Every time a learner completes an Activity, their mastery level on the related Concept may change. 

The amount and direction of change (up or down) is based on many factors, such as whether the learner completed the Activity proficiently, and whether sufficient time has elapsed since they last increased a mastery level. 

Imagine that you have a Concept about identifying fire hazards. Within the Concept, you create six Activities.

A learner could complete all six Activities right away, but does this demonstrate that they have truly mastered the information? No. To achieve mastery, learners must be able to demonstrate proficiency over time

What Level of Mastery Do Learners Need to Attain?

The level of mastery learners must attain is based on the mastery goal you’ve set. If you want learners to have a deeper understanding of the material, set a higher mastery goal.