Whenever I hear the word satellite, I think of this song, Cecelia and the Satellite by: Andrew McMahon. Background Satellites are extremely useful tools that allow us to learn more about Earth- especially weather, precipitation, landforms - from a slightly different perspective. Satellites see things in pixels aka picture elements. 1 pixel = 1 square area on an image. Spacecraft use 8-bit data. This means that a computer can have 256 shades of gray...talk about being in a gray area! Binary code - series of 0s and 1s that tell a computer information - also comes into play. The binary numbers are used to determine the shade of grey represented. Later, a person interprets the shades of grey as colors and assigns colors to the images. These related Brainpop videos give more information about the topics and include activities, games, a quiz and a link to Newsela articles to read more! Comparing Pixel SizesAs the pixel size decreases, the resolution increases, making it easier to determine what the picture is. Part 1 (Larger Pixels) - Students put the colored paper in the grid square that has the corresponding number. Part 2 (Smaller Pixels) - Students sort the pre-filled in grid segments to make a large grid. Can you guess what it is? Part 3 will be revealed tomorrow! Binary COde GridingOverview
Code
Roles -> Switch after a grid is completed.
Materials
1. Satellite choses one laminated grid from envelope, keeping it concealed from group members. 2. Satellite describes grid in binary code ONLY. Satellite should NOT tell group what image he/she sees on the grid. 3. Satellite can decide to go pixel by pixel or focus only on the shaded squares. 4. Each Computer receives a blank grid and black crayon or colored pencil. The Computers color in the grid squares based on the Satellite's directions. After the Satellite's directions are complete, Computers can determine image. 5. If group has an Engineer, he/she will get a blank grid. Using the computer's image, he/she will assign colors to black squares and recreate the image in color. 6. Roles switch and above steps repeat. How can I adapt? - Change the pixel images to fit something you're studying in class! - Have students design pixel images. Laminate and use them for the activity instead of printed or copied ones. - Divide a large pixelated image into smaller grids. Give each group a grid. Have all groups combine grids to determine overall image. - Have students determine fractions, decimals, percentages and ratios of shaded and unshaded pixel grid squares. This simple, fun activity is a great way to integrate art, technology, math and space into your classroom!
Peace, love and space exploration -CAPCOM Conrad
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AuthorApollo 13 fan. Educator. Lifelong Learner. Third generation Boilermaker. Space Exploration Enthusiast. Collaborator. Click Subscribe to stay updated!Archives
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