Examine fourth graders’ thinking about the unit, partitioning, order, and equivalence on the number line and consider ways to orchestrate mathematical discussions through the Five Practices.
Susan Ahrendt, Debra Monson, and Kathleen Cramer
Caroline Byrd Hornburg, Heather Brletic-Shipley, Julia M. Matthews, and Nicole M. McNeil
Modify arithmetic problem formats to make the relational equation structure more transparent. We describe this practice and three additional evidence-based practices: (1) introducing the equal sign outside of arithmetic, (2) concreteness fading activities, and (3) comparing and explaining different problem formats and problem-solving strategies.
Beth L. MacDonald, Diana L. Moss,, and Jessica H. Hunt
In this article, we explore how playing with dominoes not only requires students to count but also to subitize when constructing number and operations.