I created this independent center to be a resource that students could use as they are learning that each teen number (11-19) is a group of ten and some more. This multi-sensory center allows students a visual representation of the quantity and the numeral together on each page. I like how these learning mats can be printed in color, laminated, and used over and over again. The children can also practice writing the numbers using dry erase markers on the laminated copies. After your students cover the numbers with unifix cubes (or any fun material), challenge them to sort and count the different colors they used. I hope these mats prove to be a favorite!