"Yasuhisa;Hirai|","文科系的な話題を表現できる数学","","1341-3155","2019-11-22","26","","","","","","","https://ousar.lib.okayama-u.ac.jp/57518",""
    "Yasuhisa;Hirai|","巻頭言","","1341-3155","2016-10-22","23","","","","","","","https://ousar.lib.okayama-u.ac.jp/54726",""
    ";|","連立方程式をより深く考えるための教材","岡山大学算数・数学教育学会誌 : パピルス","1341-3155","2011-10-30","18","","69","75","","","","https://ousar.lib.okayama-u.ac.jp/51205",""
    ";|","巻頭言　資料の活用を"活かせる"か?","岡山大学算数・数学教育学会誌 : パピルス","1341-3155","2012-10-27","19","","","","","","","https://ousar.lib.okayama-u.ac.jp/50557",""
    "Yasuhisa;Hirai|Tadashi;Nakamura|","正規確率計算アルゴリズム再考 : コンピュータ支援による2項近似アルゴリズム(1)","岡山大学大学院教育学研究科研究集録","1883-2423","2012-11-27","151","","93","107","","","","http://escholarship.lib.okayama-u.ac.jp/49021",""
    "Yasuhisa;Hirai|","加法・減法の逆思考問題についての一考察 : テープ図からの演算決定の難しさ","岡山大学教師教育開発センター紀要","2186-1323","2012-03-19","2","","102","111","","","","https://ousar.lib.okayama-u.ac.jp/48198",""
    "Yasuhisa;Hirai|","｢資料の整理｣の教材開発と指導実践～文字グラフによるデータ分類活動～","岡山大学大学院教育学研究科研究集録","1883-2423","2011-10-25","148","","31","38","","","","https://ousar.lib.okayama-u.ac.jp/47119",""
    "Yasuhisa;Hirai|","Fraction and decimal teaching : By comparison between Japanese and English textbooks","岡山大学教育学部研究集録","0471-4008","1987","76","1","115","118","","","","https://ousar.lib.okayama-u.ac.jp/10553",""
    "Yasuhisa;Hirai|","低学年のたし算・引き算でのシンボリックな操作について","岡山大学教育学部研究集録","0471-4008","1996","103","1","17","26","","","","https://ousar.lib.okayama-u.ac.jp/10061",""
    "Yasuhisa;Hirai|","Some Remarks on Class Interval of Histograms","岡山大学教育学部研究集録","0471-4008","1989","82","1","113","117","","","","https://ousar.lib.okayama-u.ac.jp/9696",""
    "Yasuhisa;Hirai|","算数・数学能力の成長期についての考察(I)","岡山大学教育学部研究集録","0471-4008","1990","83","1","175","181","","","","https://ousar.lib.okayama-u.ac.jp/9674",""
    "Yasuhisa;Hirai|","ある種の情報処理能力について(I)","岡山大学教育学部研究集録","0471-4008","1990","84","1","179","186","","","","https://ousar.lib.okayama-u.ac.jp/9647",""
    "Yasuhisa;Hirai|","数え足しによるたし算についての一考察 Fusonの分類を用いて","岡山大学教育学部研究集録","0471-4008","1991","87","1","97","102","","","","http://escholarship.lib.okayama-u.ac.jp/9578",""
    "Yasuhisa;Hirai|","子どものたし算ストラテジーについて 指を用いたストラテジーとCOMPOSITEレベル","岡山大学教育学部研究集録","0471-4008","1993","93","1","1","8","","","","https://ousar.lib.okayama-u.ac.jp/9482",""
    "Yasuhisa;Hirai|","子どものたし算におけるMemorized Factについて","岡山大学教育学部研究集録","0471-4008","1992","90","1","29","37","","","","https://ousar.lib.okayama-u.ac.jp/9425",""
    "Yasuhisa;Hirai|","子どものたし算ストラテジーについて 具体物がCOMPOSITEとなるレベルの子どもについて","岡山大学教育学部研究集録","0471-4008","1992","89","1","35","41","","","","https://ousar.lib.okayama-u.ac.jp/9403",""
    "Yasuhisa;Hirai|","子どものたし算における加数と被加数の交換について","岡山大学教育学部研究集録","0471-4008","1991","88","1","41","47","","","","https://ousar.lib.okayama-u.ac.jp/9386",""
    "Yasuhisa;Hirai|","主座標分析のP-S表への応用","岡山大学教育学部研究集録","0471-4008","1984","67","1","91","104","","","","https://ousar.lib.okayama-u.ac.jp/9243",""