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本节课的预设对象是实验班学生,基础相对较高,对于实验操作有一定的基础,理论知识也扎实。氯化氢气体是高中重要的常见气体之一,因此本节课的设计思路突破传统课堂的“填鸭式”思维,由喷泉实验的现象激发学生的好奇心,引导学生自主合作完成喷泉实验,在实验中解决问题、得出结论。教师帮助学生建构物质学习的思维导图,突出学生在学习活动中的主体地位,真正做到“以学定教,以教导学”。一、教学目标1.知识与技能
The presupposition object of this lesson is experimental class students, the foundation is relatively high, there is a certain foundation for experimental operation, and theoretical knowledge is also solid. Hydrogen chloride gas is one of the most important common gases in high school. Therefore, the design ideas of this lesson break through the traditional “spoon-feeding” thinking of the classroom. The phenomenon of fountain experiment stimulates students’ curiosity and guides students to work independently to complete fountain experiments. Solve the problem in the experiment, draw the conclusion. Teachers help students build a mind mapping material learning, highlighting the students in the learning activities of the dominant position, truly “to learn to teach, to teach learning ”. First, the teaching objectives 1 knowledge and skills