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Topic: Math Prefixes
Replies: 7   Last Post: Oct 25, 1995 5:14 PM

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Eileen Abrahamson

Posts: 85
Registered: 12/6/04
Math Prefixes
Posted: Oct 23, 1995 8:07 PM
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An interesting discussion came up in my classroom today regarding the
prefixes used in math.

We were looking at how large numbers are named. million, billion, trillion,
quadrillion, quintillion, sextillion, septillion, octillion, nonillion, and
decillion.

The students listed the prefixes mi, bi, tri, quad, quint, sext, sept, oct,
non, and deci, and began finding other places where these prefixes are used
such as tricycle etc.

One of the students said - The months of the year - September,October,
November, December, and began saying that is the same as the months.
September is the 7th month. Suddenly several of the students said - no its
not its the ninth month. The next question was - Why are the prefixes used
differently with the months? Or, has there ever been a time when September
was the 7th month of the year? Or, when were the months named, and were
they intentionally named using these pre-fixes?

Great question that I cannot answer - Can anyone on the list help us out?

My fourth graders would greatly appreciate :-)

Eileen

# # # # # # # # # # # # # # # # # # # # # # # # # #
Eileen Abrahamson "All our knowledge has its origins
Fourth Grade Teachers in our perceptions."
Edw. Neill Elemetary Leonardo da Vinci
Burnsville, MN
E-Mail:0191enel@informns.k12.mn.us







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