Anticipatory Set (Day One):
Take pictures of students or your school and observe them on the computer
(use either a digital camera or scan images taken with a conventional camera).
Ask students how the picture or information to make the picture got inside
the computer. Students should be shown other electronic pictures, such
as daily
weather satellite images. Tell students that the class is going to
learn how electronic information is transferred over the Internet and displayed
on computers.
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Show students magnified images of their pictures on the computer. Extreme
magnification will show that an electronic picture is composed of little
squares, called picture elements or pixels. Ask students to examine the
image and count the number of pixels wide various features are. For example,
how many pixels wide is your face, your nose, your chair, etc.
Back
to the Lesson Overview or On to the Exploration
Lesson designed by the YPOP Team
For questions about this lesson, please contact Tim Slater