Across the U.S., high school graduation rates are at record highs, yet math proficiency lags dramatically behind. In some states, the gap between graduation and math mastery exceeds 50 percentage ...

In Erin Bryan’s 5th grade math classroom, TGIF takes on a whole new meaning. Fridays don’t just herald the coming weekend. They’re also game days. “They all come in here on Fridays pumped,” said Bryan ...

Marginal tax rate is the rate you pay on your last dollar of income, based on your tax bracket. Effective tax rate is the average rate you pay on all of your income. Understanding the difference is ...

Australia’s top marginal tax rate is 47% (45% plus Medicare levy), but some of us face a so-called effective marginal tax rate that’s much higher. Effective rates include everything that is lost as a ...