《Letts Fun Learning - First Counting Age 3-4》 is bursting with quizzes, games and rhymes to help 3-4 year olds practise and develop their counting skills in a playful and stimulating way.《Letts Fun Learning - First Counting Age 3-4》 is bursting with quizzes, games and rhymes to help 3-4 year olds practise and develop their counting skills in a playful and stimulating way.