曾有这么一句话:我听见了,就忘记了;我看见了,就记住了;我做过了,就理解了。的确,只有让学生主动地参与学习与研究、在动手操作、自主实践的过程中学习,才能使学生对概念、新知有所理解并真正掌握,思维得到充分发展,也能让他们全身心地投入课堂活动,数学课堂才能真正“活”起来。《数学课程标准》指出:学生学习应当是一个生动活泼的、主动的和富有个性的过程。学生应当有足够的时间和空间经历观察、实验、猜测、计算、推理、验证等活动过程。教师在教学时更要 There was such a sentence: I heard, I forgot; I saw, I remembered; I have done, it understood. Indeed, only by allowing students to actively participate in learning and research and learning in the hands-on and autonomous practice can students understand and really grasp the concepts and new understandings and fully develop their thinking so that they can devote themselves fully into the classroom Activities, mathematics classroom can really “living ” up. The Mathematics Curriculum Standard states that student learning should be a lively, proactive and personal process. Students should have enough time and space to go through the process of observation, experiment, speculation, calculation, reasoning, verification and other activities. Teachers need more when teaching