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笔者以由廖伯琴、何润伟主编的义务教育物理课程标准实验教科书《物理(8年级)》(2010年7月修订、印刷),教材135页作业第3题为例,设计并进行了一堂设计性实验探究课的教学,与同行分享。题目是:现有弹簧测力计、天平、量筒、刻度尺、烧杯、水、细线等器材,你有哪几种办法可以测出一个小铁块浸没在水中所受到的浮力?这道开放的设计性实验题,要求学生选择不同的器材,多种实验方案进行探究。为了在一节课内能顺利完成
The author designed and conducted a design experiment by taking the third task of the 135th page of the compulsory education physical curriculum standard experiment textbook “Physics (Grade 8)” (revised in July 2010) compiled by Liao Boyin and He Runwei. Explore the teaching of class and share with your peers. The topic is: the existing spring dynamometer, balance, graduated cylinder, scale, beaker, water, thin wire and other equipment, which of several ways you can measure a small iron immersed in the water by the buoyancy? This open The design of experimental questions, require students to choose different equipment, a variety of experimental programs to explore. In order to successfully complete a lesson