Spot the difference lotto

This game takes the traditional spot the difference puzzle and turns it into a lotto game. The game comes with four double-sided player boards, each with space for nine tiles. The game is played as lotto - draw a tile and find the matching board - but instead of spotting a picture and finding the relevant board, you're spotting the difference and finding the relevant board. The differences aim to teach pre-reading and pre-maths skills. On the easy side each board contains nine almost identical pictures, but with slight differences - such as different numbers of balls juggled by the clown, or a different animal in the window of the house, or a different arrangement of colours on the kite. On the hard side each board contains nine shapes, each coloured in the four primary colours, but with different arrangements of the four colours.