- If each chalked gird box represents a two-foot by two-foot square,
how long is the submarine?
- How could you create a larger drawing of the submarine, but
still retain its scale dimensions?
(Create the chalk grid with a greater distance between the
- How might increasing the number of lines in the scaled down
grid affect the accuracy of the final drawing?
(With additional reference lines, the copying process might
be more accurate)
activities in this guide were contributed by Michael DiSpezio, a
Massachusetts-based science writer and author of "Critical Thinking
Puzzles" and "Awesome Experiments in Light & Sound" (Sterling Publishing
Academic Advisors for this Guide:
Corrine Lowen, Science Department, Wayland Public Schools, Wayland,
Suzanne Panico, Science Teacher Mentor, Cambridge Public Schools,
Anne E. Jones, Science Department, Wayland Middle School, Wayland,
Gary Pinkall, Middle School Science Teacher, Great Bend Public Schools,
Great Bend, KS