Abstract
This study examines the use of creative teaching materials in building students' creative thinking skills. The research sample was 53 students of class X one of the public high schools in Mataram. Instruments for learning activities in the form of creative teaching materials modified by the Writing to Teach approach, student books and data collection instruments. Creative dispositions were measured using closed questionnaires on inquisitive, persistent, imaginative, collaborative and disciplined aspects. Students' creative thinking skills were measured using a creative thinking skills test in the form of five essay questions on viruses. The results of the study show that the use of creative teaching materials triggers creative dispositions in the five aspects of inquisitive, persistent, imaginative, collaborative and disciplined aspects, also improves creative thinking skills where the average score of classes using creative teaching materials is higher than the average score in classes using books student package. Students' creative thinking skills improve in all aspects of creative thinking skills (flexibility, fluency, elaboration and originality). This shows that the use of creative teaching materials provides better conditions for the development of students' creative thinking skills.