The University of Chicago School Mathematics Project: 3rd grade level
"...a rigorous PreK-6 curriculum used across the country. It is scientifically research-based and proven to build students' mathematical knowledge from the basics to higher-order thinking and critical problem solving." 452 pages.
"...a rigorous PreK-6 curriculum used across the country. It is scientifically research-based and proven to build students' mathematical knowledge from the basics to higher-order thinking and critical problem solving." 452 pages.
