汉代学者董仲舒提倡:“不知则问,不能则学。”现代教学论认为“知识+方法”是学生能力的基础。这就要求数学教学要让学生在问题情境中长知增智,让课堂以发现问题为起点,以研究问题为重点,以解决问题为关键。这样学生的知识及智慧才会与日俱增。在新课程理念下,小学 Dong Zhongshu, a scholar of the Han Dynasty, advocated: “I do not know, but I can not learn.” Modern teaching theory holds that “knowledge + method” is the foundation of students’ abilities. This requires that mathematics teaching let students know more about intelligence in the problem situations, so that the classroom starts with the discovery of the problems, focuses on the research questions and resolves the problems. This will increase the knowledge and wisdom of students. In the new curriculum concept, primary school