On July 18, 2018 Mr.Chiyameth Amornpolsomboon CEO of GOADs Book Co.,Ltd. the distributor of Goads Mathematics Secondary 1-3 Textbook and Workbook led the group of Xiamen International Book Co.,Ltd. the authors and publishers from Fujian, China to visit the teaching of Phrapathom Wittayalai School. Both Thai teachers and Chinese authors had exchanged knowledge and opinions about teaching mathematics and Chinese classroom. Thank you for the warm welcome by the directors, the teachers and students from Phrapathom Wittayalai School.