How do I start thinking like a teacher?

Take everything as a learning experience. Map out how I would do things and see what could be done differently to make it more productive. Some times I think that I think like a teacher but many times I wonder if I’ll ever get that skill. Often I’m worried I won’t be able to teach and reach everyone and get them to reach their goals. In the summer I teach swimming lessons and only have to worry about getting them to improve in small increments. Usually there are no more then 10 in a group and it’s very easy to see who’s not getting it and will need more help. In a school environment where kids are learning facts and knowledge how do you know if everyone is getting it especially if the student themselves doesn’t know they aren’t getting it and do not ask for help. I’m hoping the more experience I have and the more knowledge I gain will help me become more comfortable in changing my way of thinking from looking at things just from a perspective as a student into one of both a student and a teacher.