While most states have graduation rates between 80-95%, math proficiency is most often below 50%. (There’s a wide range in ...

In the 1930s and 1940s, for example, a group of Polish mathematicians regularly met in a café in Lwów, Poland (now Lviv, ...

Every year, the countries competing in the International Mathematical Olympiad arrive with a booklet of their best, most ...

Teachers can use these questions to draw students out and get worthwhile formative assessment responses to guide instruction.

Modal verbs are verbs that indicate likelihood, ability, permission or obligation. Modal verbs change the intention or meaning of the main verb in a sentence by showing whether an action is: Learn ...

Congratulations! High school graduation rates in your state are hitting all-time highs! But before you crack open the ...

the real line from -1.0 to 2.0, and label it as "x". A family of overloaded factory functions called `make_histogram` makes creating histograms easy. bin edges: -inf -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 inf ...

We can make this file beautiful and searchable if this error is corrected: Any value after quoted field isn't allowed in line 9. "Janet's ducks lay 16 eggs per day ...