Title: Investigations in number, data, and space
Description: Part of a K-5 mathematics curriculum, with curriculum units for classroom use and resources for teachers; the Investigations curriculum was developed at TERC, formerly Technical Education Research Centers.
Subjects: Textbooks, Mathematics, Arithmetic, Study and teaching (Elementary), Problems, exercises, Study and teaching (Primary), Arithmétique, Étude et enseignement (Primaire), Problèmes et exercices