1. After signing into your teacher account, click the "Settings" link in the left sidebar.
  2. Select the "Individual Student Settings" link at the top of the page.
  3. Click the box to the left of the student names that you'd like to update settings for.
  4. Select the "Update Settings" button. 
  5. Click on the "Modules" tab at the top of the menu.
  6. Select “Language" from the menu on the left.
  7. Turn the slider off in the “Automatically assign lessons" section.
  8. Click the “Save” button.

Lessons that have already been automatically assigned will remain in the student's lesson sequence unless they are manually unassigned, or you delete the student's placement test.