Elephant is too heavy to play with Mouse on the seesaw. Their friends can help, but will it be enough to get Elephant''s feet off the ground? A great deal (of Elephant) hangs in the balance in this hilarious introduction to the maths concept of weight.With engaging artwork and a very funny story, readers won''t even realize that they''re learning something while they laugh along with the animal friends!Features fun activities at the back to explore the topics further.