摘    要在浙江省的初中教育阶段，由于科学合科的教学模式，虽然光学知识所占比例不大，但内容十分重要，而且光学成像部分的内容是重点考察内容。因此在教学过程中，实验教学越来越成为学生理解知识点、激发探究精神的重要手段。针对这部分初中学生较难理解的光学知识，实验探究必不可少，无论是从知识结构、思维方法，还是情感态度价值观等方面，光学的实验教学都为初中科学知识的学习做出了铺垫。本文拟以七年级下册凸透镜成像探究实验为例，在对教材解读和学生认知分析的基础上，对该光学实验的教学进行详细分析，探讨实验教学方法，有效改进实验，让学生体会初中光学科学探究的基本过程，提高学生的科学素养。88787

In the junior high school education of Zhejiang province, since the teaching mode of scientific cooperation department, the proportion of optical knowledge is not large, but the content is very important。 And the content of the optical imaging is the key part that needs to inspect emphatically。 Therefore, in the teaching process, the experiment is increasingly becoming an important method of teaching students to understand the knowledge and inspiring students’ spirit of inquiry。 For this part of the knowledge of optics which is difficult to understand, experiment inquiry is essential。 Both from the structure of knowledge, way of thinking, or emotional attitudes and values, etc。, the teaching of optical experiment makes the groundwork for the study of the junior high school science knowledge。 This article is intended to take the experiment inquiry of convex lens imaging in seven grade volume two as an example。 Basing on the analyses of teaching materials and students’ cognition, the optical experiment is investigated in detail and the experiment teaching method is discussed, the improvement for the experiment is given as well。 We should let the students realize the basic process of the optical science inquiry at junior high school, and improve the students’ scientific literacy。源Q于D优G尔X论V文Y网wwW.yOueRw.com 原文+QQ75201`8766

毕业论文关键词：光学；初中；探究实验；凸透镜成像；教学改进

Keyword: Optics; Junior high school; Experiment inquiry; Convex lens imaging; Teaching improvement

目    录

1 引言 4

2 光学知识点及凸透镜成像简介 4

 2。1 光学基本知识点 4

 2。2 透镜及凸透镜成像规律 4

3 教学分析 6

 3。1 教材分析——以凸透镜成像为例 6

 3。2 学情分析——学生心理与知识特点 6

 3。3 教学目标——三维教学目标 6

 3。4 教学重难点 6

 3。5 教学步骤设计 6

 3。6 实验教学流程 6

4 凸透镜成像光学实验教学过程的探究与实践 8

 4。1 光学实验教学中的制约因素 8

  4。1。1 实验设备的制约 8

  4。1。2 学生认知效果的制约 8

 4。2 光学实验教学改进 9

  4。2。1 实验仪器的改进 9

  4。2。2 对学生认知与探究的引导