Christy Needham began her career as a high school math teacher. She went on to develop the math materials and curriculum for a major worldwide education company. She enjoys volunteering with math professional development within the community and at her children s school. She currently resides in Simi Valley, California.
"""Excellent supplements for standard textbooks, offering readers friendly introductions to foundational concepts while using plain language, clear examples, and end-of-chapter quizzes to reinforce key concepts."" —Booklist"