Alabama Learning Exchange
Alex: What Do We Have in Common?
This inquiry lesson explores the definitions of quadrilaterals and the properties of the diagonals of quadrilaterals to classify quadrilaterals. Students will work cooperatively to justify conclusions. This lesson plan was created by...
Khan Academy
Khan Academy: Analyze Quadrilaterals
Classify and compare rectangles, rhombuses, and squares.
ClassFlow
Class Flow: Quadrilaterals
[Free Registration/Login Required] This flipchart introduces students to quadrilaterals and how to classify them.
Alabama Learning Exchange
Alex: Quadrilaterals
This is an inquiry lesson used to review Algebra 1 objectives by applying them to geometry concepts. Learners explore the properties of quadrilaterals and classify them by definition. This lesson can be use in geometry classes. Students...
GeoGebra
Geogebra: Copy of Classify Two Dimensional Figures
User will drag the vertices of the quadrilaterals to decide on the best possible classification.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Shape Classification
Investigate the properties of triangles, quadrilaterals, and regular polygons using this interactive Learn Alberta math resource. Students are able to practice classifying shapes based on their different properties. Be sure to follow the...
CK-12 Foundation
Ck 12: Geometry: Polygon Classification
[Free Registration/Login may be required to access all resource tools.] Recognize and classify different polygons
National Council of Teachers of Mathematics
Nctm: Illuminations: Cutting Corners
Students will use their knowledge of plane figure attributes to create and view shapes by cutting and rotating shapes to stimulate discussions on names and attributes of various shapes they do not regularly encounter.
BBC
Bbc: Bitesize: Maths: 2 D Shapes
Learn about the properties of 2-D shapes: circles, triangles, polygons, and quadrilaterals. Includes information, video, and examples about each, with games and quizzes for reinforcement.
CK-12 Foundation
Ck 12: Parallelogram Classification
[Free Registration/Login Required] Students will use the classify different shapes by changing the points on the given shape. Click learn more to watch a video and click challenge me to answer a practice question.
NumberNut
Number Nut: Shapes, Symbols, and Colors: 2 D Shapes
Did you know that two-dimensional shapes are also called polygons? This lesson describes the various 2-D shapes and includes two interactive games to reinforce skills.