In order for students to be successful in school, strong foundations are needed at the earliest grades. In a district in central Mississippi, many students entering public school from Head Start were not able to identify alphabet letters or produce letter sounds, based on results of the 2011 Standardized Test for the Assessment of Reading (STAR).…

In this paper, we describe our learning progressions approach to early algebra research that involves the coordination of a curricular framework, an instructional sequence, written assessments, and levels of sophistication describing the development of students' thinking. We focus in particular on what we have learning through this approach about…