Each group needs:

• 1 stiff cardboard piece (minimum size 20 cm x 20 cm, larger is easier for longer time lengths)
• assorted small objects that can be used to model atoms in a crystal structure (i.e., marbles, straws, bottle caps, pipe cleaners, washers, beads, etc.)
• tape (you could use hot glue instead, but tape is much easier)
• writing utensils
• scrap paper
• scissors
• timers
• books to make a ramp
• Design without Building Background Reading (for introductory computer technology students) and Designing for Next-Generation Technology Background Reading (docx) (for advanced computer science students)

Each student needs:

• 1 KWL Chart and Design Guide
• 1 Making Sense Assessment
• (optional) 1 Exit Ticket (may administer on paper or have students discuss orally)