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教育システム情報学会","subitem_rights_language":"ja"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"算数文章題","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"全体部分図","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"空間表現","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"数量の役割","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"自己説明活動","subitem_subject_language":"ja","subitem_subject_scheme":"Other"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"小学生が学習する和差算数文章題は，問題文・全体部分図・数式のそれぞれに相互変換可能であり，この相互変換可能であることが学習者の理解を表す指標となっているとされている．本研究ではこの相互変換に対する自己説明の実現を目指し，各表現形式における各部分に対して，三文構成モデルに基づく「数量の役割」を対応付ける活動を行わせることで，相互変換の理由づけを行わせるタスクを設計・実装し，小学校での実践的利用を通して有効性を示す．","subitem_description_language":"ja"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"教育システム情報学会","subitem_publisher_language":"ja"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_1617186920753":{"attribute_name":"Source 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