For over a decade, mathematicians have failed to agree whether a 500-page proof is actually correct. Now, translating the ...

Helping students to develop math fluency takes more than just flash cards. It requires teaching them how to think about ...

Learn Paste Special math, Flash Fill patterns, Go To Special filters, and the F4 shortcut to clean data fast and share Excel ...

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DETROIT — The Detroit Tigers have less than 24 hours to find an offense that can save their season. Unfortunately for their chances in the American League Division Series, the Tigers have been looking ...

Word puzzles are seemingly simple puzzles that consist of random letters arranged in a grid. These puzzles have become one of the most popular online puzzle challenges in recent times. The goal of a ...

Word puzzles have become one of the most popular puzzle challenges on the web. These seemingly simple puzzles consisting of random letters arranged in a grid have taken the web by storm. The goal of a ...

The original version of this story appeared in Quanta Magazine. Imagine that someone gives you a list of five numbers: 1, 6, 21, 107, and—wait for it—47,176,870. Can you guess what comes next? If ...

Optical illusion: The word ‘Sand’ appears multiple times in this grid. You have to find the word ‘Stand’ in no more than 10 seconds. Optical illusions are going viral these days. One challenge that is ...