凡是教过小学数学的老师都有这样的体会,就是在学习了如何求长方形、正方形的面积和周长后,会有一部分孩子在解决问题时不能正确选择合适的方法。我在教学中做了大胆的探索,带领全体同学在学校操场开展了数学实践活动,引导走出教室悟数学,现在就以青岛版 All teachers who teach primary school mathematics have the experience that after learning how to find the area and perimeter of a rectangle, a square, there will be some children who can not correctly choose the appropriate method to solve the problem. I made a bold exploration in teaching, led all the students in the school playground to carry out mathematical practice, to guide out of the classroom to understand mathematics, and now to Qingdao version