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研究基于有效教学的初中科学概念课的设计是促进教师和学生持续进步的需要,也是新课程实施面向纵深发展的需要,通过“密度”一课的教学,反思了科学课堂的有效性和概念教学的关键点。
To study the design of junior high school science concept based on effective teaching is to promote the continuous improvement of teachers and students. It is also the need of the new curriculum oriented to the further development. Through the teaching of “Density”, we can reflect on the validity of science class and The key point of concept teaching.