Published: 2026-08-19

Editorial

Editorial

Editorial Team Journal of Thailand Society of Mathematics Education

# ก-ข

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Academic Articles

Figural Representations on Theory of Mathematical Representations: Operational Diagram and Ways to See

Masami Isoda; Jitlada Jaikla, chanika Senawongsa, Nisakorn Boonsena, Jensamut Saengphan, Pimpaka Intaros

# 1 - 28

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Figural Representations on Theory of Mathematical Representations: Operational Diagram and Ways to See

Masami Isoda

# 29 - 52

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TLSOA as an Innovative Idea for a School-based Professional Learning Community

Maitree Inprasitha

# 53 - 64

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Research article

Trends in Statistics Education Research at the School Level in Thailand

ธนะชาติ อนุนิวัฒน์

# 65 - 84

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The Historical Development of Well-being: the Transition from Economic Well-being to Mathematical Well-being

Anucha Koyata, Maitree Inprasitha, Narumon Changsri

# 85 - 107

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Classroom Narratives

How Do We Know It's Proportional? : Learning Ratio in a Primary Mathematics Classroom

เกษม เปรมประยูร, สุวรรณี เปลี่ยนรัมย์

# 108 - 114

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Book Review

Processes of Problem Solving in School Mathematics

Rachada Chaovasetthakul

# 115 - 119

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