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教学目标:1.知识与技能:初步了解中和反应的原理,了解中和反应在日常生活中的应用,能完成中和反应实验。2.过程与方法:通过实验现象得出结论,初步学会用溶液的酸碱性变化来体现反应是否发生的方法。3.情感、态度与价值观:了解中和反应在日常生活中的运用,体验化学知识在日常生活中的作用。教学重点:中和反应的原理。教学难点:从离子角度理解中和反应的原理。教学过程:一、创设情景导入同学们,我们吃皮蛋时,会有涩涩的感觉,要是加一点醋,就感觉好多了,你们知道为什么会这样吗?这一节课我们就来研究这个问题。(板书课题)
Teaching Objectives: 1. Knowledge and skills: a preliminary understanding of the principle of neutralization and understanding of the application of neutralization reactions in daily life, to complete the neutralization reaction experiments. 2. Processes and Methods: The conclusions drawn from the experimental phenomena, preliminary learn how to use the solution of acid-base changes to reflect the reaction occurs. 3. Emotions, attitudes and values: Understand the use of neutralization reactions in daily life and experience the role of chemical knowledge in everyday life. Teaching focus: the principle of neutralization. Teaching Difficulties: From the ion point of view to understand the principle of neutralization reaction. Teaching process: First, create a scene into the classmates, we eat preserved eggs, there will be a sense of Sese, if you add a little vinegar, feel better, you know why it? This class we will study the problem . (Blackboard problem)