professionals organization and for the past year, served as the TYPROS Board Member for the American Heart Association.

  • Hs 1 Big

    Carter Dewey

    Director of Sales

    Carter Dewey has served as Sales Advisor at ExpertTA Since June 2011.

    Prior to joining Expert TA, Mr. Dewey served as a Global Account Director for AT&T, with responsibility for some of AT&T’s largest enterprise customers. Carter was tasked with driving complex application sales across the entire sales process of define, design, deploy, and support. Carter has a highly successful track record in direct selling and sales management as well as channel development and management.

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  • Ronald Bieniek, PhD.

    Ronald Bieniek, PhD.

    Professor, Department of Phyiscs - Missouri University of Science and Technology

    Expert TA: Director of Physics Content Development - Problem Czar

    Prof. Ronald J. Bieniek is founding Director of New Faculty Programs and the Learning Enhancement Across Disciplines Program of student academic assistance and development at Missouri University of Science and Technology (formerly the University of Missouri-Rolla). His scientific research is in the theory of atomic and molecular collision processes.  In recent years, he has concentrated on educational and programmatic issues, focusing on methods to improve student and faculty success and satisfaction.

    Bieniek received a Bachelor of Science degree in physics from the University of California-Riverside (1970).  After a year of graduate study at MIT, he transferred to Harvard, where he earned a Master of Arts in history of science (1973) and Ph.D. in physics (1975).Bieniek strives to provide scientists and non-scientists with an understanding of the cultural interactions of science within the context of the history of ideas. He has been a Rufus and Sofie Paine Lecturer in Religion at University of Missouri-Columbia.  He has served on several National Science Foundation panels and on the American Physical Society's national Committee on Education.  Bieniek has won three campus Outstanding Teaching Awards, many college Teaching Excellence Awards, and been appointed Dean's Teaching Scholar for his educational impact and leadership.

    B.S. in physics (UC-Riverside), M.A. in history of science (Harvard, 1973), Ph.D. in physics (Harvard, 1975).

  • Simon Capstick, PhD.

    Simon Capstick, PhD.

    Professor, Department of Physics - Florida State University

    Expert TA: Problem Author

    Dr. Capstick received his Ph.D. from the University of Toronto in 1986. Joined the FSU faculty in 1993 after post-doctoral research appointments at Oxford University, Carnegie Mellon University, and at Jefferson Lab, a nuclear physics lab in Virginia.

    His research focuses on properties of excited states of baryons like the proton and neutron, and their strong and electromagnetic interactions. His recent work has been designed to complement the baryon physics experimental program at Jefferson Lab.

  • Stuart Loch, PhD.

    Stuart Loch, PhD.

    Associate Professor, Department of Physics - Auburn University

    Expert TA: Problem Author

    Dr Loch is currently an associate professor at Auburn University.  He

    has a BSc in Physics and a PhD in Physics, both from the University of

    Strathclyde in Scotland.  He has taught introductory physics courses at

    Auburn, and has a strong interest using innovative teaching techniques

    in the classroom.  His research interests are in atomic physics, with

    application in astrophysics and nuclear fusion. 

  • Chuck Hasty, PhD.

    Charles E. Hasty PhD.

    Teaching Associate, Department of Physics - Oklahoma State University

    Expert TA: Problem Author

    After graduating with a Physics M.S. in 1993, Mr. Hasty was a physics and mathematics faculty member at two Oklahoma universities. He returned to graduate school at Oklahoma State University (OSU) and obtained a Physics Ph.D. in 2005. Dr. Hasty is currently a member of the OSU physics faculty, where he typically instructs freshman physics courses, an inquiry-based physics course for education majors, and provides departmental teaching assistant training. A longtime technology and teaching enthusiast, Dr. Hasty has taught many distance education courses, created a computer program to teach science process using Socratic user interactions, participated in a five-year US Department of Education Star Schools grant as a content specialist and developer, created and instructed problem-solving seminars supporting engineering audiences, and has instructed courses for an Upward Bound program. Dr. Hasty is interested in creating and enhancing effective University-level physics instruction and sees a bright future for computers and technology supporting educational interactions.

  • Alex Burr, PhD.

    Alex Burr, PhD.

