Think Tank Time

ATTENTION!! Your class has been selected to work in engineering teams to complete an important challenge.

Do you know an engineer? Do you know what kinds of work

engineers do? • Take 2 minutes to think about the work of

engineers. • Discuss your ideas with your team.

Engineering Design ChallengeMagnify Your Life

Day 1

Working as a TEAM

• As you watch the video, focus on why engineers had to work together to design a lifesaving apparatus.

Apollo 13 Movie clip (5:35)

Problem:A National Medical Research organization, NMR, has received a grant to research, develop, and create a prototype (model) of a magnification system that magnifies cancer cells at a 1:2 ratio (twice their original size). If successful, the prototype will be used to develop an improved magnification system for studying cancer cells that attack platelets in the blood.

Engineering Design Challenge

From this size…To this size?

How could you get this image….

Think Tank Time

Where would you project the image?

Convex LensesLenses and mirrors are curved pieces of glass or plastic that can “bend” light rays in different directions

How is this convex mirror curved?

Convex are thicker in the middle and thin out at the edges. These lenses magnify .

Exploring Convex Lenses

• What happens to an image projected through a convex lens?

• What happens if you move the lens?; the image?; the screen?

• What things did you learn about how a convex lens works?

Criteria (Musts)• The image must be magnified

to twice the original size.• The apparatus must support

the designed magnification system.

Criteria (musts): • The image must be magnified to twice the original

size.• The apparatus must support the designed

magnification system.Constraints (limits):• Use only one convex lens as a magnifier.• Construct the projection system using only the

materials provided.

Engineering Design ChallengeMagnify Your Life

Day 2

Think Tank Time

Think about the steps of the Engineering Design Process.

•Which steps has your team already worked through?

•Which steps will you work on next?