Hidden Numbers Game
Cut out 10 cards with different colors of firm paper and write in each card a number (from 1 to 10).
Hide them in secret corners and ask your child to fetch each number separately, and whenever he finds a number tell him (her) the number he finds together with its color.
Let him (her) find all the numbers (from 1 to 10). That way he (she) will learn numbers & colors, meanwhile it will increase his (her) observation skill.