To realize the expectation that students be creative and have a mathematical problem-solving ability is good, of course also needed a learning model based on creative problem solving. Among the learning model in question is the learning model Treffinger. This learning model will make students more active and make learning more fun activities. The author would like to see if an increase in the ability of students to solve problems that get Treffinger models better than the students who received the conventional model?. The method that I use in this study is the experimental method, that is by giving the treatment at two different sample classes. Based on the research results of the final test can be concluded there is an increase in the ability of students to solve problems that get better Treffinger models compared with the students who get a conventional model