Believe it or not, highway numbers actually make sense. Here's the logic behind odd and even routes, and why the system isn't ...
I've long used this method myself - both for fall leaves and for the large seed pods the sweetgum tree in my yard drops.
1. Fast and Slow Piles. This works well as a starting or closing activity. Students sort math fact cards into fast and slow piles. This visual way of tracking facts highlights which facts come ...