Standard: 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. Description Link LESSON: These learnzillion.com lessons address understanding attributes of 2D shapes: Count sides and angles to identify polygons Identify quadrilaterals based on attributes Compare quadrilaterals based on attributes Classify quadrilaterals by looking at multiple attributes. LESSON: These learnzillion.com lessons address understanding attributes of 2D shapes: Analyze and compare triangles by their sides Classify and compare quadrilaterals Identify attributes of polygons. TASK: Students create quadrilaterals on geo boards, then sort based on criteria they determine. TASK: Students create quadrilaterals based on given criteria. TASK: In this task, students identify quadrilaterals based on attributes. TASK: The purpose of this task is to have students reason about different kinds of shapes based on their defining attributes and to understand the relationship between different categories of shapes that share some defining attributes. ACTIVITY: This online game has students drag shapes that meet given criteria (clues) into a box. ACTIVITY: This online game has students identify 3 types of triangles. ACTIVITY: This online game addresses shape characteristics. https://learnzillion.com/resources/72818-understand-attributes-oftwo-dimensional-figures-and-classifying-figures-in-a-hierarchy-5g-b-3-5-g-b-4 https://learnzillion.com/resources/73081-understand-categoriesand-subcategories-of-two-dimensional-figures-5-g-b-3 http://www.k-5mathteachingresources.com/supportfiles/constructing-quadrilaterals.pdf http://www.k-5mathteachingresources.com/supportfiles/identifying-quadrilaterals.pdf http://www.k-5mathteachingresources.com/supportfiles/identifying-quadrilaterals.pdf https://www.illustrativemathematics.org/contentstandards/5/G/B/3/tasks/1941 http://teams.lacoe.edu/documentation/classrooms/amy/geometry/68/activities/quad_quest/quad_quest.html http://www.math-play.com/classifying-triangles/Triangles-Dragand-Drop-Game.html http://www.bbc.co.uk/bitesize/ks2/maths/shape_space/shapes/play/