    Professor Emeritus, Department of Physics - New Mexico State University

    Expert TA: Problem Author

    Dr. Burr received his BS from Jamestown College, MA from the University of Edinburgh and his PhD from Johns Hopkins. He has served as a consultant with the International Atomic Energy Agency, Educational Testing Services, National Science Foundation, and American Association of Physics Teachers for over 15 years. He has instructed physics students for over 50 years and has taught in several types of institutions of higher education across four continents. Dr. Burr has wrote, edited and graded various physics tests for a variety of organizations.

  • Michael Ottinger, PhD.

    Michael Ottinger, PhD.

    Missouri Western State University, Professor of Physics and Chair of the Computer Science, Mathematics, and Physics Department

    Expert TA: Problem Author

    Dr. Michael B. Ottinger earned a B.S. (1991) and M.S. (1993) in Physics from Brigham Young University in Provo, Utah. He then earned a Ph.D. (1997) in Physics from The University of Texas at Austin. His primary fields of research are in Single Species Plasma Physics and Space-charge Effects in Particle Accelerator Beams. Upon receiving his Ph.D. Michael taught physics for three years at Truman State University in Kirksville, Missouri. Michael now teaches physics and mathematics at Missouri Western State University, where he is currently serving as Chair of the Computer Science, Mathematics, and Physics Department. He is the State Director of the Missouri Junior Academy of Science, which sponsors a statewide scientific research competition for Middle School and High School students. Before writing problems for Expert TA, Michael has authored instructor solutions manuals, co-authored an instructor resource guide, and worked as a problem solver and accuracy reviewer for several textbooks. Michael is married and has three children.

  • Jeffrey Groff, PhD.

    Jeffrey Groff, PhD.

    Assistant Professor of Physics, Shepherd University, Institute of Environmental and Physical Sciences

    Expert TA: Problem Author

    Professor Jeffrey R. Groff received his Ph.D. in Applied Science with a focus in Computational Biology and Theoretical Biophysics from the College of William and Mary in 2008. He joined the faculty at Shepherd University as an Assistant Professor of Physics in 2009 after working for a year as a Visiting Assistant Professor of Physics at Gettysburg College. Recently, he has actively pursued ways to introduce biological physics and biophysics experiments and activities into his undergraduate introductory physics laboratories.

  • Agnes Vojta, PhD.

    Agnes Vojta, PhD.

    Lecturer, Department of Physics, Missouri University of Science and Technology

    Expert TA: Problem Author

    Agnes Vojta received her PhD from the Technical University of Dresden, Germany, in 1994. After postdoctoral research in materials science at UC Santa Barbara, she joined the faculty of Missouri University of Science and Technology (then known as University of Missouri-Rolla) in 2002. She is teaching various algebra and calculus based introductory physics courses.

  • He Ning, PhD.

    He Ning, PhD.

    Independent Consultant

    Expert TA: Problem Author

    Dr. Ning received her Ph.D. in physics from the University of Minnesota in 2007. As a graduate student, she worked as a teaching assistant for 10 semesters, teaching undergraduate students of various majors, races, and backgrounds. She has lead undergraduate students in labs and recitations, written homework problems and tutored students in office hours. In the process, she gained numerous valuable insights of how to design problems that can help students understand the abstract physics concepts better. Dr. Ning's research interest is in astrophysics. Her main work focused on the heavy element nucleosynthesis in shocked carbon-oxygen layers and hydrogen envelopes of O-Ne-Mg core-collapse supernovae, which may explain the sources of the neurons in the universe.

  • Brian Bucklein, PhD.

    Brian Bucklein, PhD.

    Assistant Professor of Physics, Department of Computer Science, Mathematics, and Physics, Missouri Western State University

    Expert TA: Problem Author

    Dr. Bucklein received his BS in Physics and BA in Mathematics from East Carolina University. His PhD in Physics and Astronomy is from Brigham Young University. Dr. Bucklein is currently an Assistant Professor of Physics at Missouri Western State University in St. Joseph, MO. He teaches algebra-based physics, conceptual physics, and astronomy. He is very interested in improving the quality of science education in our universities, and is a member of the Missouri chapter of the American Association of Physics Teachers and the Missouri Academy of Science. His research areas are varied, ranging from theoretical astrophysics to the physics of martial arts. He is an Eagle Scout and serves as the Scoutmaster for a local Boy Scout Troop.

