(Goblin is 4)
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Goblin is still a little unsure about his number symbols. He also has trouble counting past 13. He tends to jump around a lot in the teens. To help him with both I have been trying to expose him to numbers a bit more.
One morning after we read Eric Carle's book The Bad-tempered Ladybird I left the above invitation to play for Goblin. I asked him what the numbers said and then we stuck the corresponding numbers on the wings.
This is the pattern I used in case you want to do similar - one big black oval, and a same sized red oval with the top one third cut off and the bottom sliced down the middle - simples!