《全日制义务教育科学课程标准》提出:初中科学课程是以提高学生科学素养为宗旨的课程,培养学生的实践操作能力、动手能力和创新思维能力。初中科学是一门实践性很强的学科。在科学教学中,我们不能单纯靠老师讲解,也不能完全依靠教师的演示,必须让学生亲自动手实验,在反复观察的实验活动中掌握各种知识、技能。我根据科学课的特点,把多媒体技术用到了科学教学中,服务于我们的科学教学。从多媒体技术中的一个小小角——自制实验视频,谈谈如何优化初中科学课堂教学,希望能引起各位同行的共鸣! The full-time compulsory education science curriculum standard puts forward that the junior high school science curriculum is a course aimed at improving students ’scientific literacy and cultivating students’ practical ability, practical ability and innovative thinking ability. Junior high school science is a highly practical discipline. In science teaching, we can not simply rely on the teacher to explain, we can not rely entirely on the teacher’s demonstration, we must let the students hands-on experiments, in the repeated observation of experimental activities to master a variety of knowledge and skills. According to the characteristics of science class, I use multimedia technology in science teaching and serve our science teaching. From a small corner of multimedia technology - self-made experimental video, talk about how to optimize junior high school science classroom teaching, hoping to arouse the sympathy of all colleagues!