The focus of each Technology Solutions for Adult Basic Skills Challenges column begins with a common challenge facing adult basic skills practitioners. This article examines a technology solution to two large and related challenges: student engagement and student persistence, which, from a program or school perspective, is often described as student retention in or completion of a program. The technology solution that is being explored for these two problems is Flex learning models, specifically HyFlex and BlendFlex. HyFlex and BlendFlex are new models of teaching and learning made possible by digital technology. They offer adult learners more control to make courses fit the demands of their lives, especially when they are complicated by pandemics or natural disasters, when in-person learning may be difficult or impossible, and when shifting from in-person to remote learning must be easy and seamless.