Upper School Course Registration

Class A Signup Portal Instructions

Course Registration for Students entering Grades 10-12
Note: We don't use online registration for students entering 9th Grade.

  • Go to the Class A Course Registration website 
  • At the Login page, enter your Username and Password
  • Username = first initial, last name (Example: kgately)
  • Password = the seven digit number given to you by your advisor
  • Follow the on-screen instructions and prompts.
  • Remember to print the receipt and sign it, ask a parent or guardian to sign it, and give the signed receipt to your advisor.

Need help? Contact Jim MacVarish (jmacvarish@thayer.org) and Brendan McKiernan (bmckiernan@thayer.org) with login problems or questions about course listings.

2024-25 Upper School Course Offerings