Choral counting with time, and why 60 isn't 100

Counting time uses the same never-erase choral counting routine as the other count tracks, with one twist none of the others have: time doesn't regroup by tens. Sixty seconds make a minute and sixty minutes make an hour, a base-60 system riding inside a track that otherwise counts by ones. Watch the seconds climb 55, 56, 57, 58, 59 and then roll the minute over to 0, not 60, and you've got the exact moment a class needs to notice that this "counting by ones" doesn't behave like counting by ones anywhere else in math. Count backward through that same boundary too. Watching a minute break back apart into 59 seconds instead of borrowing a ten is just as informative as building it forward.