This math center is great for practicing the teen numbers and working with ten frames. Included are numeral cards 11-20. We included numeral 20 because it can be as tricky to learn as the teen numerals. Students may choose a numeral card and then use counters to build the number on the ten frame mats. Another option available are the ten frame mats with dots to give extra support for those teen numbers. A student response page is included. This math center features hearts and will make a great addition to your February math centers.