Looking for a preschool or kindergarten activity to help your students practice number recognition 1-20 and one-to-one correspondence? The print version works great in math centers and the digital Boom deck for intervention or computer center. Each puzzle pair has one number (1-20) and an image of a zoo animal with the amount of the corresponding number. The zoo animals are: elephant, rhino, kangaroo, zebra, parrot, alligator, lion, fox, monkey, leopard, hippo, giraffe, frog, koala, sloth, pa