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一般来说,初中学生在刚接触物理时,都有一种新奇感。这种好奇心理如果得不到及时培养,可能很快就会消失。物理教师应通过各种有效途径,将学生的这种新奇感转化为持久的学习兴趣,通过实践,我认为做好实验是一条有效途径。 1 把学生的新鲜感引向学习兴趣利用有趣的演示实验,可以抓住学生的新鲜感,以培养学生初步的学习兴趣。例如,用鸡蛋代替钢球使惯性实验变得“惊险”;在物体浮沉条件实验中,分别将鸡蛋和油滴浮、沉、悬浮在事先配好的不同浓度的溶液中;在热膨胀实验中,将双金属片做成热控门铃;在演示水是热的不良导体时,演示烧不死的金鱼等。每一次
In general, junior high school students have a novelty when they are new to physics. If this curiosity is not cultivated in time, it may soon disappear. Physics teachers should use various effective ways to transform this new sense of students into a lasting interest in learning. Through practice, I believe that doing a good job is an effective way. 1 Bringing Freshness to Students Learning Interest Using interesting demonstration experiments can capture the freshness of students and cultivate students’ initial interest in learning. For example, using an egg instead of a steel ball makes the inertial experiment “thrilling”; in an object floating condition experiment, eggs and oil are respectively floated, submerged, and suspended in pre-prepared solutions of different concentrations; in the thermal expansion experiment, The bimetal sheet is used as a thermal control doorbell; when demonstrating that the water is a poor conductor of heat, a goldfish that cannot be killed is demonstrated. every time