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New Users Start Here

You'll need to purchase Tk20 to get started. However, please note that new students/users cannot purchase a Tk20 student account until after classes begin.

Tk20 logo

New Tk20 Login Method & Link

Students will now be able to log into Tk20 using your UTA email/password (similar to login into your Canvas or MyMav account) and UTA MyApps

To log in, go to and find the Tk20 app, or use the direct link. (Paid account required.) Everything else about using Tk20 will stay the same, including how you access your course or portfolio and upload assignments.


Tk20 Access and Tips

  • To purchase Tk20: Wait for your first week of class. New students will not be able to purchase Tk20 student account until after classes begin.


  • Purchase a TK20 student account

  • If you have not purchased your Tk20 student account, navigate to, select "I need to purchase my 7 year Tk20 account” and click the continue button. From there you will need to navigate through several screens. 

  • Pay a one-time fee for your account of $139.00 (plus tax).Your account is valid and accessible for seven years.

  • Register with Tk20 using your 10-digit UTA student ID/NETID# and UTA-issued email address. Using another email or an incorrect UTA student ID/NETID# will result in delays in account activation. Account activation can take up to 48 hours

  • You will have access to your account for seven years, even after you graduate. 


  • Note: You may experience a problem when purchasing your account if you try to register before your first class.

  • New Login Method for Tk20 

  • As of Monday, June 20, 2022, you will be able to log into Tk20 using your UTA email and password. You will now log into Tk20 the same way you log into your Canvas or MyMav account.
  • You can use the Tk20 app to log in: Go to and find the Tk20 app. If you do not have a paid account, you will be unable to log into the Tk20 app. Or by use the direct link:
  • Everything else about how you use Tk20 in a course will stay the same. You will access your course or portfolio and upload any assignments the same way. 


Quick Tips

  • Clearing your browser cache and using a prive or incognito browser window. 

  • Using an incognito (private browser) may help you bypass log in issues.

  • If neither work, a NETID password reset is advised. Go to:


Tips for Using Tk20

  • Only open Tk20 in one browser at a time. Opening TK20 multiple browsers or even multiple tabs within the same browser can result in the loss of data.
  • Use the recommended browsers: Google Chrome, Mozilla Firefox or Safari. Internet Explorer is not compatible with Tk20. Save your work regularly using the save button at the bottom of each page, otherwise information may be lost. 
  • Do not use the back button in the browser window or information may be lost. Use the back button within the Tk20 platform. Always sign out of Tk20 when finished. Click at the top right of your page where it indicates “Hi, and your name” and click on the SIGN OUT bar.
  • Use your UTA email address to communicate about issues. We are required to communicate with students using your university-issued UTA email address to establish your status as a student. Help desk tickets ( be sent from your UTA email and include your 10-digit UTA Student ID/NETID#.
  • Communicate with the Tk20 help desk and your instructor regarding class assignments. If you experience technical issues that prevent you from submitting an assignment, please contact the Tk20 help desk and your instructor. Your grade will not be affected in this situation. However, once resolved, you are expected to submit work into the Tk20 system.
  • Have other Tk20 questions? Tk20 assistance is provided through the College of Education, Monday through Friday from 8 a.m. - 5 p.m. Requests made after hours may not be addressed until the following business day. Please use this form to make requests from your UTA email account and include your 10-digit UTA Student ID/NETID#.

  • NOTE: The College of Education Tk20 Help desk can only communicate with you regarding Tk20 issues using your official UTA email address. 




If you have any questions, please contact the College of Education Tk20 help desk. We are here to assist you. You can reach us by using the email or the request form:

Having trouble access your account? Try the following:


  1. Verify that you have purchased a Tk20 student account. You should have a confirmation email in your UTA email account from Watermark Tk20. Your account will be active within 48 hours.
  2. Clear your web browser. Often log-in problems with a paid account can be resolved by clearing your browser data and cache. When clearing browser data, make sure you delete both the cached data and cookies.
  • PC users: Hold down the control+shift+delete buttons. This shortcut works in the Chrome, Firefox, and Edge internet browsers. Set the range to clear to “everything” or “all time,” whichever way it is stated. Restart the browser for the changes to take effect.
  • Mac users: Click Safari in the upper left hand corner of your screen. Click Preferences in the menu that appears. Click the Privacy tab in the window that appears. Click the button Remove All Website Data. Click Remove Now in the pop up window.
  1. Reset your password. If clearing your browser does not work, reset your UTA NETID password: Resetting your NETID cannot be done through the Tk20 Help Desk as that function goes through UTA self-service. Go to the NetID self-service to check or reset your UT Arlington NetID password at Once complete, please try to log-in to TK20 again.

Unresolved Tk20 login issues: 

If neither of these remedies work, use your UTA email account to contact the College of Education at this form, include your 10-digit UTA student ID/NETID#. Attaching a screenshot of your error message can help expedite the process but Is not required to submit a help desk ticketPlease note that requests are usually responded to the same daytypically during regular business hours. After regular business hours help is addressed when possible.

If you have an urgent need outside of regular business hours, you can contact the Watermark help desk at for assistance. 

Our FAQs may provide answers for frequently asked questions:

We use Tk20 to support student success Data collected in Tk20 are analyzed at the student, course, program, and department level to inform continuous improvement of our programs. This data evidence is required to maintain our teacher certification and accreditation status.

Check out our frequently-asked questions or contact us

Need Help?

Check out our frequently-asked-questions page or contact us at to use your UTA email account and to include your 10-digit, UTA student ID/NETID# when emailing us. Please contact your instructor if your question involves a class assignment