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农村学生学习化学感到非常困难,结合新课标的要求和学生实际,教师要运用对比实验帮助学生掌握和理解抽象的化学概念,巧设对比实验,使复杂的实验简单化、绿色化,在实验中体会对比的简洁性,在对比中体会实验的严谨性,提高学生的科学素养,激发学生学习化学的兴趣,从而提高课堂教学的有效性。
It is very difficult for rural students to learn chemistry. According to the requirements of the new curriculum standard and students’ actual conditions, teachers should use comparative experiments to help students master and understand abstract chemical concepts, make comparative experiments cleverly, and make complicated experiments simple and green. In the experiment Comparing the conciseness, comparing the rigor of experimentation, improving students ’scientific literacy and stimulating students’ interest in learning chemistry, so as to improve the effectiveness of classroom teaching.