ALEX Resources

   View Standards     Standard(s): [MA2019] (5) 22 :

22. Classify quadrilaterals in a hierarchy based on properties.

[MA2019] (5) 21 :

21. Classify triangles according to side length (isosceles, equilateral, scalene) and angle measure (acute, obtuse, right, equiangular).

[MA2019] (5) 23 :

23. Explain that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.

Example: All rectangles have four right angles, and squares have four right angles, so squares are rectangles.

This interactive mathematics resource explores the properties of triangles, quadrilaterals, and regular polygons and allows students to classify shapes based on their properties.

This interactive has an "explore it" tool that could be used to teach attributes of 2D shapes, and also a "use it" Shape Guess game that students can practice identifying and sorting shapes according to their attributes.

This learning activity was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.

   View Standards     Standard(s): [MA2019] (5) 23 :

23. Explain that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.

Example: All rectangles have four right angles, and squares have four right angles, so squares are rectangles.

Exhibit your knowledge of 2D shapes and search for similar characteristics. This interactive diagram focuses on sorting polygons by common properties and then you select the correct label for each section of the Venn Diagram.

   View Standards     Standard(s): [MA2019] (5) 22 :

22. Classify quadrilaterals in a hierarchy based on properties.

[MA2019] (5) 23 :

23. Explain that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.

Example: All rectangles have four right angles, and squares have four right angles, so squares are rectangles.

In this unit plan, students will:

• draw trapezoids to clarify their attributes, and define trapezoids based on those attributes.
• draw parallelograms to clarify their attributes, and define parallelograms based on those attributes.
• draw rectangles and rhombuses to clarify their attributes, and define rectangles and rhombuses based on those attributes.
• draw kites and squares to clarify their attributes, and define kites and squares based on those attributes.
• classify two-dimensional figures in a hierarchy based on properties.
• draw and identify varied two-dimensional figures from given attributes.