20世纪以来,科学技术进入了有史以来发展最快的历史时期。而且,随着素质教育的实施,以往的“应试教育”已经不能调动学生的学习积极性了。所以,在科学课堂上,教师应在有效的时间内,让学生学会主动地去获取丰富的知识,提升教学的实效性,使学生能够在高效的课堂中,得到全面的发展。 Since the 20th century, science and technology have entered the history of the fastest growing historical period. Moreover, with the implementation of quality education, past “exam-oriented education ” can no longer mobilize the enthusiasm of students. Therefore, in the science classroom, teachers should, within effective time, enable students to learn to take the initiative to acquire abundant knowledge and enhance the effectiveness of teaching so that students can develop in an all-round way in an efficient classroom.