This is an easy independent math center that has two tiers. Print all the animal cards. For students who are concentrating on numbers 1-10, attach the cards with quantities 1-10 to one color of cardstock/construction paper. For students who are working on numbers 11-20, attach the cards with quantities 11-20 to a different color of cardstock/construction paper. Then instruct your students, based on their needs, which color of cards they are to look for and record. Each recording page has a number line that corresponds to the range of numbers students will look for (0-10 and 0-20).