Data-driven shale dialogue

It's been a decade since the start of the Marcellus Shale gas boom in Pennsylvania, and today more than 10,000 unconventional gas wells dot the state's hills and valleys.

Student engagement more complex, changeable than thought

A student who shows up on time for school and listens respectfully in class might appear fully engaged to outside observers, including teachers. But other measures of student engagement, including the student's emotional ...

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