They can be used to join together two clauses in a sentence. However, the clauses need to make sense on their own. For example: I had a terrible cold. I still went to work. You can add the ...

Explore a wide range of recent research in mathematics. From mathematical modeling to why some people have difficulty learning math, read all the math-related news here.

Choose three to five works of art or culture to group in some way, then tell us why we should — or shouldn’t — check them out. Contest dates: Jan. 14-Feb. 25, 2026. By The Learning Network How do you ...

Modal verbs are verbs that indicate likelihood, ability, permission or obligation.