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    Twin Cities Public Television
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    In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper. Learners then use a code of zeroes...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    This computer interactive lets you explore the effect of changing the number of colors and resolution of a picture. You can see the picture in high quality (72 dots per inch), low quality (10 dpi),...

    free Ages 6 - adult Under 5 minutes