The purpose of this research study is to determine prospective teachers' opinions about concept cartoons integrated with modular instruction design. The research was conducted by using a descriptive method. The study group of the research included 4th grade students at (n=44) Marmara University Faculty of Technical Education Textile Education Department, taking a guidance course. The course was conducted by using the concept cartoons embedded in the modular instruction design. In the study, a survey form was used in order to obtain the prospective teachers opinions about modular instruction design and concept cartoons used in design.