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化学课堂教学一般是在实验的基础上展开的,注重实验教学是提高化学课堂教学效果的重要手段.长期的教学观察中我们发现,由于受到化学理论知识的前馈影响,很多教师在指导学生进行化学实验的时候,要么固守现成的结论,实验草草收场,毫无价值;要么漠视理论知识的指导价值,将实验的价值和功能无限夸大,各施己教,使得实验本身的意义大打折扣.科学有效的化学实验教学应该是理论指导下的创造性活动.一、夯实实验理论基础,为实验顺利进行做准备
Chemistry classroom teaching is generally carried out on the basis of experiments, focusing on experimental teaching is an important means to improve the teaching effect of chemistry classrooms.In the long teaching observation, we find that due to the feedforward of chemical theory knowledge, many teachers are guiding students In chemical experiments, either clinging to ready-made conclusions, experimentally ending up without value, or disregarding the guiding value of theoretical knowledge, exaggerating the value and function of experiments in an infinite exposition, Effective teaching of chemistry experiment should be a creative activity under the guidance of theory.First, lay a solid foundation for experimental theory and prepare for the experiment