Estimating the Storage Capacity of a CD/DVD

Each group needs:

• DVD
• CD (compact disc)
• red or green laser pointer; red ones cost less than $10 each; green ones cost ~$30 each
• protractor
• small spacers to place under protractor (such as cardboard pieces)
• plain white sheet of paper
• calculator
• Estimating Storage Capacity Worksheet (PDF), one per person

To share with the entire class:

• tape