We had some scrap cardboard left over from a box we had used last week, so I cut a tree shape from it for us to use in a leaf sorting game. At the park we collected two of each interesting leaf we coud find (from the ground where we could, and cut properly from the tree where we couldn't). One set of leaves I glued to cardboard and laminated, the other set I put in a large bowl and Bubble later attached them to the tree using Blutac. Once our tree was ready we used the laminated leaf cards and matched them to the ones on the tree. Bubble had to study both sets of leaves very closely because the differences in colour and shape between some of them was very subtle. We have kept our laminated leaves and take them to the park with us now to match them to the trees they came from.