CHAMPAIGN, Ill. Two math-notebook pages recently authenticated as belonging to Abraham Lincoln suggest the 16th president, who was known to downplay his formal education, may have spent more time in ...

American investment in science has led to important breakthroughs, but the Trump administration is slashing its funding. What is your reaction? By Natalie Proulx Is popcorn good for you? What about ...

What do you notice about how much it costs the U.S. government to make a penny, nickel, dime and quarter? What questions does this graph raise for you? By The Learning Network What animal made an ...