Each group needs:

• Design Challenge Handout, one per student
• Paddle Testing Handout, one per student
• meter stick
• store-bought ping-pong paddle, also available on Amazon
• ping-pong ball
• materials to build ping-pong paddle
• Paddle Core Template
• core materials
• 3 mm (or ⅛ inch) thick sheets of balsa wood; the sheet size depends on the class size and the number of paddles to be made; (e.g.(the class could make 9 paddles from three 20 cm x 60 cm (8 in x 24 in) sheets of balsa wood)
• cardboard; approximate the size of the cardboard to match the size of the balsa wood.
• coating materials
• flour and water paste
• wood glue
• clear shellac finisher, available online
• polyurethane clear finish, available online
• Covering materials
• paddle rubber sets, available online
• foam roll, available online
• shelf liner, available online
• neoprene rubber, available online
• paddle grips tape, available online

To share with the entire class:

• ping-pong tables or table tennis nets
• hot glue gun and glue sticks
• disposable cups or bowls (one per student; used to hold coating material)
• foam brushes (one per student; size does not matter)
• camera (to document design process)