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! Sheryl Russell, Administrative Director As Co-Founder and Administrative Director of Math Perspectives, Sheryl Russell oversees all of the day-to-day operations of the company. With her years of organizational and management experience, she works with School and District Administrators to schedule and plan their professional development plans with Math Perspectives.