School bag show 书包秀 This is my school bag. There is a There are,创设情境,启发思考,Do a survey,A: How many children are there in your class? B: There are _ children. A: How many boys are there in your class? B: There are _ boys. A: How many girls are there in your class? B: There are _ girls,Work in your group,自主或小组探究,Amys class,1. There are forty-one children in Amys class. T F 2. There are twenty boys. T F 3. There are thirty girls. T F 4. It was different in Amys class in England. T