Introduction

I am Sommay SHINGPHACHANH, I am from Laos. In 2006, I got bachelor degree of mathematics in the faculty of education at National University of Laos. Then I work as mathematics teacher in a Teacher Training College up to present. In 2012, I got master degree from Osaka university, Japan. In 2017, I am first year of doctor student at IDEC, Hiroshima university, Japan. My research interest is on the area of improving mathematics teacher education quality, lesson study, and teacher professional development.