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《义务教育数学课程标准》指出:“教师要提供更贴近学生的生活实际和社会发展实际的数学教学材料,提供更具有丰富数学结构的数学教学材料。”因此,在教学中要因地制宜,灵活地选择并使用好学习材料。学材的选择要利于调动学生已有生活经验,要符合学生认知,利于主动构建,要利于学生探究活动层层深入。这样才能充分发挥学习材料的价值,有效地促进学生的发展。
The standard of compulsory education mathematics curriculum states: “Teachers should provide mathematics teaching material closer to students’ actual life and social development and provide more mathematical teaching material with rich mathematical structure.” Therefore, according to local conditions in teaching, Choose and use your study materials flexibly. The selection of learning materials should be conducive to mobilizing students’ existing life experiences, conforming to the students’ cognition and being conducive to initiative construction, so as to be beneficial to the students’ inquiry activities at every level. In this way, we can give full play to the value of learning materials and effectively promote the development of students.