Each student needs:

• 1 “What Causes Tooth Damage” Pre-Reading
• 1 Pre/Post Assessment,
• 1 Individual Prototype Testing Worksheet
• 1 6 mm vibrating motor 
• 1 LR44 button cell battery 
• 4 chocolate coins (i.e., foil-covered chocolate candy)
• electrical tape
• strong scissors
• 1 timer/watch
• piece of cardboard
• double-sided tape
• (optional) modeling clay to mount coin while testing

Each group needs:

• Group Prototype Testing Worksheet
• 1 6 mm vibrating motor
• 1 LR44 button cell battery
• 8 chocolate coins (i.e., foil-covered chocolate candy)
• electrical tape
• strong scissors
• 1 timer/watch
• 1 caliper or ruler
• piece of cardboard
• double-sided tape
• (optional) modeling clay to mount coin while testing

For the entire class to share:

• variety of “bristle” materials (e.g., toothbrushes, hairbrushes, sponges, felt, yarn, pipe cleaners, sandpaper)
• dry erase markers
• double-sided foam tape at least 1 cm wide
• cardboard/variety of paper
• pencils/markers
• wire strippers
• scissors
• glue and/or hot glue   
• magic markers
• (optional) craft eyes, decorations, small masses