>What is the number in front of the multiplication sign in the multiplication formula_ Teaching design of the meaning of multiplication and the law of operation

>What is the number in front of the multiplication sign in the multiplication formula_ Teaching design of the meaning of multiplication and the law of operation

·Teaching objectives: 1. Make students initially understand the meaning of multiplication through specific life situations. 2. Lead to multiplication by adding the same number. Master the writing method, reading method and the name of each part. 3. Cultivate students to find and put forward problems