Unit 8, Lesson 11-- Properties of Special Quadrilaterals

Lesson 11-- Properties of Special Quadrilaterals

Introduction

Hello Mathematicians! Today we will become familiar with the properties of special quadrilaterals.

Visual

Rectangle. Square. Parallelogram. Rhombus. Trapezoid. Kite.

Interactive

Part 1 Directions:

  • In this lab, you will explore different types of quadrilaterals.
  • As you explore, try the following challenges:
    • What happens to the side lengths and angles when you move a corner?  What about when you move a side?
    • Can you change from one type of quadrilateral to another with only one move?
    • Can you change a shape without changing it to a different kind (ex:  change a parallelogram, but keep it a parallelogram?)

Part 2 Directions:

  • Read the definition of each quadrilateral.
  • Build it using the square geoboard. 
  • Draw each shape in your math notebook.  Label the name of the shape, and write the definition.
    • Parallelogram: A quadrilateral with both pairs of opposite sides parallel.
    • Rectangle: A parallelogram with four right angles.
    • Square:  A plane figure with four equal straight sides and four right angles.
    • Rhombus:  A parallelogram with four sides of equal length.
    • Trapezoid:  A quadrilateral with at least one pair of parallel sides.
    • Kite:  A quadrilateral with two pairs of equal- length sides that are adjacent to each other.  

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Georgia Department of Education, Math