So, I have found that in general, the bubbles in Unit 3 turtle programming work well for monitoring students progress. I am clear with students up front that the system is programmed to look for very specific things and it can't really be otherwise. I think it actually is a great real-life example of the limitations and difficulties of code. They get it. Also, if the students find a way around to intentionally not learn the objective, that's fine with me too. They will struggle on the Performance Task.
The two to three weeks where students work on stage 4-9 and the performance task have been some of the most entertaining and rewarding of my career. Students who were previously struggling saw success and built knowledge and were deeply creative.
I would love a way to harvest the bubbles. I love the bubbles.