  • Tom Colbert, PhD.

    Tom Colbert, PhD.

    Professor, Department of Chemistry and Physics, Augusta State University

    Expert TA: Problem Author

    Dr. Colbert completed his undergraduate degree at Kenyon College and both a M.S. and PhD in Physics at Lehigh University. He is currently Professor of Physics at Augusta State University in Augusta, GA. Dr. Colbert has over 20 years of experience teaching physics (introductory physics, electromagnetism, optics, quantum physics and mathematical methods) and has been extremely involved in the physics community through organizations such as the American Association of Physics Teachers and the American Physical Society. He has been on numerous committees to determine curriculum and improve physics education. Dr. Colbert has also been a reviewer for the National Science Foundation as well as an author for the PRAXIS test exam, GRE, PHYSLETS and many other publications. His research interests include atomic physics, as well as physics education and technology.

Privacy Agreement

Expert TA provides educational software that performs online grading of tutorials and homework where both student grades and information are involved. Our company understands the sensitivity of this information and we are committed to protecting the privacy of its users. This privacy statement provides an overview of the terms and conditions surrounding the use of our system.

Expert TA is a secure site. All actions and transmissions including the login process and completion of material to be graded are encrypted using SSL. You will notice the url.s throughout Expert TA.s website are "https" rather than standard unsecure/unencrypted "http" connections. Security certificates issued by COMODO High-Assurance Secure Sever can be viewed for each page of our web application.

Expert TA will not in any way violate the privacy rights of any student/user as defined in the Family Educational Rights and Privacy Act (FERPA). This act (20 U.S.C. § 1232g; 34 CFR Part 99) is a Federal law that protects the privacy of student education records. The privacy act can be read in full at: http://www2.ed.gov/policy/gen/guid/fpco/ferpa/index.html

Expert TA will not sell, or in any way disclose, any user information (student, instructor, institution, or otherwise) to any third party. Expert TA will not use the provided information in any way, email or otherwise, for marketing purposes. The singular purpose of this information in the system is for educational and instructional use as is associated with the specific class.

For Expert TA to ultimately produce a grade-sheet view where students. grades are presented to an instructor, this information (student.s names and emails) must be stored in our database. Expert TA stores information about student grades in such a way that no unauthorized users can access the data. Furthermore each student is assigned a GUID or Globally Unique Identifier, grades are stored with this unique number rather than any recognizable information such as name or email. Expert TA administrators or programmers may analyze data, for such purposes as system performance, but will never see student information and grades together. Expert TA employees will never "join" this data where student names and grades are viewable together without express written consent from the course instructor; and will only do so to troubleshoot a problem or address a question posed by the instructor. The only individuals who will see student grades and identifiable student information will be the instructor for the course or any individual authorized by the instructor, such as a teaching assistant. Students will be able to view their individual grades only.

Initially an instructor account is created by Expert TA. The instructor can then create classes and register students for these classes by using a delimited list of emails for the students in each class. The system generates a temporary password for each student which the instructor will provide. The student should change thier password after logging in, to ensure no unauthorized access occurs.


Jeremy Morton, Ph. D. - CEO and Founder
Expert TA, LLC

Our Products

For the Professor

The Expert TA provides partial credit grading for the most dynamic type of homework problems. Freeing up the time of Professors and Teaching Assistants to focus on elevating the level of student leaning, instead of grading complex physics and math homework.

  • Consistent and accurate grading on multi-part and multi-credit equations
  • Identification of grading trends highlights mastery of student learning
  • Create assignments with an easy three step process in minutes
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For the Student

The Tutorial Mode of Expert TA is designed to simulate guidance a student might receive during an office hours tutoring session giving them the immediate feedback they need with the freedom of completing their homework, anytime of day.

  • Accessible hints to guide the student through the problem solving process
  • Provides students an online leaning environment similar to choosing “like kind” problems from the back of textbooks
  • Test Custom equation entry palate reinforces equation solving concepts
Learn More

Homework Mode with
Full Class Management Suite

Create homework assignments in an easy three-step process

Physics Online Homework System
Homework Mode Image 1

Select the book, select the chapter, select the problems. Using the drop down menus make creating homework assignments as easy as choosing problems out of the back of the book.

