share/ccsc/uos/resources/math/gr3_solve_problems_involving_the_four_operations_identify Teacher Notes share/ccsc/uos/resources/math/gr1_reason_with_shapes_and_their_attributes Grade 1: Unit G. A. 1-3, Reason with shapes and their attributes share/ccsc/uos/resources/math/hsGeometry_Unit_3 Geometry Unit 3 Snap Shot directory share ccsc |