Course 2 Online!
Henrico County Public Schools, Virginia
7.7 - Quadrilaterals
Number, Number Sense, Computation and Estimation

Measurement and Geometry

Probability, Statistics, Patterns, Functions, and Algebra

SOL Review Materials
Geometry
Focus: Relationships between Figures


The student will compare and contrast the following quadrilaterals based on properties: parallelogram, rectangle, square, rhombus, and trapezoid 
Essential Knowledge and Skills 
  • Compare and contrast attributes of the following quadrilaterals: parallelogram, rectangle, square, rhombus, and trapezoid.
  • Identify the classification(s) to which a quadrilateral belongs, using deductive reasoning and inference.
Essential Understandings
  • Why can some quadrilaterals be classified in more than one category? Every quadrilateral in a subset has all of the defining attributes of the subset. For example, if a quadrilateral is a rhombus, it has all the attributes of a rhombus. However, if that rhombus also has the additional property of 4 right angles, then that rhombus is also a square.
Vertical Articulation
  • SOL 5.12ab - a) classify angles as right/ acute/ obtuse/straight; b) triangles as right/ acute/ obtuse/ equilateral/ scalene/ isosceles.
  • SOL 6.13 - identify/describe properties of quadrilaterals
  • SOL 8.6ab - a) verify/describe relationships among vertical/adjacent/supplementary/complementary angles; b) measure angles < 360°
Instructional Materials
  1. VDOE Enhanced Scope and Sequence Lesson: Quadrilateral Sort (PDF) - Comparing and contrasting the properties of quadrilaterals (Word)
  2. Notes: Quadrilateral Venn Diagram (flipchart)
  3. Notes: Quadrilateral (flipchart)
  4. Notes: Quadrilateral Angles (flipchart)
  5. Guided Notes: Quadrilaterals Comparison Chart (doc)
  6. VDOE Algebra Readiness Curriculum Companion: Working with Polygons (pdf)
Real World Lessons
Practice
  1. Worksheet: Parallelogram Properties (doc)
  2. Worksheet: Quadrilaterals (doc)
  3. Worksheet: Quadrilateral Quest (pdf)
SOL Mini Quiz
  1. SOL 7.7 Mini Quiz: Quadrilaterals (pdf) | (doc)
Skills
  1. Quadrilaterals: Tricky Trapezoids (doc)
Videos
  1. YouTube: Quadrilateral Rap!
  2. YouTube: Quad Song!
  3. YouTube: Know Your Quadrilaterals
Explore Learning
  1. Classifying Quadrilaterals - Activity A: Apply constraints to a quadrilateral, and then reshape and resize it. Classify the figure by its constraints. Explore the differences between the different kinds of quadrilaterals.
  2. Classifying Triangles: Place constraints on a triangle and determine what classifications must apply to the triangle.
  3. Special Quadrilaterals: Apply constraints to a parallelogram and determine what type of figure results. 
Websites
  1. Study Jams: Classify Quadrilaterals
  2. XP Math: Call of Geometry Game
VDOE Interventions
  1. VDOE Algebra Readiness Curriculum Companion: Working with Polygons - The lessons focus on identifying, classifying, describing, and comparing plane figures. Students determine similarity and congruence of figures and work with transformations.(pdf)
Common Core Standards
None