The purposes of this research were to 1) compare the learning achievement in visual arts subject of Matthayomsuksa 3 students before and after learning by Synectics model; 2) compare creativity in creating visual arts of students in Mathayomsuksa 3 students before and after learning by Synectics model. The samples were consisted of 25 Matthayomsuksa 3 students in the first semester of academic year 2022 of Somsamedwittaya School in Satuek District, Buriram Province, under Office of Buriram Secondary Educational Service Area, selected through Cluster Random Sampling method. The instruments of this study included 1) 6 lesson plans; 2) a 30-item with 4 multiple-choice learning achievement test; 3) Torrance Test of Creativity Thinking Figural Form A. The statistics for data analysis included percentage, mean, and standard deviation. The hypothesis was tested by using the dependent sample t-test. The results of this research were as follows: 1. The learning achievement after learning by Synectics model was higher than before learning with statistically significant difference of .05 level. 2. The creativity of the students learning by Synectics model was higher than before learning with statistically significant difference of .05 level.