I loved this game! Although, from what I saw, it seems like you started with level 4 instead of level 1—so that explains the challenge! Still, after a good while, I managed to get 4 students to cheat without the teacher noticing, haha.
oh damn thats a big mistake, i've changed it to level 4 to test that level. i guess i forgot to bring that back to level 1. haha