教材是教学内容的载体,是人类知识及其精神产品的精华。教材的价值不在于给学生现成的东西,而在于给学生创造的“起点”。学生学习的目的不单纯是为了掌握教材中的知识,而是通过与教材的对话,感受、经历、体验,积极思考,进入更广阔的学习领域。“学材”是人与知识对话的纽带,是一种激活了的教材,它存在于学生和教材之间、教师和教材之间、教师和学生之间。我们把学生的学习基础和生活经验、数学知识的内在结构、数学知 Teaching material is the carrier of teaching content, is the essence of human knowledge and spiritual products. The value of textbooks does not lie in what students are ready to do, but rather in creating a “starting point” for the student. The purpose of student learning is not simply to master the knowledge in the textbooks, but to enter the broader field of learning through dialogues, feelings, experiences, experiences and positive thinking with textbooks. “Learning materials ” is the bond between human and knowledge dialogue, is an activated textbook, it exists between students and textbooks, teachers and textbooks, teachers and students. We put the student’s learning foundation and life experience, the inherent structure of mathematical knowledge, knowledge of mathematics