Physical education classes should be require though the compulsory for high school students.

Nowadays, I usually have debate with my friends. so, this is my opinion. What do you think about my opinion?

I agree (think/believe?) that physical education classes should be require compulsory for students.

First of all, PE classes could help students' health.
In Korea, students have no time on school days. When they get up in the morning, they have to go school, and then after school, they have to go a lot of academies. So, these days, a lot of students suffer from obesity.
It's a big problem worldwide. I saw in the news that obesity is causing other diseases like high blood pressure, diabetes and myocardial infarction. That's why we need to PE classes in high school.

Secondly, PE classes could improve students' social skills.
We usually say that a school is small society. Why? That's why (because?) we learn a lot of things in school. PE is also one of the classes subjects in school. When we play a soccer in PE class, we have to interact with each other. At that times, In this situation we could can learn about how to live with other person people. One of them person may play very well, and also one of them another may play badly. Even though they're not equally matched each other in terms of skill, they're one team.

Thirdly, PE classes could make a improve co-ordination.
In During this season, we usually see an icy road roads are usually very icy.

If your body is not working very well, you could hurt from an icy road.(i'm not sure what you are trying to say here, sorry)

So, It is important that for co-ordination.

For that all reasen all of these reasons, I agree (think/believe?) that PE classes should be compulsory for students.

(or: I think that all students should be required to do/take PE classes)