[djslater107]

I may be mistaken, but the date created / modified time stamp is a function of the OS, not specifically the software, and you should be able to check that on Alice project files as well?

Alice 2 and Alice 3 automatically create back up files , and you might ask the students to see those backups so that you can check the project development?

I will also meet with a student and ask them to explain a piece of code, or I will break their project in some way and ask them to fix it in front of me, or ask them to add a feature?

I also tend to ask students create open ended project of their own design, but they must submit a proposal / description beforehand.