Lesson video for 'Solve ratio problems using a tape diagram'

This lesson builds on students' understanding of ratios by using a recipe to calculate unit ratios from fractional amounts. Students use ratios and proportional reasoning to correct a cooking error which relates to unit ratios. Students use strategies ...
 Created by Cheryl Shay

Big Ideas: Ratios are multiplicative relationships between two or more quantities that are related. Ratios describe a relationship that remains constant as total quantities are increased or decreased. Ratio relationships can be described as parttopar...
 Created by Terri McComb

Big Ideas: Ratio reasoning can be used to generate equivalent ratios to solve ratio problems. Solving ratio problems requires attending to the relationships between part:part and part:total quantities. In this lesson, students will apply their understa...
 Created by Terri McComb

Big Ideas: Ratio and rates are multiplicative comparisons between two or more quantities, or they are a joining of those quantities in a composed unit. Unit rates answer the question how many (or how much) for 1. Unit rates are easier for us to general...
 Created by Barbara Delaney

Comparing speeds by using unit rates Archived
Big Ideas: Unit rates make it easy to compare rates of speed. Tape diagrams are a visual tool that can be used to compare unit rates when one of the units is distance. This lesson builds upon an understanding of equivalent fractions and ratio reasoning...
 Created by Tifin Calcagni