Classifying Triangles by Sides
Brochure
Center #1
Developed by: Rachel Cormier
Iowa High School
GLEs:
Geometry:
10. Form and test conjectures concerning geometric relationships including lines, angles, and polygons (i.e.,
triangles, quadrilaterals, and n-gons), with and without technology (G-1-H) (G-4-H) (G-6-H)
Introduction:
There are two different ways of classifying triangles. One way is to identify and classify triangles by their angles. The
other is to identify and classify triangles by their sides. You will now take that knowledge and create a project that
explains how to classify a triangle by its sides.
Big Question: What are the differences between the three classifications of triangles by their sides?
Task:
You are an advertisement developer who has been asked to design a brochure featuring the upcoming art exhibit,
“Everywhere I See Three”, in your town. Your task is to use MS Word to create an eye-catching brochure to present to
the exhibit committee for approval. The committee has been working with local schools on how math is represented in
everyday art. Within your brochure you are to show how the different classifications of triangles by their sides are
represented in everyday art.
Process:
To accomplish this task, you and your team will complete the following step-by-step instructions:
1. As a team, discuss the different types of classifications of triangles by their sides and which type of
triangles to look for to include in the final product.
2. Each member of your team will select one of each of the three types of classifications of triangles by
their sides (scalene, isosceles, and equilateral). Each of you will then research and locate three pictures
representing your particular type of classification. One of the three pictures will be a mathematical
representation of the selected classification, and the other two pictures will be from real-world
examples. You and your team members will search for pictures on the Internet. Use a search engine
like Google to find these pictures. Be sure to change the View to Large or Extra Large Icons to see the
pictures.
3. Save all selected pictures to a folder on the desktop of one computer using your group’s name and
number based on the class period you are in, in addition to the type of final product
(i.e., name _2_brochure).
4. Once all the pictures have been saved to the group’s folder, individual team members will then take on
the following roles and responsibilities:
Layout Manager 1: Your role is to put the interior of the brochure together. It may be helpful to
use this template to get started. Photos should be grouped according to the type of classification of
triangles by their sides. One classification per interior fold will be used.
Scripter 2: Your role is to write descriptions for each of the three types of classifications of triangles
by their sides on the appropriate fold of the brochure.
Designer 3: Your role is to gather two extra photos. One for a title page which will be the front of
the brochure and the other for the credits page which will be the back of the brochure. Be sure all
team members are acknowledged for their work by creating a credits page. In addition, you are to
design a third fold giving information pertaining to the event. View this handout for details.
5. As a team, review final project for accuracy.
6. Save your final project in your group’s folder on the desktop that you created in Step #3.
7. One member on your team will email me the final product using the following steps: Log into CPSB
email with one team member’s email and password. Open “new” and type in Rachel.cormier in the
address box and your team name with the class period in the subject line. Then, write the name of
your team members in the message box, and select the attach button. Once it is opened, find your
team folder and select “ok”. Then, click send. Please be sure to check with me to be sure I received
your email after you send it.
Evaluation:
See attached rubric.
Reflective Question or Constructive Response:
Upon completion of this learning center, you should be able to identify the three types of classifications of triangles by
their sides in real-world photos and understand the difference(s) between each type. This should help to better identify
the three types of classifications of triangles by their sides when looking at triangles in mathematical exercises.
Reflective Question: Based on the designs you have chosen for your project, explain the difference of each type of
triangle. Be sure to explain the characteristics of each triangle (example: Use terms like congruent, base, etc.).
Place the response to your reflective question or constructed response in an email to Rachel.cormier@cpsb.org.
Adapted from resources found at the following website
http://webquest.sdsu.edu/templates/lesson-template1.htm
Based on a template from The WebQuest Page