随着新课程的实施，对于课堂教学预设与生成的研究比较多，但鲜有人比较系统的将该研究应用于化学学科层面。

With the implementation of the new curriculum, more and more studies are on class predetermination and generation, but few systematic studies are used in chemical disciplines.

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在很多人的观念里，课程被认为是预设的、静止的、外在控制的，教学是执行课程的过程。

Many peoples view curriculum as pre-planed static controlled by curriculum expert, teaching is the process of curriculum implementation.

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作业的结果有助于形成和预设整个学期的目标，也会在学期课程结束后作为成绩的参考。

The results of the assignment help formulate and anticipate the goals of the semester, and may always be referred to over the course of the semester.

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