00639cam a2200217Ia 4500 ocm50954135 OCoLC 20060601030245.0 021107s2003 caua 001 0 eng d 9781559534598 1559534591 516 Serra, Michael. Discovering geometry : an investigative approach / Michael Serra. 3rd ed. Emeryville, CA : Key Curriculum Press, c2003. xiv, 767 p. : col. ill. ; 29 cm. Discovering mathematics Includes index. Geometry Study and teaching (Secondary) 2467 2467