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数学教学要紧密联系学生的实际和生活环境,要从具体问题情境中抽象出数学问题;数学教学要从学生已有的知识出发,创设最直接、最自然的问题情境;数学教学要从渗透德育,激发学习兴趣,创设促进学生理解概念、法则的问题情境;数学教学要从数学的实用性,数学的科学性出发,创设出切近学生思维水平的问题情境。可见,问题情境是学习数学的第一道门槛,直接影响着课堂教学的有效性。
Mathematical teaching should be closely linked with the students ’actual and living environment, abstracting the mathematical problems from the specific problem situations; mathematics teaching should start from the students’ existing knowledge and create the most direct and natural problem situations; from the perspective of moral education , Stimulate interest in learning and create problem situations that promote students ’understanding of concepts and laws. Mathematical teaching should start from the practicability of math and the scientific nature of mathematics to create a problem situation that is close to the level of students’ thinking. Can be seen, the problem situation is to learn the first threshold of mathematics, a direct impact on the effectiveness of classroom teaching.