Lesson 2

Lesson 2: Quadrilaterals

Focus

Shown is a photograph of an inukshuk, which is a stone landmark created by the Inuit people of the Arctic region of North America. The inukshuk may have been used as a point of reference or a marker for travel routes.

Commonly, an inukshuk is a single stone positioned in an upright manner. In the photograph here, the inukshuk resembles a human being. An inukshuk that resembles a human being is called an inunnguaq. Many of the stones that make up this figure resemble simpler geometric shapes. Can you identify the quadrilaterals in the photograph? In this lesson you will find out what characteristics make up a quadrilateral.

Lesson Outcome

At the end of this lesson you will be able to solve problems that involve quadrilaterals.

Lesson Questions

You will investigate the following questions:

• How can the properties of quadrilaterals be used to help solve problems?
• How do the properties of quadrilaterals affect quadrilaterals’ shape and size?

Assessment

Your assessment may be based on a combination of the following tasks:

• completion of the Lesson 2 Assignment (Download the Lesson 2 Assignment and save it in your course folder now.)
  
• course folder submissions from Try This and Share activities
  
• additions to Glossary Terms

Materials and Equipment

• calculator
• ruler
• protractor