Draw along with the video to create the 3D view in the video
The Following are in class activities links
1. Isometric Drawing Tool
http://www.teacherled.com/resources/isodraw/isoshapeload.html
2. Count the cubes
http://www.mathplayground.com/cube_perspective.html
3. Points of View
http://pbskids.org/cyberchase/math-games/point-out-view/