Are you working on triangle geometry in your class? This video shows us how to calculate the internal angle sum of a triangle. Tom gives us a model that makes this lesson fun and engaging.
Have you seen the Maths Pathway blog?
We love teachers. We also love to help teachers make their classrooms even better! That’s why we created the media library. If you’re looking for more great content, make sure you check out the Maths Pathway blog. You’ll find advice, how-to’s and posts covering all things teaching, education and maths.

Looking for more classroom activities?
There’s plenty on our Media Library! Check out the video links below to watch more great videos like this one.