建构主义心理学认为,学习并非是学习者对于教师授予知识的被动接受,而是学习者以自身已有的知识和经验为基础的主动的建构过程。因此,有效的数学学习活动不能单纯依靠模仿、记忆、训练,而要引导学生动手实践、自主探索、合作交流。“动手实践”旨在让学生在动手实践中经历数学学习过程,得到数学生活体验,很好地去进行探索、发现和创造,进而能解决一些实际应用问题。这是改善数学学习方式应持的有效教学策略。 Constructivism psychology holds that learning is not a passive acceptance of learners for the granting of knowledge, but an active constructivism of learners based on their own knowledge and experience. Therefore, effective mathematics learning activities can not rely solely on imitation, memory, training, but to guide students to practice, independent exploration, cooperation and exchange. “Hands-on Practice ” aims at letting students go through the process of mathematics learning through hands-on practice, get the experience of mathematics life, and well explore, discover and create, and then solve some practical problems. This is an effective teaching strategy to improve the way mathematics learning should be held.