For report NCEE 2012-4017 The Effects of Connected Mathematics 2 on Math Achievement in Grade 6 in the Mid-Atlantic Region http://ies.ed.gov/ncee/edlabs/projects/project.asp?ProjectID=25

This contains records from a rigorous experimental study of the effect of the Connected Mathematics Project 2 (CMP2) on the mathematics achievement and engagement of grade 6 students. CMP2 is designed to encourage students to be responsible for their mathematics learning by exploring different solution pathways, sharing their ideas with other students, listening to the ideas of others, and questioning each other. The study was conducted in 70 schools in the Mid-Atlantic region and contains information on mathematics achievement and engagement.