Instructional Video
Loyola University Chicago

Math Flix: Creating Number Tile Puzzles: Multiplication 3

3rd - 5th
This video provides an opportunity to see how to create your own multiplication puzzle. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept. [3:40]
Instructional Video
PBS

Pbs: Measurement and Geometry: Finding Area

9th - 10th Standards
Area is the measure of the surface inside a flat figure and is measured in square units.
Audio
Science Friday Initiative

Science Friday: Are Math Skills Built in to the Human Brain?

9th - 10th
Amazonian villagers with no schooling understand basic geometry as well as math-schooled adults.