A teacher asked me if they don’t want students to proceed with their code studio lessons outside of classtime, can they be hidden again once they have been shown?
You can easily hide and unhide lessons at the student our section level! Learn more here: https://support.code.org/hc/en-us/articles/115001479372-Hiding-units-and-lessons-in-Code-org-courses
As I read you want to know how you prevent your student that they do not use lesson outside.
And for that, you want to hide lessons.
Yes, you can hide lesson easily via the use of a visible or hidden button. You can also hide the whole unit via use this method
Hope this will help you