Engagement, Habit, and Retention

Learning takes repeated effort over months, and most learners stop long before they reach their goal. That makes retention the central problem of education-technology design, whether the learner is a commuter on a language app, a fourth-grader on an assigned mathematics product or an employee in a compliance course. This chapter covers how products grow, how they keep users, how to measure retention properly, and the tension at the centre of the field: the mechanics that maximise engagement do not always maximise learning.