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This study aims to develop calculus teaching materials based on Hybrid Learning. It can be used to prepare students with 21st century challenge. Hybrid Learning is the most logical change that develops naturally from a teaching and learning process that is influenced by technological progress. This learning has been able to answer challenges and opportunities for the development of innovations that are integrated with technology in education. This research is expected to help students in facing the learning process in the future. In addition, this research is also expected to help students prepare themselves to engage the workforce in accordance with the needs of work in the future. The target to be achieved in this study is to produce a calculus teaching material based on Hybrid Learning which satisfy valid, practical, and effective criteria. The method used in this research is the development of instructional materials used for the first time by Plomp. This development model consists of five phases, namely: (1) initial investigation phase, (2) design phase, (3) realization phase, (4) test phase, evaluation and revision, (5) implementation phase. The technique of data collection is done by observation, validation and readability test. While the data analysis techniques were carried out by descriptive quantitative and qualitative descriptive methods. In this study, the development of teaching materials has been carried out in the form of making a differential calculus video lecture for 14 meetings. Learning videos developed have met valid criteria according to experts. While for the practical and effective criteria, data collection has not been carried out considering the research subjects who will conduct lectures online have not been registered in the online system. Moreover, the validity criteria came from four experts consisting of 2 lecturers from the mathematics education group and 2 lecturers from the pure mathematics. Validators have stated the validity of learning videos.

Development of Teaching Materials; Hybrid Learning; Differential Calculus; 21st Century Challengge