For Year 12 since the main target is their IA, so I created a feedback form which they fill after the lesson and send me screen shots of the task they managed to complete and the plan for next steps. This helps me to make a record of the Computer Science IA completed so far.
For Year 9 I used the assignment tab. They were given assignment to complete. They uploaded their programs I checked them and gave the feedback at the same time.
Year 12 finished the task assigned to them during the lesson on class notes. And as part of my correction, I highlighted all the important information which was missing in their answers (marked in yellow by me).