一、利用动手操作，激发学习兴趣兴趣是儿童学习成功的秘诀，是获取知识的开端，如果教师能选用得当的教法，有机结合操作，使学生感到学习生动有趣，学生就会真正感到学有所乐。如：教学“求平行四边形的面积”时，教师自制了可以抽拉移动的长方形教具，上课时演示，将长... First, the use of hands-on operation to stimulate interest in learning is the secret of children's learning success is the beginning of access to knowledge, if teachers can use the appropriate teaching method, the combination of organic operation, so that students feel lively and interesting learning, students will really feel Fun. Such as: teaching “seeking parallelogram area”, the teacher made a rectangular drawing aids can move, class presentation, will be long ...