Using words like ‘factors,’ ‘denominators’ and ‘multiples’ may be part of a constellation of good math teaching practices ...

This title is part of a longer publication history. The full run of this journal will be searched. TITLE HISTORY A title history is the publication history of a journal and includes a listing of the ...

Mr. Smith drove at a steady clip along the highway, his wife beside him. “Have you noticed,” he said, “that those annoying signs for Flatz beer seem to be regularly spaced along the road? I wonder how ...

When the Environmental Protection Agency released its plan earlier this month for addressing marine litter, it named five Asian nations—China, Indonesia, the Philippines, Thailand, and Vietnam—as ...

In most counting scenarios in Excel, COUNTBLANK reliably counts blank cells, and COUNTA reliably counts populated cells. However, with these functions comes a problematic paradox: an empty string from ...

Warning: This graphic requires JavaScript. Please enable JavaScript for the best experience. Since 2006, guns have been used in an average of 25 mass killings per ...

There’s little question that heavy drinking is a bad idea. But the science around moderate alcohol consumption is a lot more complicated. Note: While research on alcohol is evolving, the Centers for ...