Once the assignment due date has passed both the student and the Professor receive a grade report. This grade report shows a term by term breakdown where mistakes are identified, deductions are made and feedback is provided. The deductions include the ability to award partial credit for incorrectly solved portions of the equations, not simply with a right or a wrong. This is the same process used by Teaching Assistants and Instructors while grading Physics homework with accuracy and consistency.

Expert TA also allows for exporting grade information in order to integrate with the Professors other software platforms with ease. Reviewing the Class Management suite points out trends of subject mastery for the individual problems and assignments.

Homework Mode Image 2

Tutorial Mode

Students gain true mastery of problem solving techniques

Tutorial Mode

Using Tutorial Mode, students can select different problems to test their ability and gain insight into solution techniques. Errors are pointed out specifically, and corrections are noted. If the student is lost as to the next step, a HINT button guides the student with problem solving feedback.

Original problem materials cover the fundamental lessons in an introductory Physics course. In each tutorial a problem image and problem statement are provided to the student.

As the student completes each step of the complex equation they are provided with an indicator that tells them which part is incorrect and provides detailed specific feedback related to the mistake made.

This process emulates the way that professors help students during office hours. First giving the student hints to help solve the problem and then providing feedback when mistakes are made.

Tutorial Mode Image 2

The student is also provided with a custom built equation entry palette to help them solve the complex equations with all operators and variables required to complete each step. Operators enable and disable allowing input of only valid equations, a feature which helps eliminate careless errors.

If they have trouble getting started they can access hints to guide them to the next solving step.

Problem Library Table of Contents

Our vast problem library consists of all originally written material for Physics I & Physics II classes and can be used in conjunction with any Physics textbook. Our library includes Algebra based, Calculus based and Conceptual Physics type problems. With a team of problem authors constantly producing new material our problem library is always growing!

