帮忙改英语语法错误.Students studying in public school have many advan

帮忙改英语语法错误.
Students studying in public school have many advantages.Students can learn more than they stay at home.Therefore,children should go to public school to study.
First of all,physical education courses can promote children's general health.In public school,children must participate and do some exercise every day.This regular physical exercise for children is very good.Physical education also teaches about how to get balance nutrition,for children will know what foods are good for their health,and they will maintain good eating habits.students should learn the importance of physical fitness at an ealy age,because students can reduce their stress while doing exercise and exercise gives students a good balance.
Although,physical education teaches children how to get life skills.Kids learn about how to communicate whith others,they can give their friend some good recommendations,yet they can not deliberately criticism to their friends,kids should respect each other.Kids also can learn about the benefits of healthy competition.They can not cheat the game and they should give congranduation to winner.Kids learn about the self-discipline is a important life skill.For example,they can not watch TV,play games when they doing homework,and they must to observe the rules.
请高手指教,帮小弟改下其中的错误,有些句子连接的不是很好,如果能指点出来就更好了.

Students studying in public schools(加s) have many advantages.They(Students改为They) can learn more than they do（stay 改为do） at home.Therefore,children should go to public school.(to study应省去).
First of all,physical education courses can promote children's general health.In public schools,children must（participate省去） do some exercise every day.This regular physical exercise is very good for children.（for children放在句末） Physical education also teaches about how to get balance nutrition,for children will know what food is(foods改为food,同时 are 改为is) good for their health,and they will maintain good eating habits.students should learn about（后加about）the importance of physical fitness at an early age,because they(students改为they) can reduce their stress by (while改为by) doing exercise which(and 改为which,同时exercise省去）gives them(students改为them) a good balance.
Although（逗号省去） physical education teaches children （how 省去）to get life skills,kids learn about how to communicate whith others,they can give their friends some good recommendations,yet they can not deliberately criticize (criticism改为criticize,同时to省去)their friends,kids should respect each other.Kids also can learn about the benefits of healthy competition.They can not cheat the game and they should give congradulations to the winners.Kids learn about the self-discipline is a important life skill.For example,they can not watch TV,play games when doing homework,and they must obey (observe改为obey)the rules.