算数・数学間違い探し 芳沢光雄 ﾖｼｻﾞﾜﾐﾂｵ 講談社 :9784065305393

**数学者 芳沢光雄の活躍**
「数学を学ぶことで、世界がより明確になる」
芳沢光雄は日本の数学者。理学博士。桜美林大学名誉教授。専門は数学・数学教育。 曽祖父は元内閣総理大臣の犬養毅で、祖父は元外務大臣の芳澤謙吉。元国連難民高等弁務官の緒方貞子や東京大学名誉教授の川島裕はいとこ。 外務事務次官や駐米大使を務めた井口貞夫はおじ。
**活動**
数学研究では置換群と組合せ数学が専門で、数学教育では証明教育を中心とした「考えて論述する」教育の重要性を訴えている。著書『反「ゆとり教育」奮戦記』には全国各地の小・中・高校への出前授業や教員研修会での講師のほか、一般向けの講演会のエピソードも記述されている。
Q：何をされた方ですか？
A：数学と数学教育に尽くしたこと
Q：有名な作品は何ですか？
A：「反「ゆとり教育」奮戦記」と「置換群から学ぶ組合せ構造」
English Summary
**Activities of mathematician Mitsuo Yoshizawa**
“Learning mathematics makes the world clearer.”
Mitsuo Yoshizawa is a Japanese mathematician. Doctor of Science. Professor Emeritus of Oberlin University. Specializes in mathematics and mathematics education. His great-grandfather was Takeshi Inukai, a former Prime Minister, and his grandfather was Kenkichi Yoshizawa, a former Minister of Foreign Affairs. Former United Nations High Commissioner for Refugees Sadako Ogata and University of Tokyo professor emeritus Hiroshi Kawashima are cousins. His uncle is Sadao Iguchi, who served as Vice-Minister of Foreign Affairs and Ambassador to the United States.
**Activities**
In mathematics research, he specializes in permutation groups and combinatorial mathematics, and in mathematics education, he emphasizes the importance of ``thinking and reasoning'' education centered on proof education. His book, ``A Record of Struggles Against Yutori Education,'' includes stories of his visits to elementary, junior high, and high schools across the country, his lectures at teacher training sessions, and his lectures for the general public.
Q: What did you do?
Devotion to mathematics and mathematics education
Q: What are your famous works?
“A story of the struggle against “Yutori Education”” and “Learning combinatorial structure from permutation groups”
Wikipedia:芳沢光雄