Mandarin

I class we have been learning Languages, the year eights get put into two groups. There are one group learning sign languages in Miss Mills is teaching sign languages. Then in my class room 42 there is Miss Campbell teaching Mandarin.
Yesterday in my class which is Mandarin. I lernt all my numbers from one-ten and got taught the hand simple, miss Campbell said that we need to learn the hand simples because a big thing in japan is bargaining and if we dont know the number they will show us the simple. To learn Miss Campbell taught us the pīnyīn, sounds like, hanzi.