Units and Physical Quantities
1.1 - Fundamental Elements
1.2 - Density
1.3 - Dimensional Analysis
1.4 - Unit Conversions
1.5 - Significant Figures
2.1 - Coordinate Systems
2.2 - Vector and Scalar Quantities
2.3 - Vector Properties
2.4 - Vector Components and Unit Vectors
1D Motion
3.1 - Displacement, Velocity and Speed
3.2 - Instantaneous Velocity and Speed
3.3 - Acceleration
3.4 - Motion Diagrams
3.5 - One-Dimensional Motion with Constant Acceleration
3.6 - Objects in Free Fall
2D Motion
4.1 - Displacement, velocity and Acceleration Vectors
4.2 - Two-Dimensional Motion and Constant Acceleration
4.3 - Projection Motion
4.4 - Uniform Circular Motion
4.5 - Tangential and Radial Acceleration
4.6 - Relative Motion
Newton's Laws
5.1 - Newton's First Law and Inertial Frames
5.2 - Mass
5.3 - Newton's Second Law
5.4 - Gravity and Weight
5.5 - Newton's Third Law
5.6 - Frictional Forces
5.7 - Application of Newton's Laws
Circular Motion
6.1 - Newton's Second Law Applied to Uniform Circular Motion
6.2 - Nonuniform Circular Motion
Work and Kinetic Energy
7.1 - Work Done by a Constant Force
7.2 - The Scalar Product of Two Vectors
7.3 - Work Done by a Varying Force
7.4 - Kinetic Energy and the Work-Kinetic Energy Theorem
7.5 - Power
Potential Energy and Energy Conservation
8.1 - Potential Energy
8.2 - Conservative and Nonconservative Forces
8.3 - Conservative Forces and Potential Energy
8.4 - Conservation of Energy
8.5 - Work Done by Nonconservative Forces
8.6 - The Principal of Work-Energy
Momentum, Impulse and Collisions
9.1 - Conservation of Linear Momentum
9.2 - Impulse and Momentum
9.3 - Collisions
9.4 - Elastic and Inelastic Collisions in One Dimension
9.5 - Two-Dimensional Collisions
9.6 - The Center of Mass
9.7 - Motion of System of Particles
Rotation of Rigid Objects
10.1 - Angular Displacement, Velocity and Acceleration
10.2 - Rotational Kinematics
10.3 - Angular and Linear Quantities
10.4 - Rotational Energy
10.5 - Calculation of Moments of Inertia
10.6 - Torque
10.7 - Torque and Angular Acceleration
10.8 - Work, Power and Energy in Rotational Motion
Rotational Motion Dynamics
11.1 - Rolling Motion of a Rigid Object
11.2 - The Vector Product and Torque
11.3 - Angular Momentum of a Particle
11.4 - Angular Momentum of a Rotating Rigid Object
11.5 - Conservation of Angular Momentum
Equilibrium and Elasticity
12.1 - The Conditions for Equilibrium
12.2 - More on the Center of Gravity
12.3 - Examples of Rigid Objects in Static Equilibrium
12.4 - Elastic Properties of Solids
Periodic Motion
13.1 - Simple Harmonic Motion
13.2 - The Block/Spring System Revisited
13.3 - Energy of the Simple Harmonic Oscillator
13.4 - The Pendulum
13.5 - Comparing Simple Harmonic Motion with Uniform Circular Motion
14.1 - Newton's Law of Universal Gravitation
14.2 - Measuring the Gravitational Constant
14.3 - Free-Fall Acceleration and the Gravitational Force
14.4 - Kepler's Laws
14.5 - The Law of Gravity and the Motion of Planets
14.6 - The Gravitational Field
14.7 - Gravitational Potential Energy
14.8 - Energy Considerations in Planetary and Satellite Motion
Fluid Mechanics
15.1 - Pressure
15.2 - Variation of Pressure with Depth
15.3 - Pressure Measurements
15.4 - Buoyant Forces and Archimedes' Principle
15.5 - Fluid Dynamics
15.6 - Streamlines and the Equation of Continuity
15.7 - Bernoulli's Equation
Mechanical Waves
16.1 - Basic Variables of Wave Motion
16.2 - Direction of Particle Displacement
16.3 - One-Dimensional Traveling Waves
16.4 - Superposition and Interference
16.5 - The Speed of Waves on Strings
16.6 - Reflection and Transmission
16.7 - Sinusoidal Waves
16.8 - Rate of Energy Transfer by Sinusoidal Waves
Sound Waves
17.1 - Speed of Sound Waves
17.2 - Periodic Sound Waves
17.3 - Intensity of Periodic Sound Waves
17.4 - Spherical and Plane Waves
17.5 - The Doppler Effect
Superposition and Standing Waves
18.1 - Superposition and Interference of Sinusoidal Waves
18.2 - Standing Waves
18.3 - Resonance
18.4 - Standing Waves in Air Columns
18.5 - Beats: Interference in Time
19.1 - Temperature and the Zeroth Law of Thermodynamics
19.2 - Thermometers and Temperature Scales
19.3 - The Constant-Volume Gas Thermometer and the Kelvin Scale
19.4 - Thermal Expansion of Solids and Liquids
19.5 - Macroscopic Description of an Ideal Gas
Heat and the First Law of Thermodynamics
20.1 - Heat and Internal Energy
20.2 - Heat Capacity and Specific Heat
20.3 - Latent Heat
20.4 - Work and Heat in Thermodynamic Processes
20.5 - The First Law of Thermodynamics
20.6 - Some Applications of the First Law of Thermodynamics
