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分散、少量、多次练。对初中学生来说,一次课堂练习量不宜过多,太多则容易混淆。因此,我采用了分散、少量、多次练的方法,效果较好。例如:元素符号本是初中化学第二章第三节的内容,如果到讲第三节时让学生在一节课全部记住是不现实的,我在讲完第一节课进行课堂练习时就开始教学生记元素符号,默写元素符号,下一堂课时,再测验一次。到讲完第二章第二节内容时,学生已记住一大半元素符号了。
Scattered, small, many practice. For junior high school students, the amount of practice in a class should not be excessive, and too much is confusing. Therefore, I have adopted a method of decentralization, small amount, and repeated practice. The effect is good. For example, the element symbol is the content of the third chapter of junior high school chemistry. If it is unrealistic for students to remember all the lessons in the third quarter, I will finish the first class and practice in class. Start teaching student element symbols, write element symbols, and then test again at the next class. By the end of the second chapter of the second chapter, students have already remembered more than half of the elemental symbols.