Lesson objective: Identify quadrilaterals with different attributes.

This lesson provides an opportunity for students to apply their knowledge and understanding of shared attributes to a real-life situation. Students are asked to construct picture frames that fit a given criteria for design with shared and unique attributes

Key Concept students will use:

- because figures may belong to categories and subcategories, we can classify figures in a hierarchy based on properties

Skills students will use:

- knowledge that lines are parallel if they are on the same plane and will never intersect, and perpendicular if they are on the same plane and intersect at a 90-degree angle (Grade 4, Unit 13)
- understand that objects have geometric properties that allow us to create categories of objects

Students engage in Mathematical Practice 3 (construct viable arguments and critique the reasoning of others) as they consider the claims of others in regards to the classification of two-dimensional figures, and make judgements on their reasoning based on their understanding of the classification of plane figures.

**Key vocabulary: **

- attribute
- congruent
- kite
- parallelogram
- quadrilateral
- trapezoid

**Special materials needed:**

- popsicle sticks (optional)