“体积与容积”这节课是经典的图形概念课,以往的教学中教师经常用“乌鸦喝水”、“阿基米德测皇冠”等故事导入,让学生在排水实验中体会“空间”大小。看似有趣,但是我认为这样的教学将一个概念用另一个概念来理解,并不符合学生的认知规律和学习需求。全国第十二届小学数学教学改革观摩交流会中,王丽兵老 “Volume and volume ” This class is a classic graphic concept class, the teaching of teachers in the past often use “crow drink water ”, “Archimedes measured crown ” and other stories into, so that students in the drainage Experience in the experiment “space ” size. Seemingly interesting, but I think this teaching will be a concept to understand another concept, does not meet the cognitive rules and learning needs of students. National 12th primary school mathematics teaching reform exchange meeting, Wang Li Bing old