Start little and learn big with Lift-the-Flap Opposites. Big and small, fast and slow, happy and sad... Lift the flaps as you explore and discover all the opposites in your world. With over 30 flaps inside, this adorable book is perfect for pre-schoolers to learn about opposites.Start little and learn big with Lift-the-Flap Opposites. Big and small, fast and slow, happy and sad... Lift the flaps as you explore and discover all the opposites in your world. With over 30 flaps inside, this adorable book is perfect for pre-schoolers to learn about opposites.