【设计背景】2013年以来,我县积极推进以自主学习为目的的课堂教学模式改革,我校提出了“问题牵引”教学模式的尝试。“问题牵引”课堂教学模式,是以解决问题为课堂教学活动的基本导向,以活动为载体,通过设计学习活动为师生互动的基本形式,以解决问题为检验教学效果的基本手段,以培养学生自主学习能力为核心,整体优化课堂结构,促进学生的个性发展、和谐发展。【设计思想】初中化学第八章酸碱盐是前七章知识的综合和提高。这章教 [Design background] Since 2013, the county has actively promoted the reform of classroom teaching model for the purpose of self-study, and our school has proposed the “difficulties” teaching model. The “problem traction” classroom teaching model is based on solving problems as the basic orientation of classroom teaching activities, taking activities as the carrier, designing learning activities as the basic form of teacher-student interaction, and solving problems as the basic means of testing the teaching effects. Focusing on cultivating students’ ability of independent learning, the classroom structure will be optimized as a whole and students’ personality development and harmonious development will be promoted. [Design Idea] The acid-base salt in the eighth chapter of junior chemistry is the synthesis and improvement of the first seven chapters of knowledge. This chapter teaches