- 2019 - 現在 Philippin Association of Lesson Study Advisor
- 2019 - 現在 フィリピン授業研究学会 顧問
- 2015/01 - 現在 SEAMEO-RECSAM カリキュラムアドバイザ
- 2015/01 - 現在 SEAMEO-RECSAM カリキュラムアドバイザ
- 2010 - 現在 World Association of Lesson Studies A member of the Council
- 2010 - 現在 国際授業研究学会 国際評議委員会委員
- 2008 - 現在 Colóquio de História e Tecnologia no Ensino da Matemática a Member of International Program Committee
- 2008 - 現在 国際学術委員会委員
- 2006 - 現在 APEC APEC Lesson Study Project(-2018), InMside Project (2019-)Project overseer
- 2006 - 現在 APEC APEC Lesson Study Project(-2018), InMside Project (2019-)Project overseer
- 2002 - 現在 History and Pedagogy of Mathematics A Member of Advisory Board
- 2002 - 現在 国際数学史教育学会 諮問委員会委員
- 1998 - 現在 Asian Technology Conference in Mathematics Member of IPC
- 1998 - 現在 国際学術委員会委員
- 2009 - 2015 JAPAN SOCIETY OF MATHEMATICAL EDUCATION Director (In Charged International Relation)
- 2009 - 2015 数学教育学会 国際部長(理事)
- 2005 - 2015 JAPAN SOCIETY OF MATHEMATICAL EDUCATION Director/ Chief Editor, Journal of JSME
- 2005 - 2015 JAPAN SOCIETY OF MATHEMATICAL EDUCATION Director/ Chief Editor, Journal of JSME
- 2011 - 2013 6th East Asia Regional Conference On Mathematics Education, A Member of Advisory Board
- 2011 - 2013 6th East Asia Regional Conference On Mathematics Education, A Member of Advisory Board
- 2008 - 2010 6th EUROPEAN SUMMER UNIVERSITY ON THE HISTORY AND EPISTEMOLOGY IN MATHEMATICS EDUCATION, a Member of International Scientific Program Committee
- 2007 - 2009 Japan Association of Educational Materials Director
- 2007 - 2009 Japan Association of Educational Materials Director
- 2007 - 2008 11th International Congress on Mathematical Education, Member, Survey Team 6 of the Plenary Session
- 2004 - 2008 JAPAN SOCIETY FOR SCIENCE EDUCATION Director
- 2004 - 2008 日本科学教育学会 理事
- 2003 - 2004 10th International Congress on Mathematical Education, Chair, Topic Study Group 2
- 2001 - 2003 International Conference in Teaching Mathematics Member of IPC
- 2001 - 2003 国際委員
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- 2023/03 - Pontifica Universidad Catolica de Valparaiso Honorary Professor, Pontifica Universidad Catolica de Valparaiso,Chile Contributed to mathematics education reform in Chile through lesson study and national textbook development with PUCV
- 2015/01 - Thailand Society of Mathematics Education Plaque of Application from the Thailand Society of Mathematics Education Contribution to the establishment of the Thailand Society of Mathematics Education (TSME)
- 2014/11 - University of Philippines Plaque of Recognition from UP NISMED, Philippines, at the 50th Anniversary Unselfishly shared his expertise on mathematics education for Philippines
- 2014/09 - Universidad San Ignacio de Loyola Honorary Professor, Universidad San Ignacio de Loyola, Peru Contribution for the Establishment of Grobal Standards in Education
- 2013/03 - University of Tsukuba 2012 BEST FACULTY MEMBER, University of Tsukuba, Japan Leading APEC Lesson Study Project for innovation of teacher education in the world
- 2012/09 - Consejo Nacional del Libro y la Lectura Resultados Programa de Adquisiciones de Libros de Autores Chilenos 2012/Consejo Naciional de la Cultura y las Artes El enfoque de resolución de problemas : en la enseñanza de la matemática
- 2011/12 - Khon Kaen University, Thailand h.c.PhD/Honorary Doctorate Degree of Philosophy (Mathematics Education) Awarded the Honorary Doctoral Degree of Philosophy (Mathematics Education) by His Majesty King Bhumibol Adulyadej
- 2011/12 - Khon Kaen University, Thailand Honorary Doctorate Degree of Philosophy (Mathematics Education),Kohn Kaen University, Thailand Awarded the Honorary Doctoral Degree of Philosophy (Mathematics Education) by His Majesty King Bhumibol Adulyadej
- 2010/06 - Japan Book Publishers Association, Japan Federation of Printing Industries Awarded by the President of Japan Book Publishers Association (In the Area of Natural Science) Edited by Masami Isoda, Maria G. Bartorini Bussi. Written by Takeshi Tabuchi, Masaru Sanuki, Masami Isoda (2009). Curves: Proper
- 2005/08 - Japan Audio Visual Education Association Awarded by the Minister of Education, Culture, Sports and Science. Edited by Masami Isoda. (2004). Math on Projector (Software). Tokyo: Uchida Yoko Co. LTD.
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World Association of Lesson Studies
, Colóquio de História e Tecnologia no Ensino da Matemática
, History and Pedagogy of Mathematics
, Asian Technology Conference in Mathematics
, JAPAN SOCIETY FOR SCIENCE EDUCATION
, 日本数学教育学会
, National Council of Teachers of Mathematics
, International Conference in Teaching Mathematics
, Japan Association of Educational Materials