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# AREA OF TRIANGLES USING GEOBOARDS

6th - 8th
Subjects
Resource Type
Formats Included
• PDF
• Activity
Pages
10 pages
Includes Easel Activity
This resource includes a ready-to-use interactive activity students can complete on any device. Easel by TpT is free to use! Learn more.

### Description

This activity will lead middle school students through constructing triangles and rectangles that are related to each other to determine a method for finding the area of a triangle.

There are three parts of the investigation:

• Finding the area of triangles where there is one horizontal and one vertical side

• Finding the area of triangles where there is one horizontal or one vertical side

• Finding the area of triangles where the vertices at (0,0), (b,0), (c,d).

The investigation ends with the students summarizing what they have discovered.

The directions are given in two formats:

• All four parts on one page, or

• All four parts on four half sheets of paper.

A full set of suggested answers is included.

A sheet of geoboards has also been included if you do not have geoboards.

• I love using hands on lessons with my middle schoolers, and they love it as well.
• Good
• Awesome
• Great Resource - thank you!
• Great for a hands on activity
• While this was challenging for my ELL fifth graders to work through alone, it was a perfect way to help me explain how to find the area of triangles using a tool they know--the geoboard! They wanted to know how to do this after our discussion of areas of rectangles, squares, so I used this whole class. Great job on this...I'm sure your middle school students love this.
Total Pages
10 pages
Included
Teaching Duration
50 minutes
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