Stone Activities for Kids - Happy Hooligans. *Always pack a sharpy and you can draw on rocks "on the go." Or when the kiddos find the ones they wish to use, just whip out the marker and have your kids help draw on the rocks.
Hide numbers throughout house or yard. Children hunt, find and arrange in order before timer rings. You could use this so many ways - larger numbers, equivalent fractions, rounding.Learn Through Movement - Number Hunt Math Game.