论文部分内容阅读
把课堂还给学生,让学生大胆地去尝试、去思考、去表达,一定会有许多意外收获!题目如图1,正方形ABCD的边长为1,P,Q分别为边AB,DA上的点。当△APQ的周长为2时,求∠PCQ的大小。该题是人教A版普通高中课程标准实验教科书《数学4》(必修)(以下简称教材)第147页B组第7题。题目难度较大,笔者在习题课上把它作为例题,带领学生一起进行探究。笔者在教学时把课堂还给学生,让学生大胆
The class back to the students, so that students boldly to try, to think, to express, there will be many accidents! Topic shown in Figure 1, the side of the square ABCD is 1, P, Q, respectively, AB, DA point. When △ APQ circumference of 2, find the size of PCQQ. The title is a human teach A version of ordinary high school curriculum standard experimental textbook “Mathematics 4” (compulsory) (hereinafter referred to as teaching material) on page 147 Group B seventh question. The topic is more difficult, I take it as an example in the exercise class, leading students to explore together. The author returned the class to the students while teaching so that the students would be daring