It's All Connected: the Power of Proportional Reasoning to Understand Mathematics Concepts, Grades 6-8

It’s All Connected provides teachers of mathematics the support they need to improve their instruction. This in-demand collection of lessons for grades 6–8 explores proportionality, proportional relationships, and proportional reasoning, acknowledging that the ability to reason proportionally is crucial in the middle school mathematics curriculum. The lessons support teachers and students in thinking of proportionality as the big idea that connects across all strands.