Audience: Middle school class to
graduate student class
Time Needed:
Activity 1 10-15 minutes
Activity 2 10-15 minutes
Activity 3 30-40 minutes
Technology Education Standards:
Social Studies Standards:
This lab can be run as a unit or broken into several segments. Here are suggestions for a multi-day activity:
On the first day, break students into groups, describe the activity, have an initial discussion of nanotechnology, and allows the small groups to meet and discuss briefly.
Allow the students to spend a few days on their own researching nanotechnology and their respective identities. Possible resources include the Internet, parents, other acquaintances, newspapers (i.e., The New York Times), and popular science magazines (i.e., Scientific American).
Following the research period, use a class day to have the groups present their decisions and ideas and to respond to one another.
Activity 1 - What is technology and how does it impact society? (10-15 min):
Begin the lab by discussing technology. The purpose of this exercise is to introduce the notion that technology involves more than machines Ð it also involves human effort and purpose. In that sense, technology is social.
The next section of the lab is intended to help students begin to explore the human and social aspects of familiar technologies.
**NOTE** Before ending this portion of the lab, make sure the students understand that technology has purpose and both positive and negative effects.
Activity 2 - Nanotechnology (10-15 min.):
Ask students if they have ever heard of nanotechnology. (Spiderman and Minority Report both mention nanotechnology.) Have they ever heard of "nano"?
Introduce nanotechnology: a new technology that works on a very small scale - the scale of the atom or the molecule.
"What is nano?" Activity - Nanotechnology works at the nanoscale. In order to understand how small a nanometer is, we can use an analogy:
Have students create a circle approximately 4 meters in diameter.
Place the four objects in the middle of the human circle and explain that they must now think of themselves as very, very small. They are standing around the circumference of a single human hair!
If their circle is the size of the circumference of a single human hair (which is ~50 micrometers in diameter), then which object represents the relative size of an atom?
The grain of sand or salt is the size of a nanometer if the circle of people is the circumference of a human hair. The grain of sand or salt and the circle of people differ in size by a factor of 10,000. Likewise, a nanometer and the diameter of a human hair differ by a factor of 10,000.
**NOTE** You could include a discussion of the materials and applications of nanotechnology here. See the IPSE website http://mrsec.wisc.edu/edetc/ to learn more about nanoscale materials such as ferrofluids and carbon nanotubes.
One of the goals of nanotechnology is to manipulate atoms to create new materials. You can think of atoms as building blocks, like Legos. In nanotechnology, scientists use atoms to build structures, just like we use Legos.
Show overhead of fine-motion controller. In this picture, you can see how the different atoms (represented by different colors) are put together to create this nanoscale machine.
Activity 3 -Nanotechnology and Social Interaction: The Medical Nanobots (3-40 min.):
Using nanotechnology and the manipulation of atoms, scientists also hope to create nanobots Ð nanoscale robots.
Our medical nanobots will have the capability to do the following:
Offer the following scenario Ð a new company has recently developed several types of medical nanobots. Within the next few years, a local hospital plans to begin using these nanobots in medical treatment. Before they do, the hospital administration has gathered together representatives from a number of different areas to help answer some important questions:
**NOTE** Here are some other possible questions:
Now assign each group of students its identity. Each group will represent one of the following:
After the educator finishes speaking, give each group an Identity Sheet. During the small group discussion, the group answer the four questions listed under (3) above (or whichever questions the educator chooses). It is important for the groups to justify their responses. They should write their answers on a large sheet of paper.
**NOTE** People within groups might have different takes on questions - for instance, patients of different classes or ages, larger or smaller insurance companies, different kinds of doctors, etc. This should be encouraged to show students that no group is monolithic.
Once they have had a chance to talk among themselves, the students should reassemble and each group should present and justify their ideas. The goal here is to get students to teach each other about the social interests of different groups and how those interests might shape the way the nanobots might be used, if at all.
Ask students what they learned from the activity. Then have them come out of their identities and have the whole class vote on whether nanobots should be used. Depending on time and the verdict of the first vote, discuss some of the other questions mentioned above or open the floor for discussion.
**Concluding NOTE** We hope that students will see more clearly that new technologies do not simply spontaneously come into existence, but are the result of social forces as much as physical ones. The choices that people make are important - including the choices that the students make. Remind them that new technologies usually have both positive and negative aspects and individually we should all evaluate the technology. If students would like to research nanotechnology further, please direct them to the University of Wisconsin-Madison Materials Research Science and Engineering Center education website at http://mrsec.wisc.edu/nano and encourage them to explore.
The Nanotechnology Social Interaction Lab is intended to be as self-contained as possible and to require little or no prerequisite knowledge. Nevertheless, you may wish to introduce or reinforce the following concepts prior to conducting the activities included in the lab.
Activity 1
[None]
Activity 2
Activity 3
The concepts required for Activity 3 depend on the role-play identities chosen
and the particular scenario used. You may use the five identities provided at
the end of this packet or choose social interest groups that have relevance
to your curriculum. If you use the identities provided, you can describe the
various social groups you intend to assign to students before running the activity.
Or, you might allow students some time to research and discuss the function
and interests of their role-playing identity. Such preparation will be particularly
important if you intend on using the lab as a means for teaching students about
the perspectives of government agencies, insurance companies, manufacturers
or the like. However, the lab need not be used for this purpose, and the Identity
Sheets should contain all the information students require to take a plausible
position on the scenario you choose.
Different scenarios may also require different sorts of background knowledge, though again Activity 3 should work without such preparation. Whether students understand technical details related to medicine is secondary in importance, as the lab is currently designed, to the realization that different groups may feel very differently about the use of a given technology. For this lab, it is most important that students learn that society and technology interact. Nevertheless, the following concepts may be useful within the various scenarios.
Medical Care Scenarios:
Authors:
IPSE Interns: Lauren Sammel, Greta Zenner
IPSE Leadership Team: Wendy C. Crone, Amy Payne, Greta Zenner, and Tom Derenne
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The Nanotechnology Activity Guides are a product of the Materials Research Science and Engineering Center and the Internships in Public Science Education Project of the University of Wisconsin - Madison. Funding provided by the National Science Foundation.