About IOKU KANA
About MITSUNAGA NORIAKI
About TODA YASUO
About TANEDA MASATSUGU
About 大阪教育大学紀要 人文社会科学・自然科学
About phototransistor
About colorimeter
About turbidimeter
About accuracy
About stability
About starch
About content(quantity)
About science education
About teaching material
About teaching material development
About 澱粉含有量
About colorimeter
About science education
About Science and engineering education
About Chemical education
About フォトトランジスタ
About 簡易
About 比色計
About 教材化