How can polygons be used to create new polygons? Join Mr. Waldorf as he investigates halves, thirds, and fourths of shapes. For this lesson, you’ll need pattern blocks, or you can download the pattern blocks cut-outs for the lesson. You will also need paper and pencil. If you have access to a workbook, or a printer, we also suggest using the Lesson 8 Problem Set available using the link below the video.