问题是数学学科的心脏与灵魂,数学知识总是在问题中呈现。问题,是学生不断探究的动力。没有问题就不会有高质量的思维。《数学课程标准》指出:“数学教学应从实际出发,创没有助于学生自主学习的问题情境,引导学生通过实践、思考、探索、交流,获得知识,形成技能,发展思维,学会学习。”在数学课堂中,学生应在教师引导下生动活泼地、主动地、富有个性地学习。教师是引路人,鼓励学生发 The problem is the heart and soul of mathematics, and mathematical knowledge is always present in the problem. The problem is the motivation for students to continuously explore. There is no problem there will be no high-quality thinking. Mathematical Curriculum Standards states that: “Mathematics teaching should proceed from reality and create a problematic situation that does not help students to learn independently, and guide students through practice, thinking, exploring, communicating, acquiring knowledge, developing skills, developing thinking, and learning to learn.” "In the math class, students should learn vividly, actively, and personally under the guidance of teachers. Teachers are guides, encourage students to send