TY - BOOK AU - Shell-Gellasch, Amy. AU - Amy Shell-Gellasch TI - Hands on history a resource for teaching mathematics SN - 9780883851821 U1 - 510.71 SHE PY - 2007/// CY - Washington PB - : The Mathematical Assiociation of America KW - Teaching mathematics KW - Mathematics KW - Resource for teaching ER -