Instructional Video3:28
Curated Video

This Is How You Stop an Old Train Tunnel from Flooding

9th - 11th
The Albula Tunnel, the second longest on the Glacier Express line that cuts through the Swiss Alps, was opened in 1903. As a result, it's badly in need of renovation - and engineers have an ambitious solution. From the show Mighty
Instructional Video2:27
Brian McLogan

Rewriting a rational expression using distributive property

12th - Higher Ed
In this video series I will show you how to rewrite fraction expressions by using the distributive property. This is a common method to help us rewrite fractions as two terms rather than one. (17 + 5n)/4