They never know in our hearts a small abacus, section I, is a mathematics lesson, we have the opportunity to escape.

他们永远都不知道我们心中的小算盘，第一节是数学课，我们都趁机逃了。

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Mathematics teaching is a highly sophisticated teaching process, a good method of leading in a new lesson directly influences the quality of classroom instruction.

数学教学是一个十分复杂的教育过程，一个好的导入新课的方法是直接影响一堂课质量的关键。

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This article combines two aspects together: that is, take a lesson from the history of mathematics and melt the history of prime number into the design of teaching plan for school-based curriculum.

本文将这两个方面的问题结合在一起：以数学史为鉴，将素数的数学史融入校本教案进行设计。

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