What would I study?

In my future, I want to be a teacher of primary school. I love this job because I think it's beautiful to see how childrens are learning. I would like teach him how to do maths' operations, read, write...
Also, I think with this job you have a perfect family life, ie, you have long holidays for stay with your family, with your friends... and enjoy your free time.

Moreover,  I like doing exams, correct them, and I would like to do more didactic my classes. In my opinion, doing activities in common, or debates, students will be more interested in the subject, and probably they could learn more.