Grammer check`

1.在 the topic後加that/which, 因為 is teaching and learning是形容the topic,以從屬關係代名詞表達所屬關係.
2.在in any places中, 用some代替any,any只用於否定句.
3.在in the school前加for example/such as等回應之前所表達的例子.另外,若要表達在一般學校裹,不用加the;若要指明特定學校則要加.
4.可把Learning is important to us到teaching also important to us 改成Learning is important to us, so is teaching.
5.the teenager wants 改成the teenager want.因為the teenager是眾數.
6.Therefore, I also have to learn and see how the teaching now day.中 also 可以省略.另外, 在how所引導的子句子需有完整句子.即S+V+O.how the teaching is now day.

2008-12-03 23:34:49 補充：
在第2點中,any也可用於疑問句.

Seriously I don't know how to correct your grammer since your composition is full of error. This is not so simple as you think. Let me rephase as close to the meaning as yours:

I pick my choice for teaching and learning. The reason I choose this because I believe that I can learn many things in my whole life. I have class to attend to in my school. After schooling, I have plenty of things to do. All this is leanring which enhance my knowledge. Yet, teaching is important as well. Nowaday, youngsters always want to short-cut. They don't have the patience to learn. It is important to teach them the right way. Nothing comes easy. Therefore, teaching and learning is my choice.