Classification or sorting

Classifying and sorting involves finding things that are the same, or alike, and grouping them by specific traits or attributes. For example, a bunch of animals can be grouped based on their color or type of animal. You can have young children classify anything, including blocks, leaves, plates, or toy cars. Once they have classified items, children can compare items further to learn more specific similarities and differences between items, both within and between matched groups.

It's important for the child not to be stuck with the one image of the object. Show him the diversity for the same type of animal (in this case)