《全日制义务教育数学课程标准》中明确指出:数学教学应从学生实际出发,创设有助于学生自主学习的问题情境。因此,课堂教学中教师要以开发学生智力,开启智慧之门为起点,结合现阶段学生的生活积累、所见所识和课堂知识来创设符合课堂教学内容的问题情境,让学生在生动、有趣、益智、好玩的具体情境中理解教学内容,掌握数学的思维方法,提高学生在生活中运用数学的意识。数学教学中所谓的问题情境,就是将单调的教学内容设计到一种情境和悬 Full-time compulsory education mathematics curriculum standards "clearly states: mathematics teaching should proceed from the students’ actual situation, create problem situations that help students to learn independently. Therefore, in the classroom teaching, teachers should start with the development of students ’intelligence and open the door of wisdom, and combine with the accumulation of students’ life, knowledge and classroom knowledge to create a problem situation that is in line with the content of classroom teaching at this stage so as to make the students vivid and interesting , Puzzle, fun specific situations to understand the teaching content, master mathematical thinking, improve students’ awareness of using mathematics in life. The so-called problem situation in mathematics teaching is to design a monotonous teaching content into a situation and a suspension