Before and after Cross Country, my class did the beep test. My teacher put on a tape, starting with Round 1 #1 - #2, right up to somewhere around Round 15. The tape beeped every so often, and we had to run to the end of the court before it beeped again. We ran and ran, back and forth, back and forth, until the beep got there first. The first time we did it, before Cross Country, on the second of July, which was a cool day with slightly wet, therefore slippery, concrete, I got up to Level 5.
The second time we did the beep test, after Cross Country, on the thirteenth of August, which was a very hot day with a slight breeze, I got up to Level 11, #2! I improved by approximately 6 levels!