Kathleen Cotter Clayton is the daughter of Dr. Joan A. Cotter, author and creator of the RightStartTM Mathematics program. Kathleen has a degree in Home Economics and two Masters Degrees. Kathleen is the mother of four children; three have graduated from college and the youngest still in college. Kathleen is responsible for curriculum development, marketing, sales, and office management. She travels all across the US and Canada, sharing the mission of helping children understand, apply, and enjoy mathematics. In her spare time, Kathleen designs and creates quilts, travels, and is re-learning how to unicycle.