Hello there Woojung,

Thank you for submitting you homework. Please check and take notes of my corrections. Thank you..

Corrections:

I like making things like making a poster, origamu, making a picture poster, making a poster with computer etc.

Correct: I enjoy making things like posters and origami's.

**Avoid repeating words in a sentence for you to not sound redundant.
** Be careful with the spelling of the word "ORIGAMI".

I think making things are good for people's brain because it helps them think.

Correct: I think making things are good for people's mind because it helps them think of something.

**** Use "mind" to mean "someone's memory and their ability to think and feel emotions".