Suan Sunandha
Rajabhat University Demonstration
School, led by Associate Professor Dr.
Sumalee Thienthongdee, Director of the
Demonstration School, congratulated the
school's young genius, Mr. Win
Thitipetkul, Grade 4, who won a silver
medal in the International Mathematical
Olympiad (IMGO) Competition, Academic
Year 2025, Ages 9-10, at the Rajaviniti
School Bangkok (Central Region)
examination
hall.