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1 教学内容简析1.1 需求分析 学生的学习需求是指学生要达到的目标水平与他现在实际水平之间的差距.本课的教学目标是:了解波的形成条件及过程、波的种类、振动和波的关系;理解波的传播规律和波的图象.学生的实际是只学过振动和振动的图象,会使用《几何画板》软件.此差距很明显.这就要求教师根据建构主义学习理论,通过创设情景、搭脚手架来降低知识的梯度,真正把教学目标转化为学生自己的学习需求.
1 Brief Analysis of Teaching Content 1.1 Needs Analysis Students’ learning needs refer to the gap between the students’ goal level and their actual level. The teaching objectives of this lesson are: to understand the conditions and processes of wave formation, wave types, and vibrations. The relationship between waves and waves; the understanding of wave propagation patterns and wave images. The student’s reality is only to learn the vibration and vibration of the image, will use the “Geometric Sketchpad” software. The gap is obvious. This requires teachers based on constructivism. Learning theory, through the creation of scenarios, scaffolding to reduce the gradient of knowledge, and truly translate teaching goals into their own learning needs.