Two questions: 1. What are the educational invariants? I would worry that someone trying to disrupt the education space would try too many new things, and lo

Two questions: 1. What are the educational invariants? I would worry that someone trying to disrupt the education space would try too many new things, and lose the basics along the way, so I’d want to know what the fixed behaviors needs to be. 2. How did gamification go? It was very popular there for a second, but nobody is reaching for it on the shelf now. Why is that?