Think Talk Write (TTW) is developed and built through the activities of thinking, talking and writing involve a problem solving in small groups. This method helps the students to actively participate, think critically, and work together and provide the opportunities for the students to work alone and cooperate with others. Many factors can affect the students’ creative thinking ability. These factors can be grouped into two major parts, namely internal factors and external factors. The internal factors are factors that come from within the students namely the ability, intelligence, attitude, motivation, interests and others. Students at Primary School (SD) No. 060856 Medan gets TTW method is 80,67 and on the conventional class score average is 68,97. Thus the implementation of TTW and conventional learning methods affect the students’ ability in thinking creatively. The students’ ability in thinking creatively has a tcount (4,506)> ttable (1,671) and sig.2-tailed (0,000)> α=0,05 so H0 is rejected. Based on the results of these calculations, it can be put forward the conclusion that the two classes have the different average ability of thinking creatively.
Keywords: Conventional Class, Primary School, Think Talk Write, creative thinking