美国教课书也很贵，也要100美元左右。教课书是每一门课 都要买的吗？ 孩子说书贵，只买了其中几门课的，其它说老师会发讲义的。 我不知道会不会对上课有影响啊？_留学问答

Many schools have second hand books in their bookstore that you can buy for a fraction of the cost of new books. You can also get second hand books on Amazon. Your child should talk to the teacher for each class whether he/she needs to have those books.。