20.7 - Energy Transfer Mechanisms
The Second Law of Thermodynamics and Applications
21.1 - Heat Engines and the Second Law of Thermodynamics
21.2 - Reversible and Irreversible Processes
21.3 - The Carnot Engine
21.4 - The Absolute Temperature Scale
21.5 - The Gasoline Engine
21.6 - Heat Pumps and Refrigerators
21.7 - Entropy
21.8 - Entropy Changes in Irreversible Processes
21.9 - (Optional) Entropy of a Microscopic Scale
21.10 - Properties of Electric Charges
21.11 - Insulators and Conductors
21.12 - Coulomb's Law
21.13 - The Electric Field
21.14 - Electric Field of a Continuous Charge Distribution
21.15 - Electric Field Lines
21.16 - Motion of Charged Particles in a Uniform Electric Field
Electric Charge and Electric Fields
22.1 - Introduction to Electric Charge
22.2 - Electric Field Calculations
Gauss' Law
23.1 - Electric Flux
23.2 - Gauss' Law
23.3 - Application of Gauss' Law
23.4 - Conductors in Electrostatic Equilibrium
Electric Potential
24.1 - Potential Difference and Electric Potential
24.2 - Potential Differences in a Uniform Electric Field
24.3 - Electric Potential and Potential Energy - Point Charges
24.4 - Obtaining E From the Electric Potential
24.5 - Electric Potential Due to Continuous Charge Distributions
24.6 - Potential of a Charged Conductor
Capacitance and Dielectrics
25.1 - An Introduction to Capacitance
25.2 - Calculation of Capacitance
25.3 - Combining Capacitors
25.4 - Energy Stored in a Charged Capacitor
25.5 - Capacitors with Dielectrics
Current and Resistance
26.1 - Electric Current
26.2 - Resistance and Ohm's Law
26.3 - Resistance and Temperature
26.4 - Superconductors
26.5 - A Model for Electrical Conduction
26.6 - Electrical Energy and Power
Direct Current Circuits
27.1 - Electromotive Force
27.2 - Resistors in Series and in Parallel
27.3 - Kirchhoff's Rules
27.4 - RC Circuits
27.5 - Low and High Pass Filters
Magnetic Fields
28.1 - The Magnetic Field
28.2 - Magnetic Force on a Current-Carrying Conductor
28.3 - Torque on a Current Loop in a Uniform Magnetic Field
28.4 - Motion of a Charged Particle in a Magnetic Field
28.5 - Applications of the Motion of Charged Particles in a Magnetic Field
28.6 - The Hall Effect
Sources of the Magnetic Field
29.1 - The Biot Savart Law
29.2 - The Magnetic Force Between Two Parallel Conductors
29.3 - Ampère's Law
29.4 - The Magnetic Field of a Solenoid
29.5 - Magnetic Flux
29.6 - Gauss' Law in Magnetism
29.7 - The Magnetic Field of the Earth
Faraday's Law
30.1 - Faraday's Law of Induction
30.2 - Motional emf
30.3 - Lenz's Law
30.4 - Induced emfs and Electric Fields
30.5 - Generators and Motors
30.6 - Eddy Currents
30.7 - Maxwell's Wonderful Equations
31.1 - Self-Inductance
31.2 - RL Circuits
31.3 - Energy in a Magnetic Field
31.4 - Mutual Inductance
31.5 - Oscillations in an LC Circuit
31.6 - The RLC Circuit
Alternating Current Circuits
32.1 - ac Sources and Phasors
32.2 - Resistors in an ac Circuit
32.3 - Inductors in an ac Circuit
32.4 - Capacitors in an ac Circuit
32.5 - The RLC Series Circuit
32.6 - Power in an ac Circuit
32.7 - Resonance in a Series RLC Circuit
Electromagnetic Waves
33.1 - Maxwell's Equations and Hertz's Discoveries
33.2 - Plane Electromagnetic Waves
33.3 - Energy Carried by Electromagnetic Waves
33.4 - Momentum and Radiation Pressure
33.5 - Radiation from an Infinite Current Sheet
33.6 - The Production of Electromagnetic Waves by an Antenna
33.7 - The Spectrum of Electromagnetic Waves
The Nature of Light and the Laws of Geometric Optics
34.1 - The Nature of Light
34.2 - Measurements of the Speed of Light
34.3 - The Ray Approximation in Geometric Optics
34.4 - Reflection and Refraction
34.5 - Dispersion and Prisms
34.6 - Huygens' Principle
34.7 - Total Internal Reflection
34.8 - Fermat's Principle
Geometric Optics
35.1 - Images Formed by Flat Mirrors
35.2 - Images Formed by Spherical Mirrors
35.3 - Images Formed by Refraction
35.4 - Thin Lenses
35.5 - (Optional) Lens Aberrations
35.6 - (Optional) The Camera
35.7 - (Optional) The Eye
35.8 - (Optional) The Simple Magnifier
Interference of Light Waves
36.1 - Conditions for Interference
36.2 - Young's Double-Slit Experiment
36.3 - Intensity Distribution of the Double-Slit Interference Pattern
36.4 - Phasor Addition of Waves
36.5 - Change of Phase Due to Reflection
36.6 - Interference in Thin Films
Diffraction and Polarization
37.1 - Introduction to Diffraction
37.2 - Single-Slit Diffraction
37.3 - Resolution of Single-Slit and Circular Apertures
37.4 - The Diffraction Grating
37.5 - Polarization of Light Waves

