Lesson Plan

Explain that when a category of two-dimensional figures has a specific attribute, every subcategory of that category also has that attribute

Identify the category-subcategory relationships among quadrilaterals (quadrilaterals, parallelograms, rectangles, rhombuses, squares)

Use deductive reasoning to determine whether a given property applies to a subcategory by tracing it from the parent category

Justify why "all squares are rectangles" is true while "all rectangles are squares" is false, using attribute inheritance

Construct or interpret a diagram (Venn diagram or tree diagram) that shows how categories of two-dimensional figures nest inside one another

5.G.B.3

5.G.B.3: Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.