The Keast house hold have set up a snack shop, Nathaniel and Sophia both have 50p a day. Each time the shop opens they use their money to buy a snack and when the money has gone...no more snacks! Healthy snacks are cheaper and of course the naughty snacks are more expensive. Mum has given appropriate coins to them so they can both achieve. No more asking for snacks and you get maths in too.