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{"embedding_dim": 1024, "data": [{"__id__": "rel-e49a902ae41995414f26180b853de9fd", "__created_at__": 1752674586, "src_id": "东北师范大学数学与统计学院", "tgt_id": "史宁中", "content": "东北师范大学数学与统计学院\t史宁中\nacademic affiliation,research contribution\nThe author is affiliated with this institution, contributing to mathematics education research.", "source_id": "chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-dfd2559ca1e6e9238cc1a4505159ce2b", "__created_at__": 1752674586, "src_id": "小学数学教学中的若干问题", "tgt_id": "数的认识", "content": "小学数学教学中的若干问题\t数的认识\ncurriculum focus,educational content\nThe text includes a detailed section on understanding numbers, forming a core part of the discussion.", "source_id": "chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-f1791753b9cafa231fbeb433baca52a2", "__created_at__": 1752674586, "src_id": "小学数学教学中的若干问题", "tgt_id": "数的运算", "content": "小学数学教学中的若干问题\t数的运算\nfoundational skills,mathematical operations\nThe text dedicates a section to arithmetic operations, highlighting their importance in elementary math.", "source_id": "chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-ab8d800bdb33ac6ea1fc2649216dfb2c", "__created_at__": 1752674586, "src_id": "图形与几何", "tgt_id": "小学数学教学中的若干问题", "content": "图形与几何\t小学数学教学中的若干问题\ngeometry education,spatial reasoning\nGeometry is a key section in the text, addressing spatial concepts and their educational value.", "source_id": "chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-744404faca5fad72aba3522edd8c71c7", "__created_at__": 1752674586, "src_id": "小学数学教学中的若干问题", "tgt_id": "统计与概率", "content": "小学数学教学中的若干问题\t统计与概率\ndata literacy,statistical concepts\nThe text includes a section on statistics and probability, emphasizing data analysis in elementary education.", "source_id": "chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-93320dab568cd081c124e6d936dab3ee", "__created_at__": 1752674586, "src_id": "史宁中", "tgt_id": "小学数学教学中的若干问题", "content": "史宁中\t小学数学教学中的若干问题\nacademic work,authorship\nThe author is the creator of this comprehensive work on elementary mathematics education.", "source_id": "chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-4d974eca58326771897b4f2dfa34e659", "__created_at__": 1752674586, "src_id": "数量", "tgt_id": "自然数", "content": "数量\t自然数\nabstraction,abstraction process,foundation,generalization\nNatural numbers abstract away from specific quantities while retaining general counting properties.<SEP>Natural numbers are derived from the abstraction of quantities in the real world.", "source_id": "chunk-2b803f52811c47a36d9c3c7c9900a33c<SEP>chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-33f4060163e25cdaf19eab3175a76e46", "__created_at__": 1752674586, "src_id": "自然数", "tgt_id": "负数", "content": "自然数\t负数\nconceptual understanding,extension,number system,numerical contrast\nNegative numbers are defined in relation to natural numbers with opposite meanings.<SEP>自然数作为正数的基础，与负数形成对比，帮助学生理解负数是正数的反向表示。", "source_id": "chunk-ed3f9d4ba17af9bb577054436e6b8e53<SEP>chunk-077f3fe9070c0d50896deaf218c86bde", "file_path": "unknown_source"}, {"__id__": "rel-c6d26f1fbcb51101423e425630b90e79", "__created_at__": 1752674586, "src_id": "减法", "tgt_id": "加法", "content": "减法\t加法\narithmetic,inverse operations,运算关系,逆运算\nSubtraction is defined as the inverse operation of addition in the set of integers
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