Kathleen Cotter Clayton is the daughter of Dr. Joan A. Cotter, author and developer of the RightStart™ Mathematics program. Kathleen is involved with curriculum development and has written or co-authored 17 manuals. She has a degree in Home Economics and a minor in Business from the University of Minnesota and has two master’s degrees from the University of Mary in Bismarck, North Dakota. Kathleen and her husband Steve have six adult children and six delightful grandchildren. She teaches online middle-school classes, designs and creates mathematical quilts, loves to travel, speaks across the United States and Canada, and recently spoke at Cambridge University in England, sharing the mission to help children understand, apply, and enjoy mathematics.