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

This paper describes the eccentricity, amplitude, phase shift, angular momentum, polarization, radial path, and orbital ...

With the acute phase of the Covid-19 pandemic fading even as the coronavirus persists and evolves, a new normal is taking shape around the world. A survey of museum directors reveals the impact of ...

Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International stock ...