Mathnasium of Mankato, Minnesota is an award winning franchise math learning center! Join our Team! Across North America and all over the world, Mathnasium Learning Centers are committed to teaching children math so that they understand it, master it, and love it. Our world-class curriculum is built upon the Mathnasium Method- the result of decades of hands-on instruction and development - and has changed the lives of children since 2002.