Ontario math teachers LOVE this Proportional Reasoning unit to teach writing ratios, comparing ratios, simplifying ratios, comparing unit rates, and solving percentage proportions. It contains Google lessons, activities, assessments, and more.It contains activities that require students to use and develop their Knowledge, Application, Thinking, and Communication skills in a way that will prepare them for success in grade 9.Please Note: In order to align our units with the 2020 Curriculum changes