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初中物理(试用本)第一册中,各物理量的单位,虽然也强调使用国际单位制,但为了照顾长期使用了的其他单位,还保留了一些常用单位制和工程单位制。这次改编的初中物理第一册,彻底删去了其他单位制,以国际单位制贯穿全书。这一改变,对初学物理的学生是没有什么影响的,对于物理教师,特别是多年从事物理教学的教师来说,却要引起足够的重视。在教学中,要改变使用多种单位制的习惯,严格按照国际单位制进行教学,以免干扰学生对国际单位制的掌握,增加记忆上的负担和运算上的困难。
In the first volume of junior high school physics (trial paper), the units of physical quantities, while also emphasizing the use of the International System of Units, have retained some common unit systems and engineering unit systems in order to take care of other units that have been used for a long time. The first book of the junior high school physics that was reorganized this time completely deleted the other system of units and used the international system of units throughout the book. This change has no effect on the students of beginner physics. For physics teachers, especially teachers who have been engaged in physics teaching for many years, they must pay enough attention. In teaching, we must change the habit of using multiple unit systems and strictly follow the international system of units so as not to interfere with students’ mastery of the international system of units and increase the burden on memory and the difficulty in calculation.