【课前思考】数学源于生活,在数学教学中,我们要注入生活内容,让数学贴近生活,让学生在数学中感受到生活气息,使数学充盈时代精神。教学“方向与位置(”课程标准实验教科书北师大版数学二年级上册)时,让学生正确辨认“东南西北”有一定难度。为此,要调动学生已有的生活与知识经 [Thinking before class] Mathematics comes from life. In mathematics teaching, we should inject life into content, let mathematics close to life, let the students feel the breath of life in mathematics and make the mathematics filling the spirit of the times. Teaching “direction and location (” standard curriculum standard textbook Beijing Normal University math second grade), allow students to correctly identify “southeast northwest” a certain degree of difficulty. To this end, we must mobilize students’ existing life and knowledge