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实验专题是高考的重点和难点之一。本文通过归纳高中化学实验题类型,采取与各类实验题型相对应的灵活教学策略:为提高学生对常用仪器的主要用途和使用方法的熟悉度和准确度,采取投影抢答和动手操作策略;为提高学生在物质性质方面的得分率,采取自主归纳和共享资源策略;为提高学生设计新情境开放性实验的能力,采取编拟方案和实践论证策略。
Experimental topic is one of the key and difficult college entrance examination. In this paper, we summarize the types of high school chemistry experiment questions and adopt the flexible teaching strategies corresponding to all kinds of experimental questions. In order to improve students’ familiarity and accuracy with the main purpose and usage of common instruments, In order to improve students ’scoring rate in the aspect of material nature, we adopt the strategy of self-induction and sharing of resources. In order to improve students’ ability to design new situations and open experiments, the strategies of preparation and practical demonstration are adopted.