## RWA Triangle Classification

### Topic

Measuring and classifying triangles in the real world

### Vocabulary

- Acute triangle
- Obtuse triangle
- Right triangle
- Equilateral triangle
- Isosceles triangle
- Scalene triangle

### Student Exploration

#### How many triangles can you identify and classify in the world around you?

To learn more got to

http://www.ysjournal.com/viewimage.asp?img=YoungScientistsJ_2009_2_7_35_57766_u12.jpg

### Extension Investigation

1. Students will identify triangles in their classroom or school and do a presentation on what they found. See an example here:

2. Each student will bring or take a photo of an acute, right, obtuse, equilateral,isosceles and scalene triangles. They will measure the triangle angles and sides using a protractor and a ruler.

#### Layering (optional)

Triangles Rap

Real World Triangles

Triangle Sort, Shapes http://www.crickweb.co.uk/ks2numeracy-shape-and-weight.html