Mona Evans

Our Solar System was the only one we knew. Astronomers used it to explain how star systems were made. But beware the theory based on only one example! We now know of thousands of planets around other suns, and the theories need revising. Here are a few of the astonishing planets we've found.

Connie Mistler Davidson

Reading books, especially picture books with easier sentence structures can be a good way to learn about prepositions. This article shows several ways to teach about prepositions. You can also learn what prepositions and prepositional phrases are.

Nicole Amos

Choosing a dissertation topic can be overwhelming, especially when you do not yet know what you are interested in or you are interested in many topics and are having trouble narrowing them down. Let’s look at three steps to help you get started.

Kim Kenney

There are personality types who are more likely to visit museums. There are also people who will NEVER visit a museum. What do you know about these groups?

Amy Tradewell

Subitizing is being able to automatically identify the quantity of a set of objects without actually counting the objects. This is a very important skill in terms of number sense.