An activity guide I used to ensure the kids slowed down to really discussion and analysing the code in their teams. I give 2 points for complete 1 point for good try. https://docs.google.com/document/d/1VxJEjQKVYfpDfAwa4IuRT6T-6TjyNEIHsaHoR7yTYIA/edit?usp=sharing