Each level has its own set of mastery criteria. Mastery criteria are a set of requirements students must meet before the program marks a level as Mastered.
Students must meet both of the following requirements during a single test to master a level:
A time score that meets or beats the mastery time set for the level
You cannot change the accuracy requirement, but you can change the mastery time that is set for the level.
The default mastery time is two minutes on tests at all levels. You can adjust the mastery time at each level so that it matches your students' capabilities. Research shows that three seconds per fact (two minutes on a 40-problem test) is the benchmark for mastering math facts in the lower levels. Students in 5th level and above may be able to average two seconds per fact on a 40-problem test.
If you measure the total time it takes a student to complete a practice or test session (completion time), you may notice a difference between your time measurement and the reported time score. The reported time score is the sum of the problem response times, not the overall elapsed time. The program measures only the time it takes a student to respond to a problem. The time required to display the problem and the answer is not included in the reported time score the student receives.
Example: A session that takes the student 3 minutes to complete could have a reported time score of 2 minutes 20 seconds.