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结构化学知识是中学化学教学中讲授的难点之一,其原因如下: 1.中学生的知识范围有限,空间想像能力较差。 2.教师不可能用数理方程来讲解中学课本中的结构化学知识。加之,我国一般中学的现状是教学仪器设备、模型还跟不上需要。 3.结构化学知识本身是很抽象的。限于中学化学教学层次,只能从抽象的概念介绍,而不能测试必要的数据进行证实。基于以上原因,必然给师生造成教与学的困难。为了突破中学化学教学中的难点,我们依据轨道杂化理论的要点,借助微机的作图功能,以BASIC语言,在STC的
Structural chemistry knowledge is one of the difficulties taught in chemistry teaching in middle schools. The reasons are as follows: 1. The scope of knowledge of middle school students is limited and their spatial imagination is poor. 2. Teachers can not use mathematical equations to explain the structural chemistry of high school textbooks. In addition, the status quo of our country’s general secondary schools is teaching instruments and equipment, and the model can not keep up with the demand. 3. Structural chemistry is abstract in itself. Limited to secondary chemistry teaching level, can only be introduced from the abstract concept, but can not test the necessary data to confirm. Based on the above reasons, it is bound to make teachers and students difficult to teach and learn. In order to break through the difficulty of chemistry teaching in middle school, we based on the theory of orbital hybridization, using computer graphics, BASIC language,