Infiltration model is divided into two categories: one is the concept of Plausible Reasoning in the penetration mode of teaching.

渗透模式分为两类：一类是合情推理在概念教学中渗透模式。

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Then we analyze plausible reasoning in mathematical curriculum standard and its teaching in each study stage and each teaching material.

接着，文章分析了数学课程标准中的合情推理及合情推理教学在各学习阶段和各教学内容中的体现。

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