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Word Problems

Browse Middle School Definitions

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A student has a question about units of weight.

A description of skew lines including diagrams and definitions.

More on Q.E.D.

I've only seen long, stringy roots!

Whole Numbers and Multiples [09/11/2001]

Why Cubed? [11/27/2001]



Why is a circle defined as 360 degrees?



Why Is 'Pound' Abbreviated 'lb'? [03/08/2004]
Why is "pound" abbreviated lb? Is it because of its Latin roots? I know libra means pound. What is the history of it?

Why is the word number abbreviated to no.?


Why Y Rises and X Runs [12/19/2012]
A teacher seeks an explanation for why slope is "rise over run" rather than "run over rise." Doctor Peterson reveals the logic, as well as a way to investigate these kinds of imponderables, before affirming her derivation from slope-intercept form and suggesting related motivations from other applications.

Wondrous Numbers [02/07/2001]
What is a wondrous number?

Word for a 225th Birthday [07/10/2001]


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