Students move on an individually customized, fluid schedule among learning modalities.

This model gives students and teachers more control over how they use their time: teachers have time to work individually with students because they are generally no longer standing in front of a class delivering content, and students can move through the lessons and materials at their own pace.

This flexibility is what separates the Flex model from the Rotation models. In the Flex model, students do not transition between learning modalities at the same time. Instead, students operate independently and receive help from teachers when needed.

Because of the heavy emphasis on student autonomy, the role of a teacher changes in a Flex model. Instead of delivering instruction to whole groups, teachers spend most of their time providing face-to-face tutoring, guidance, and enrichment to supplement online lessons.