ASSESSMENTS Institutes and books based on our proven Assessing Math Concepts series... PROF DEVELOPMENT A complete listing of our institutes, seminars, and workshops... TEACHER CENTER An essential resource for teachers — including downloadable articles, materials, and links to additional professional organizations and information... New! Click here for information on Using the Assessing Math Concepts on the Palm! Kathy Richardson, Program Director Kathy Richardson, one of the nation's leading educators of elementary mathematics, is the author and developer of the Assessing Math Concepts series. She has spent over 30 years teaching classroom educators, working with elementary students, writing books, and developing teacher resource materials. Her Developing Number Concepts series is used by teachers and school districts nationwide. Her most recent work is the three book Understanding Number Concepts series — this series of stations is a set of 8 tasks that provide students with the meaningful practice necessary for developing an understanding of the underlying structure of numbers, number relationships, and operations. This series focuses on Place Value, Addition and Subtraction, and Decimals. Today she works as Program Director of Math Perspectives Teacher Development Center which she co-founded in Bellingham, Washington in 1998.