On August 16th, 2025, the Mathematics Department of Sansaiwittayakom School organized a workshop on the use of the GSP program (The Geometer’s Sketchpad). The school was honored to have Associate Professor Dr. Ekkapong Duangdai from the Department of Mathematics and Statistics, Faculty of Science and Technology, Chiang Mai Rajabhat University, as the lecturer. The workshop was held at the Computer Laboratory of Sansaiwittayakom School.