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教学(一)一、创设情境,复习引入师:(电脑出示全国十运会吉祥物“金麟”)同学们,看今天的数学课谁来了?师:今天这节课,让我们跟着“金麟”到十运会去看看,好不好?师:不过,“金麟”想出几条口算题,考考你们,你们愿意吗?请同学们注意看题,知道答案的,不用举手直接站起来回答。(课件出示口算题。当学生口算到80÷4时,让学生说一说是如何口算的;当学生口算到75÷3,口算的速度明显没有前面快时——)师:口算是不是有点难啊?下面请同学们用笔算的方
Teaching (A) First, create the situation, review the introduction of division: (computer shows the National Games mascot “Jinlin”) Students who see today’s math class who came? Teacher: Today’s lesson, let us follow the “ Jin Lin ”to the 10th National Games to see, okay? Teacher: However,“ Jinlin ”came up with a few mouth math problems, test you, you are willing to? Please pay attention to the class questions, know the answer, do not cite Hand stand up and answer. (Courseware to show the topic. When the student’s mouth count to 80 ÷ 4, let the students talk about how to count; when the student’s mouth count to 75 ÷ 3, the speed of the mouth count is obviously not in front of the fast -) Teacher: Mouth is not a bit Difficult ah? Here are the students to use pen calculation side