Expert TA Support

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  • Browser: Chrome, Safari, IE, Firefox
  • OS: Windows 7 or higher, Mac OS 10.5.5 or higher, iOS, Android OS


Read all FAQs

Contact Support

If you need immediate assistance, you can reach us 24 hours a day at the following number:

1 (877) 572-0734

Or contact us by email:


Frequently Asked Questions

Q: How do I find my password?

Expert TA has a simple password reset and retrieval page which uses your email/userid. To begin you need to navigate to the login page. From the login page click the link below the login labeled as “Forgot your password: Request Password Reset Email” or use this direct link https://www.theexpertta.com/ResetPassword.aspx. Once you reach the Reset Password page follow the on screen instructions to send yourself an e-mail. The e-mail with the subject line “ExpertTA Reset Request” will include a link with a time based encrypted key to allow you to change the password. If your e-mail program prohibits you from clicking the link you may just copy the link into a browser. Once you have accessed the site you should see your email/userid grayed out above the password entry field where you simply set and confirm a new password the password should change immediately.

NOTE: The key included in the e-mail link is only good during the same day as issued based on Central Standard Time from 12am in the morning until 11:59 PM. If the time period expires the process must be restarted from the beginning and a new key must be requested.


Q: How do I navigate to my Class or Assignment?

Depending on your role as an Instructor, TA, Student or other you will have certain privileges for each class or assignment you have been associated with. The default Class Management screen will allow quick navigation to any of the areas of the system you may need to reach. Most users have this associated to their My Home menu or the Class Management Menu. The view should look like one of the following below.


Instructor/TA View


Student View


Selection / Actions

Use the Class selection window to choose the class you would like to perform actions with. Then if any assignments and/or news are associated they will appear in the Assignment and News Selection pane. The instructor will see a list of the problems associated with an Assignment instead of class news. By selecting the Class or associated Assignments actions can be performed based upon your associated role and privilege level. In order to perform the action you must left click on the action from either the dropdown or right click menu. The actions will take you to different screens or may invoke an on page popup depending on the action required.


Dropdown Actions


Right-click Actions


Q: How do I register a student or my list of students?

You can register a single student or a list of students. The best way to register students is to select the class then choose the Register Students action. A dialog will appear that will allow you to enter a coma delimited list of e-mail addresses. The Expert TA system requires a strong e-mail address for account registration. In order to complete the registration the student must receive an e-mail which allows them to complete the registration. You must select the Role of Student and save. The list of users will be created with an association role of student to the class you register them for. If the user already exists the account will not be recreated but the role and association to the class will be added for the existing user account.


Q: How do I create an assignment?

You must go to the Class Management Screen. This should be the default view for both instructors and TA’s. Use the Classes selection box to select the class. Use the dropdown menu below or if your browser supports it you may also use the right click menu. Click on the “Create Class Assignment” option. A new screen will be loaded with the Add Assignment Details screen. You must first set a name and description for the assignment. Then you must set a start and end date/time. The start indicates when the students may begin taking this assignment and the end indicates when the assignment will be queued for the grade process and students will no longer be able to make changes to the assignment.


You will need to then choose from the list of books, chapters and problems. The problems will allow you to get a quick preview by moving your mouse over the list of problems. As you select a problem use the left or right arrows in order to add the problems to the assignment list. Once you are finished you will need to click save to activate the assignment. You can adjust the start and end time of the assignment but changes to the problems are not allowed once an assignment has been set. An indicator will be shown on the edit screen if students have started to take the assignment.


Q: How do I edit grades?

Select the Class or Assignment from the main selection page. Then choose either the View Class Grades for the class or View Assignment Grades for the Assignment. The Grade sheet will appear and will allow you to edit in line or drill down to a specific item and edit.



Select the cell to edit then type the grade and click outside the text area or use the tab key to activate the grade change dialog. The original calculated grade will be displayed above and the New Grade you entered will be shown below. You must enter a comment for the grade change this will be shown later

when you mouse over the grade should you need a reminder as to why the grade was changed. Any grades changed from the calculated grade will reflect the change by using a red background.


Contact Us

Expert TA is located in downtown Tulsa, OK.

Street Address
Expert TA, LLC
Suite 220
624 South Boston Avenue
Tulsa, Ok 74119

Phone: +1 877-572-0734
Email: main@theexpertta.com

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