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三册第一单元《7的乘法口诀和用口诀求商》的第二节课,内容有例2和练习四的6～11题。教学要求是使学生能熟练地会用同一句口诀算两个乘法算式。这种内容,在第二册和本册前面的教材中已经出现过,因此这节课不必细讲,可让学生自学、思考,并给他们以充分的练习。一、自学,思考。例2教学前,先组织学生复习用3、4、5、6的同一句乘法口诀算两个乘法算式
Three volumes of the first unit “7 multiplication formulas and formulas to seek business,” the second class, the contents of Example 2 and Exercise 4 6 to 11 questions. The teaching requirement is to enable students to skillfully use the same formula to count two multiplication formulas. This type of content has already appeared in Book 2 and in the teaching materials earlier in this book. Therefore, this lesson need not be elaborated, allowing students to learn, think, and give them adequate practice. First, self-study, thinking. Example 2 Before teaching, students should be organized to review the same multiplication formulas of 3, 4, 5 and 6. The two multiplication formulas