MATH EXAMPLES--Teacher's Guide: Quadrilateral Classification Grade: 6 - 12 Copyright Year 2013 Format PDF
Video Transcript: Desmos Geometry Exploration: Quadrilateral Basics Grade: 9 - 12 Copyright Year 2020 Format PDF
Video Transcript: Desmos Geometry Exploration: Quadrilaterals with Parallel Sides Grade: 9 - 12 Copyright Year 2020 Format PDF
Video Transcript: Desmos Geometry Exploration: Quadrilaterals with Non-Parallel Sides Grade: 9 - 12 Copyright Year 2020 Format PDF
Google Earth Voyager Story: Quadrilateral Structures I Grade: 8 - 12 Copyright Year 2020 Format HTML5