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Dog gone it!
out of 5 stars
08 Jun 2015 | Contributor(s):: Brenda Capobianco, Todd Richard Kelley, Chell Nyquist, James Daniel Lehman
This design challenge, for students in grade 3, focuses on simple and compound machines. The objective of the challenge is to design a compound machine to help a large breed of dog to get into and out of the back of a car.
Save the Wolf (Simple Machines)
03 Jun 2014 | Contributor(s):: Kendra A Erk, James Daniel Lehman
This grade 3 design lesson introduces simple machines and challenges students to use simple machines to create a device to capture a wolf.