“离子平衡”学习进阶及教学分析

Learning Advanced and Teaching Analysis of “Ion Balance”

从课程标准、教材及学生的认知水平对离子平衡的学习进阶进行研究,并梳理出在中学的各个学习阶段学习进阶目标,找出学生在各学段的现有认知状态、中间认知状态及最终应达到的认知状态,并给出教师在中学各学段之间应如何进行教学衔接,形成基于离子平衡完整的知识观念。

This paper studies the learning progress of ion balance from the curriculum standards,teaching materials and students'cognitive level,and combs out the learning advanced goals in each learning stage of middle school,and finds out the existing cognitive state,intermediate cognitive state and the ultimate cognitive state that students should achieve in each learning stage.This paper also points out how teachers should carry on the teaching connection between the different segments of the middle school and form the complete knowledge concept based on the ion balance.