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1990年部颁物理教学大纲(修订本)初中部分与1986年原大纲相比作了较多的改动。我们不揣冒昧,仅就大纲修订本中的初中知识扩展部分谈谈学习体会。“浮力”这章教学是初中物理的一个重要内容,在实际中有广泛的应用。由于原大纲限定“在阿基米德定律和沉浮条件的教学中,都不布置综合题”,致使这两个本来密切关联的知识点割裂各自独立。客观上不仅不利于考查了解学生对这方面知识的掌握程度,也不利于学生对知识的应用。对此修订大纲改为“不宜布置过难的综合题”,这样改动后,就使这方面知识的
In 1990, the junior high school physics syllabus (revised edition) made many changes compared with the original 1986 outline. We are not afraid to take the liberty of talking about the learning experience of the junior high school knowledge extension in the revised outline. The teaching of “buoyancy” is an important part of junior high school physics. It has a wide range of applications in practice. As the original syllabus defined that “in the teaching of Archimedes’ law and ups and downs, no comprehensive questions were laid out”, these two closely related knowledge points were separated and independent. Objectively, it is not only unfavorable to examine the students’ mastery of this knowledge, but also is not conducive to students’ application of knowledge. The revised outline was changed to “a comprehensive question that should not be difficult to arrange.” After this change, the knowledge in this area