美国著名数学家哈尔莫斯说过:“问题是数学的心脏”。教学专家卡尔汉也认为:“提问是教师促进学生思维,评价教学效果以及推动学生实现预期目标的基本控制手段。”课堂提问是一种教学手段,更是一门教学艺术。教师要重视课堂提问的实效性,重视通过问题启发学生积极的思维活动,以问题为主线来组织和调控课堂教学。 Harmuth, the famous American mathematician, said: “The problem is the heart of mathematics.” Teaching expert Calhan also believes: “Questioning is a basic control measure for teachers to promote students ’thinking, evaluate teaching effectiveness and promote students’ achievement of expected goals.” Classroom questions are a teaching method and more of a teaching art. Teachers should pay attention to the effectiveness of the questions in the classroom, attach great importance to inspire students’ positive thinking activities through questions, and organize and regulate classroom teaching with questions as the main line.