Loading in 5 sec....

Introduction to TrianglesPowerPoint Presentation

Introduction to Triangles

- 98 Views
- Uploaded on

Download Presentation
## PowerPoint Slideshow about 'Introduction to Triangles' - ardelis

**An Image/Link below is provided (as is) to download presentation**

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

### Introduction to Triangles

### Time for an Observation Walk

### Time to Communicate

N. Bekanovic, S. Jordan, N. Moore, A. Prosdocimo

Grade 4/5

Lesson Study #1

What am I?

I can be big or small.

You can find me all around.

I am made up of three connected lines.

I have three vertices

I am a polygon.

Sailboat

How many triangles can you find?

Church

How many triangles can you find?

Tall Building

How many triangles can you find?

3D Shape

How many triangles can you find?

Quilt

How many triangles can you find?

Ms. Moore’s Triangle Challenge

PROCEDURE:

(1) You will be divided into partners.

(2) Each pair will be given a bag of pipe cleaners.

(3) Use these pipe cleaners to make different types of triangles.

(4) There are three colours of pipe cleaners. Each colour represents a different length.

(5) You can use any combination of colours.

(6) Work with your partner to create many different triangles.

(7) You will be given THREE minutes to create these triangles.

(8) Display your triangles flat on the table.

DO NOT BEND, TWIST OR ATTACH ANY PIPE CLEANERS.

(1) This is a chance to take a closer look at each other’s creations.

(2) Use your eyes only.

(3) Make a mental note of the various triangles you observe.

(4) Discussions will take place later in the lesson.

Equilateral Triangle

A triangle that has all of its sides equal in length

Isosceles Triangle

A triangle that has two sides equal in length

Scalene Triangle

A triangle that has no equal sides

Let’s look for these triangles

Can you find examples of equilateral triangles?

Can you find examples of isosceles triangles?

Can you find examples of scalene triangles?

What is the difference between an equilateral, scalene and isosceles triangle?

Use words and pictures (with symbols) to explain your answer.

Download Presentation

Connecting to Server..