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情景中直观感知,操作中准确确认,思辨中反复论证,让定义的生成更自然一些,让折纸实验的作用发挥得更充分一些。1教学目标(1)借助对图片和实例的观察,抽象概括出直线与平面垂直的定义。(2)通过直观感知,操作确认,归纳概括出直线与平面垂直的判定定理;并能运用定理证明和直线与平面垂直有关的简单命题。(3)进一步培养和发展学生的空间想象能力,推理论证能力和用图形语言进行交流的能力,感悟和体
Intuitive perception of the scenario, accurate confirmation of the operation, repetitive demonstration of speculation, the definition of the generation of more natural, so that the role of origami experiment play a more adequate number. 1 teaching objectives (1) With the observation of the pictures and examples, abstract summed up the vertical and linear definition of the plane. (2) Through intuitionistic perception and operation confirmation, the judgment theorems of vertical lines and planes are generalized; and the simple propositions related to the vertical lines and plane verticals can be proved by using theorems. (3) to further develop and develop students’ spatial imagination ability, reasoning and argumentation ability and the ability to communicate in graphic language, perception and body