Grade Levels: 3 - 5
Students use an online resource to view highly magnified creatures and learn about how they live on objects and people. Then they write an advertisement focused on exterminating one of these creatures.
Students will practice writing for a particular audience and purpose.
- Tell students they are going to use the World Wide Web to learn about the
microscopic things that "share" our homes and bodies. Review
what they have learned about fiber optics, X rays, scanning electron microscopes,
and other tools for enlarging and viewing creatures and places that are difficult to see with the naked eye.
- Take students online to the Creepy
Crawlies website. Have them read, scroll down, and click on "HOUSE." They
can then click on items in the photo to identify six places microscopic organisms
- Whenever students click on a hot spot, they will see a description and enlarged
photograph of a microscopic organism such as dust mites, house borer beetles, silverfish,
or book lice. After each description, they can scroll down and click on
"Take me back to the room" to repeat the process. Once they have found the
six sites, have them scroll down to the bottom of the photo and click on
"Click here" for a brief review.
- Tell students
that they are going to write an ad for a product or device that will get
rid of, or exterminate, the microscopic organism of their choice. Discuss how advertisements
attempt to convince people to purchase a specific product. Review good techniques
of persuasion; if possible, look at a few magazine ads together. Remind
students to include the details they have learned about their microscopic organism
to help convince people to purchase their product or device.
- Ask students to share their ads and discuss the inventive extermination devices
they created. Discuss whether the ads would convince a consumer to buy that
Return to the Creepy Crawlies website and click on "BODY" for details about creepy crawlies that live in and on our bodies.
Students might enjoy going to the Scanning Electron Microscope website and clicking on "How the SEM Works" for detailed pictorial information on this tool. From this site they can also click on "Image Gallery" for intriguing views of highly magnified plant and animal life.
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