This needs analysis aims to determine the teaching materials required by teachers on the circulatory system to improve students' critical thinking and collaboration skills at MTs Al Ittifaqiah. This research used a quantitative descriptive study; the research sample consisted of 80 class VIII MTs students and three science teachers. The instruments used are teacher and student questionnaires and documentation. The result analysis of student needs includes (1) teaching materials used (2) teaching materials that students like (3) learning methods used by teachers (4) complex material (5) learning outcomes and (6) developed 21st-century skills. The only teaching materials used by teachers are textbooks from publishers. The result of this research found that teachers at MTs Al Ittifaqiah need to learn video teaching materials based on the PBL model on the circulatory system to improve critical thinking and collaboration skills.