International Journal of Academic and Applied Research (IJAAR)   Year: 2022 | Volume: 6 | Issue: 1 | Page No.: 50-53 Development of Infographic-Based Textbooks for Mathematics Learning Materials in Class IV Sdn Sebaung 1 Probolinggo. Download PDF Wahyu Agustya M. Sulthon Masyhud, Nuriman Abstract: The use of infographics as learning media can affect students' academic performance in the cognitive domain. The problem is how to develop an effective infographic-based textbook for learning mathematics with flat shapes for 4th grade students so that effective learning outcomes can be obtained? For this reason, development research was carried out on 4th grade elementary school students at Sebaung 1 State Elementary School Probolinggo-Indonesia. The objectives of this research are; (1) produce an effective infographic-based textbook for learning mathematics on flat shapes for 4th grade elementary school students; and (2) describe the effectiveness of infographic-based textbooks for learning mathematics on flat shapes for 4th grade elementary school students. The research procedure is carried out through the following stages: (1) preliminary study and problem formulation; (2) data collection; (3) product design; (4) design validation; (5) design revision; (6) product trial; (7) product revision; (8) trial use; (9) product revision; and (10) mass production. The results showed that (1) the results of the development of information-based textbooks were very effective for learning mathematics in 4th grade elementary school students, and (2) the indicators of the effectiveness of the developed textbooks were: (a) the validity of the product was achieved at 86.3 with the category very feasible, (2) the relative effectiveness of textbooks obtained by 44.7% is included in the moderate effectiveness category, and the results of the student response questionnaire with a value of 95.53 fall into the very effective criteria.