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人教版数学教材在编写上注重观察,强化操作,要求学生在观察和操作的过程中形成表象,依靠已经形成的表象理解、掌握知识,并且能够用语言把思维过程表达出来,充分体现了“动作—感知—表象—概念符号”这一认识规律,结合观察、操作、表达、思维四个方面,达到同步发展的目的,使观察成为思维的源泉,操作成为启迪思维的手段,语
PEP teaching materials in the preparation of the focus on observation, strengthen the operation, require students to form an appearance in the process of observation and operation, relying on the already formed representation to understand and master the knowledge, and can use the language to express the process of thinking, fully reflects the The law of cognition of “action - perception - appearance - concept symbol” combines the observation, operation, expression and thinking to achieve the purpose of synchronous development. Observation becomes the source of thinking, and operation becomes the means of enlightenment thinking.