Each group needs:

• 2-3 copies of the Engineering in Reverse Worksheet (pdf), one per student
• 1 push-toy (available at most toy stores, such as at Target®)
• 1 small Phillips-head screwdriver (borrowed from other school classrooms or purchased at Lowe's® or Home Depot® for less than $US 1 each)
• 1 small bowl or bin for screws and small pieces