When you count to 20, you start at 1 (or zero) and count on until you reach 20. Each number is one more than the last. When you count back from 20, you start at 20 and count back until you reach 1 (or ...
Look closely at this image, stripped of its caption, and join the moderated conversation about what you and other students see. By The Learning Network Shivani Gonzalez, a TV reporter, joins us in ...
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