Thought breakdown is an abnormality in the process of reflecting the general properties of things and the inner connection between things in the human brain, which is manifested in the analysis, comparison, synthesis, abstraction, generalization and judgment of things. Simply put, the thinking process is disturbed, can not be normal thinking activities. Elementary school students’ thinking is usually broken is usually intuitive and concrete thinking, poor abstraction and generalization ability, lack of purpose and flexibility in thinking. The reasons for the breakdown of thinking in elementary school students can be the following: 1, neurological dysfunction. The etiology of the breakdown of thinking is generally considered to be central nervous system dysfunction or organic lesions of the central nervous system. The neurological basis of thinking is extremely complex, even if the extensive removal or destruction of the cerebral cortex can not make a complete loss of thinking activity, but a small lesion may affect the entire thinking activity. Different brain regions play different roles in the thinking process, and damage or functional defects in each part can produce different aspects of the breakdown of thinking. 2, the lack of thinking strategies. Modern psychology believes that strategies contribute to the processing steps of acquiring, storing and using information, and that a good level of thinking development is always associated with effective thinking strategies. Students to effectively learn knowledge and improve their thinking skills, must store some strategic knowledge in the mind about how to think at a hierarchical level, and in the thinking process with strategic knowledge to monitor their thinking processing. When thinking, attention should shift back and forth between high-level strategic knowledge and bottom-level descriptive and procedural knowledge, not only noticing the various elements of the problem in front of them, but also noticing their own processing of the problem and how they process it.