[Numeracy 117] Re: introductions

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Linda Shilling-Burhans lshilling at cvabe.org
Mon Feb 8 09:45:17 EST 2010

Nicely done, Barbara! Thank you for this.

Linda Shilling-Burhans
Community Coordinator
Central Vermont Adult Basic Education
Bradford Learning Center

-------Original Message-------

From: Barbara Murray
Date: 2/6/2010 9:32:55 PM
To: gdemetrion at msn.com; The Math and Numeracy Discussion List
Subject: [Numeracy 110] Re: introductions

The least common multiple is used to find the lowest common denominator.

Example: Add 1/2 + 1/3 + 1/4 + 1/6

The multiples:
of 2 are 2 4 6 8 10 12 14 16 18 20 22 24. . .
of 3 are 3 6 9 12 15 18 21 24 . . .
of 4 are 4 8 12 16 20 24. . .
of 6 are 6 12 18 24 . . .

The least common multiple is 12 and this is also the lowest common
denominator. Notice that 24 is also a common multiple, but it is not the
least common multiplie. It is also not the lowest common denominator,
although it would be A common denominator.

1/2 = 6/12
1/3 = 4/12
1/4 = 3/12
1/6 = 2/12

The sum is 15/12 = 1 3/12 = 1 1/4

----- Original Message -----
From: George Demetrion
To: numeracy at nifl.gov
Sent: Saturday, February 06, 2010 2:56 PM
Subject: [Numeracy 109] introductions

Good afternoon all.

While I am an experienced adult educator I am a newbie math teacher, but I'm
plugging away in my first transitions to college basic math course.

We've had two three hour sessions thus far in a 15 week course and things
are moving along okay.

To be sure I've put a lot of time practicing my math through basic algebra
and concentrating on the assignments in our weekly sessions.

I'm learning and I'm also getting a good experiential dose of math phobia,
which in turn, in the process of transforming in the process of learning and
then drawing on my overall teaching skills, especially incorporating basic
explanation, a lot of practice and collaborative scaffolding instructional

One technical question:

What is the difference between the Lowest (or least) Common Denominator and
the Least Common Multiple and what different functions do they accomplish?

Keep it simple and straightforward, please.

George Demetrion
East Hartford, CT

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