I think most teachers just don’t care. In highschool, I remember asking my math teacher about ruler’s identity, and she had never heard of it. In middle school

I think most teachers just don’t care. In highschool, I remember asking my math teacher about ruler’s identity, and she had never heard of it. In middle school our math teacher told us pi was exactly 22/7. In elementary school one of my teachers said there was no gravity on the moon. My highschool chemistry teacher told us that if you put two cheerios in a bowl of milk, they move towards each other because of their mutual gravitational attraction.