I step outside with my husband and our 2-½ year old granddaughter. It’s a chilly spring evening and we want to release some wiggles before bedtime. I’ve watched the spring color begin at the ground and move up. The grass turned first, then the smaller trees sprouted green buds or pink and white blossoms. The 60’ trees are still bare. Next month green will be everywhere. But tonight the earth is still in transition.  We walk down the stairs to the patio and draw a hopscotch grid with chalk. We take turns hopping. The game transports me to a schoolyard in Oklahoma, where I’m wearing PF flyers and knee socks.…