Education has never had only one way to go. What to do and how to do it in order to create the best people in the future have always been wondered by many. Primary school students are in the stage where they are exposed to education for the first time. So should they attend classes all day? 

First, at this age, they are developing mentally and academically so fast, they learn everything so quickly. Hence, it is ideal to teach them as much as possible because they absorb rather everything you teach them. 

However, they also develop physically just as equally fast. Making them attend classes all day would potentially prevent them from growing to the best possible condition. They should have time to spend on physical activities outside of the class as well in order to grow their body.

Additionally, academic knowledge is not the only thing they need to learn. Beside that, they should also learn to play, to communicate, to socilize in order to become a sane adult in the future. For that, leisure activities are essential for their development at this age. 

After all, too much of anything would always have bad effects on everyone. As for primary school students, a balance of classes, physical and leisure activities is the key for their future.