My daughter has been in the process of going through 6th grade Math Mission. When she tried to take the Course Challenge yesterday at the first attempt she scored 26/28. Since she wanted to get 100% correct results, she re took the challenge multiple times. She finally got 100% but post which lost her mastery points and her progress for the units are now showing in complete status. Is that a glitch in the system or is it expected? This doesn't appear fair for a student who has mastered all the skills of all the units (100%), takes the course challenge (100%) and her progress is demoted?
Any help in this matter will be greatly appreciated.