《九年义务教育全日制小学数学教学大纲》明确指出:“学生初步逻辑思维能力的发展,需要有一个长期培养和训练的过程,要有意识地结合教学内容进行。”所以,在数学的课堂教学 “Nine-year compulsory education full-time elementary school mathematics syllabus” clearly states: “The development of students' initial logical thinking ability requires a long-term training and training process, which should be carried out in a conscious manner with the teaching content.” Therefore, in the classroom teaching of mathematics