“能从现实生活中发现并提出简单的数学问题,能探索出解决问题的有效方法,并试图寻找其他方法。”这是《数学课程标准》对4～6年级提出的解决问题的目标,强调学生用数学眼光从生活中间捕捉数学问题,倡导用具体有趣,富有挑战性的 “From real life can find and put forward a simple mathematical problem, to explore effective ways to solve the problem, and try to find other ways. ” This is the mathematical curriculum standards for grades 4 to 6 proposed to solve the problem , Emphasizing that students capture mathematical problems in the middle of their lives with mathematical perspectives and advocate specific and interesting and challenging