Don S. Balka, Ph.D., is a noted mathematics educator who has presented more than 2,000 workshops on the use of math manipulatives with PK-12 students at national and regional conferences of the National Council of Teachers of Mathematics and at in-service trainings in school districts throughout the United States and the world.
He is Professor Emeritus in the Mathematics Department at Saint Mary’s College, Notre Dame, Indiana. He is the author or co-author of numerous books for K-12 teachers, including Developing Algebraic Thinking with Number Tiles, Hands-On Math and Literature with Math Start, Exploring Geometry with Geofix, Working with Algebra Tiles, and Mathematics with Unifix Cubes. Balka is also a co-author on the Macmillan K-5 series, Math Connects and co-author with Ted Hull and Ruth Harbin Miles on four books published by Corwin Press.
He has served as a director of the National Council of Teachers of Mathematics and the National Council of Supervisors of Mathematics. In addition, he is president of TODOS: Mathematics for All and president of the School Science and Mathematics Association.