Numbers 1-20 is a counting board that can be used for lots of different counting and number activities. Tap on a number to change the color, from black to red to white.
Tap on the colored circles on the left hand side to change the colours of all of the numbers. Drag the counters up from the bottom of the screen to hide or highlight numbers.
This is a great, open ended educational activity for children who are becoming more confident with numbers.