第四部分是对基于问题解决的化学学习模式的构建，从基于问题解决的化学学习的涵义、模型构建、学科特点、教学策略和学习策略五个方面进行了论述。
The fourth part constructs the model of problem-solving based learning of chemistry, and discusses its meaning, its modeling, its characters, and its teaching and learning strategies.
通过问题解决教学理论的实践研究表明：（1）问题解决教学是贯穿于综合理科学习的策略，而不是一种固定的模式；
Our research shows that: (1) Teaching of problem solving is a kind of strategy, which is involved in the process of integrated science, not a rot mode!
针对传统数学课程及教学过程存在的问题，提出了“问题解决教学”形式的数学课程理论，并构建完成了其教学结构模式。
Aiming at the actual problems of teaching of math education and math curriculum, the author brings forward the structural models and the curriculum theory of Problems-Solving teaching.
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