The hybrid flexible, or HyFlex, course format is an instructional approach that combines face-to-face (F2F) and online learning. Each class session and learning activity is offered in-person, synchronously online, and asynchronously online. Students can decide how to participate. The flexibility of the HyFlex model demonstrates a commitment to student success, and that flexibility can also enable institutions to maintain educational and research activities during a disruption. The 7 Things You Should Know About... series from the EDUCAUSE Learning Initiative (ELI) provides concise information on emerging learning technologies.
https://library.educause.edu/resources/2020/7/7-things-you-should-know-about-the-hyflex-course-model
