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【教学过程】一、复习引入师:同学们,还记得三角形的面积公式吗?是什么?生:S=ah÷2。师:你认为三角形的面积与什么有关系?生:三角形的面积与底和高有关。师:那么三角形的面积与底和高到底有怎样的关系呢?今天我们就来继续探究三角形的面积。(板书标题)二、探究练习1.探究底不变,高与面积的关系。师:这里有一个三角形,它的底是6厘米,高是1厘米,面积是多少?(课件出表格)现在
【Teaching process】 First, review the introduction division: Students, remember the triangle area formula? What is Health: S = ah ÷ 2. Teacher: What do you think the area of the triangle is related to? Health: The area of the triangle is related to the base and the height. Teacher: So what is the relationship between the area of the triangle and the height of the triangle? Today, we will continue to explore the area of the triangle. (Blackboard title) Second, to explore the practice of 1 exploration of the same bottom, the relationship between area and height. Teacher: There is a triangle here, it is 6 centimeters at the end, height is 1 centimeter, what is the area? (Courseware out of form) Now