Check out Melissa and Doug - a very successful manufacturer of developmental toys from the US. They make toys for children from birth...these charts are suitable for children from aged four. They are fantastically motivating for children to build up rewards to get a treat at the end of the week! The monthly chart helps your child to learn the days of the week and months of the year in a very easy format. Check out the Melissa and doug range at www.butterfliesanddragons.co.uk. Good prices too.