当前,教师在课堂中适量地创设真实有效的问题情境,是其进行教学设计的重要环节。情境创设在数学课堂中的作用主要是服务于学生学习数学,同时又让学生从数学的角度看待情境,使之成为数学知识与技能学习的支撑点,成为数学思维发展的良好土壤。创设最有利于学生进行自主探索、合作交流、动手实践的情境,有利于把知识结构转化为智能结构的情境,创设最有利于学生自己去研究和发现问题并主动解决问题的情境,引导学生在有意义的情境中主动建构数 At present, teachers in the classroom to create a real and effective problem situations, is an important part of their teaching design. The role of situation creation in maths classroom is mainly to serve students’ learning mathematics, at the same time, to let students view the situation from the perspective of mathematics and make them become the supporting points of mathematics knowledge and skills learning and become a good soil for the development of mathematical thinking. The most conducive to students to conduct their own exploration, cooperation and exchange, hands-on situation, is conducive to the knowledge structure into a smart structure of the situation, to create the most conducive to students to study and find problems and take the initiative to solve the situation, to guide students in The number of active constructs in a meaningful context