Howdy Teachers! Here is another ten frame math center for your lil' buckaroos. Your little cowboys and cowgirls will get practice with teen numbers 11-20. (We included number 20 because learning 20 can be as tricky as the teens.) Included are numeral cards for 11-20, blank ten frame mats, and ten frame mats with corresponding dots for your little ones who need extra support. A student response page is also included. This math center will work nicely with your cowboy/cowgirl unit or with a wild, wild west theme. It also makes a great anytime center. Yee Haw! Math is fun!