基于回收标志内不同数字代表塑料的单元整体教学——以“合成高分子”为例

Overall Unit Teaching of Synthetic Polymer Based on Plastic Recycling Signs

以塑料回收标志内不同数字代表的塑料在生活中的用途为载体,辅助自制教具进行模型拼插,在对塑料回收标志内不同数字对应塑料的成分分析中,既落实了合成高分子的基本方法和高分子化合物在生活中的应用等学科知识,又培养了学生宏观辨识与微观探析的化学学科核心素养。

This paper takes the use of different numbers of plastics in the plastic recycling sign in life as the carrier,and assists the self-made teaching aids to carry out model splicing.In the component analysis of plastics corresponding to different numbers in the plastic recycling sign,it not only implements the basic methods of synthesizing polymers and the application of polymer compounds in life,but also cultivates the students’academic literacy of macro identification and micro discrimination.