Shawn:

I went to Chinese charter school.
I went to math school.
I went to piano school.
I went to english school.
I come back to my house.
I did talk fun.

Correct:
I went to Chinese Charter school.
I went to Math school.
I went to Piano school.
I went to English school.
I came back to my house.
I did Talk Fun.

Hello Shawn! Thank you for submitting your homework. Please take note of the rules in capitalization. See you in class!