Does slow and steady really win the race? Class members listen to an audio version of "The Tortoise and the Hare" before completing a math activity, which prompts them to calculate distance, rate, and time. A writing assignment prompts...

Readers learn about idioms with a narrative writing activity that follows Aesop's fable "The Milkmaid and Her Pail." An audio version of the story allows learners of all reading levels to access the text.

Descriptions, examples, and a calculator to study inflation between any years from 1913 through 2006. (July 19, 2006)

How large is your 'carbon footprint' -- the amount you contribute to greenhouse gas emissions? We'll talk to a researcher looking at energy usage around the country, from homeless people to the rich and famous.

Determine your body mass index using this online calculator. This handy tool will even plot your BMI data on a graph.

A group of scientists reports that they have created modified E. coli bacteria capable of performing one specific type of calculation. We'll talk with one of the researchers about the prospects for biologically-based computing in this...

An ancient Egyptian papyrus from around 1550 BC, used to train scribes. It contains 84 different calculations to help with various aspects of Egyptian life, from pyramid building to working out how much grain it takes to fatten a goose....