heres a list of the projects you need to watch to understand STOP!: STOP 1: https://scratch.mit.edu/projects/848085965 STOP 2: https://scratch.mit.edu/projects/955200185 STOP 3: https://scratch.mit.edu/projects/860651124 TCOS 1A: https://scratch.mit.edu/projects/857137699 TCOS 1B: https://scratch.mit.edu/projects/856232991 STOP 4: https://scratch.mit.edu/projects/1137947825 BOWL for CR: https://scratch.mit.edu/projects/1351483038/