An intriguing optical illusion is challenging viewers to find a hidden number 6 amid a sea of the word "ROCK." The puzzle plays on pattern recognition and cognitive perception, making it difficult for ...

Elephants are learning to live with us. Can we do the same? Elephants are learning to live with us. Can we do the same?

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The Factor Game applet was adapted with permission and guidance from "Prime Time: Factors and Multiples," Connected Mathematics Project, G. Lappan, J. Fey, W ...