Quick, low-stakes observations focused on student learning allow administrators to provide teachers with useful feedback on ...

More than a decade after being recognized as the Arkansas 2007 teacher of the year, Justin Minkel still found himself flustered when his principal slipped into the back row of class. “When my ...

The Center for Teaching & Learning (CTL) at CU Boulder offers free and confidential classroom observations for educators at all levels. Whether you’re a tenured professor, teaching professor, lecturer ...

Imagine you’re going about your day as a teacher: You’re halfway through your lesson plan, you’re defusing tensions between students, while also trying to focus on kids who need extra help. It might ...

Earth's radiation budget is a core process of the Earth-atmosphere system, closely linked to global climate and environmental ...

The interstellar object 3I/ATLAS was discovered on July 1, 2025. There is currently no evidence to suggest that it is anything other than a natural astrophysical object. However, given the small ...

Earth observations are essential to understanding Earth systems and addressing global challenges. With associated data, repositories, and products, they drive innovation, support U.S. economic and ...

Backcountry enthusiasts can win prizes for submitting avalanche observations to the Colorado Avalanche Information Center.