One of the major themes of The Cat at the Wall is perspective and how our point of view shades how we see things. A good way to illustrate this idea to students is by showing them a few classic optical illusions. Search “optical illusions for kids” on the internet and print out several to share. Ones that are particularly effective include “The Rubin Vase”, “My Wife and My Mother-in-Law” and “The Rabbit-Duck”. These illusions contain more than one image, so while everyone is looking at the same picture, there is more than one image that they see. It is an impactful way to show that there can be more than one way to look at something.