有效教学是指教师在达成教学目标和满足学生发展需要方面很成功的教学行为,它是教学的社会价值和个体价值的双重体现。为了实现科学课堂的教学有效性,我们进行了以下尝试: Effective teaching refers to the teacher's teaching behavior which is very successful in achieving the teaching goal and meeting the needs of students' development. It is the double manifestation of social value and individual value of teaching. In order to achieve the teaching effectiveness of the science class, we made the following attempts: