Khatbanjong, Suriyun, and Pawarisa Samalerk. 2022. “The Development of Mathematics Learning Activities on the Topic of Fraction Problems Using the KWDL Technique of Mathayomsuksa 1 Students”. Journal of Education Studies 50 (1). Bangkok, Thailand:EDUCU5001011 (12 pages) doi: 10.14456/educu.2022.11. https://so02.tci-thaijo.org/index.php/EDUCU/article/view/255402.