Mathcasts
Lesson 12-4, Area of Squares and Rectangles
Additional resources: Pearson Envision Math Text pages 304-305
Lesson 8-5, Quadrilaterals, Hierarchy Diagrams
Additional resources: Pearson Envision Math Text pages 210-211
Lesson 8-2, Measuring and Classifying Angles
Additional resources: Pearson Envision Math Text pages 204-205