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生物课外实验是中学生物实验的重要组成部分,同时也是生物课堂教学的一种有效补充和延伸,因此生物课外实验也就成为生物教材的重要内容,如初中生物第一册(上)中就编入课外实验十多个,在整个实验内容中占有相当大的比重。但是,由于多种原因,不少教师未能充分重视课外实验的教学,所以影响了学生对知
Biological extra-curricular experiment is an important part of biology experiment in middle school, and it is also an effective complement and extension of biological classroom teaching. Therefore, biological extra-curricular experiment also becomes an important content of biology textbook. Compiled into more than 10 extra-curricular experiments, in the entire experimental content occupies a large proportion. However, due to a variety of reasons, many teachers fail to pay sufficient attention to the teaching of extra-curricular experiments, thus affecting students’