Otto applies “forgetting pressure” to decrement a learner’s mastery over time.  The rate of forgetting is based on the learner’s mastery and strength of learning. 

Otto will automatically provide the learner with personalized activities to prevent mastery loss, and regain “lost” mastery. 

If Otto predicts that a learner will go below the mastery goal within the next week, it will notify the learner to complete a mastery moment. Keep in mind that setting the mastery goal at 5 will cause the learner to be prompted often.

ProTip: When you set a mastery goal, Otto will try to keep you at that minimum. Eventually, all learners will reach level 5, even if the mastery goal is set to a lower level. 

In this way, Otto can ensure long term retention.