Philosophical questions tend to be conceptual in nature. This means that they cannot be answered simply by giving facts or information. A concept is the object of a thought, not something that is ...

Scientists explore the physics of how polarization-filtered colors emerge, how they can be controlled, and why subtle changes in viewing angle, sample orientation, and the order of layers of films ...

The Merriam-Webster dictionary defines the word “penguin” as “any of various erect short-legged flightless aquatic birds (family Spheniscidae) of the southern hemisphere.” That description seems ...

The zone of proximal development (ZPD), also known as the zone of potential development, is a concept often used in classrooms to help students with skill development. The core idea of the ZPD is that ...

What are operational concepts, and how do they contribute to military strength? Essentially, operational concepts are generic schemes of maneuver. They provide the conceptual basis for operational ...

The new question-of-the-week is: How should we teach grammar to students? Our students need to learn grammar, but the real question is how to teach it in ways that don’t bore them out of their minds.