Proportional Reasoning - Engaging Resources

M SO2 - Dinosaur Project
(Link: Dinosaur Project)

"A build-it-yourself model of a dinosaur was purchased.  Students working in groups were given a unique set of "bones" (from the model kit) which needed to be transformed into giant 'bones' for the school's model."

7 Processes focus:  Communication.  Visit the Communication Process page for more ideas on how to incorporate Communication in your teaching.

M SO2 - Earth is Invisible
(Link: )

Shows scale models of the earth, planets and stars. (3D modeling)

7 Processes focus:  Visualization & Connections.  Visit the Visualization and Connections Process pages for more ideas on how to incorporate these Processes into your teaching.

M SO3 - Illuminations: Scale Factor Interactive
(Link: Illuminations Scale Factor)

"A common misconception is that when the dimensions of an object are doubled, the area is doubled, too. But this is not true! Use this applet to investigate how changes in the scale factor influence the ratio of perimeters and the ratio of areas between two figures."

7 Processes focus:  Visualization & Technology.  Visit the Visualization and Technology Process pages for more ideas on how to incorporate these Processes into your teaching.