【教学内容】人民教育出版社数学三年级上册“综合与实践”——《数字编码》。【教学实录】片段一:课前活动——利用电子书包实现资源汇聚,凸显交流本质课前学习的一周内,教师在电子书包学生学习平台上依次布置以下任务。任务一:(1)收集汇总小组成员的身份证号码。(2)观察收集的身份证号,找一找有哪些相同的部分,有哪些不同的部分。(3)记录下你们组的发现和疑惑,上传到平台。任务二:(1)收集家庭成员(爸爸、妈妈、爷爷、奶奶等)的身份证号码 Teaching content People’s Education Press third grade on the volume of mathematics “synthesis and practice ” - “digital coding.” 【Teaching Record】 Fragment 1: Pre-class Activities - Using E-Books to Achieve Resource Convergence, Highlighting the Essence of Exchange Within a week of pre-class learning, teachers arrange the following tasks in turn on the E-bag student learning platform. Task 1: (1) collect the ID number of the panelist. (2) observe the collection of ID numbers, find what kind of the same part, what different parts. (3) record your group’s findings and doubts, upload to the platform. Task 2: (1) Collect the ID numbers of family members (father, mother, grandpa, grandma, etc.)