This morning while T1 was still in teenage dreamland T2 and I got started on an activity. I cut out pictures of groceries and their prices from our weekly flyers. T2 sorted them into categories and we made a catalog. We filled our toy cash register with Canadian play money and I saved some for me and I would tell T2 what I wanted to buy and she would find it in the catalog, enter the price and tell me my total. Then I would pay and we would figure out the change she owed me. It was a great learning activity. T2 was amazed how quickly groceries add up!