摘要：One of the professional competences of mathematics teacher is the ability of mathematical problem solving. At high school level,the increase of this ability is influenced by creativity. It means,if the students’ creativity is getting higher,their ability of mathematical problem solving is also progressively better, conversely. The applying of Treffinger’s model in mathematics teaching and learning at high school,have been proven can develop the students’ creativity. In this research,Treffinger’s model is applied to students prepared for being mathematics teacher as a mean to improve their ability of mathematical problem solving. The sampels consist of 32 students of mathematics educational department,taken by purposive sampling. The data collecting uses instrument in the form of test about the ability of mathematical problem solving. The result of this research indicates that the applying of Treffinger’s model is significant influencing the increase of the mathematical problem solving’s ability. It is caused by the fact that the students have their own variation,creativity,and experience so that can be developed swiftly in mathematical problem solving.
其他摘要：Salah satu kompetensi profesional guru matematika adalah kemampuan memecahkan masalah matematis. Di tingkat sekolah menengah,peningkatan kemampuan ini dipengaruhi oleh kreativitas. Artinya, jika kreativitas siswa semakin tinggi,maka kemampuan memecahkan m
其他关键词：Treffinger;kreativitas;pemecahan masalah matematis
