Used my brain!

Last Thursday, I went to the volunteer work which I do every week. I did not have any work, so I helped my friend teaching math to her student. I figured out some math questions. I am not good at math, but I could figure out. However, it is natural because they were for 1st year students. After that, I taught Japanese. There were some difficult words which I could not explain. I tried hard!

I used my brain!!!