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The Value Song
Lights... Darks... Action!!! Learn about the value of value with this song and video. Whether studying shades or teaching tones and tints, value is value-able for art, film, photography, and life! If you are learning the elements of art or teaching value in art for kids or adults, the Value Song is great for understanding…
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Where do math symbols come from?
Math is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subscripts ... it can look like a great big mess. Who decided these were the symbols we would use? John David Walters describes the origins of mathematical symbols and shows us why they’re still so important today. In the 16th century, the…