Our Challenges are proving to be a great success as they allow children to explore mathematical concepts and extend their thinking. Here is a great little investigation for young children, which helps with counting and logical thinking. Using just the 1p, 2p, 5p, 10p and 20p coins what different totals can you have with just two coins? At first it is suggested that you make a rule that says that you can't have two of the same coin. This limits the scope of the challenge, but if children deal successfully with this there is no reason why they can't investigate totals that include using the same coin twice, or even increasing the number of coins to 3. Go to our 2 coin challenge