The “4% rule” isn’t one rule — fixed percentage, fixed dollar, and inflation-adjusted withdrawals behave very differently in ...

Math teacher Emma Chiappetta uses a three-round exercise to help students not only recognize their errors, but also generate ...

Flower designs on 8,000-year-old Mesopotamian pots reveal a “mathematical knowledge” perhaps developed to share land and ...

It is well-known that Pythagoras’ ancient Greek equation for right triangles: a2+ b2= c2 , is older than ancient Greece. We also know that in Khufu’s pyramid the height equals the radius of a circle ...

Two effective manipulatives that can be used to support fractions and base 10 learning are base 10 blocks and Cuisenaire rods ...

More than 11,000 drawings made 125 years ago were stashed away for years. They have been meticulously restored, and some will ...