Math Help Google Group

Data Correction (Normalization?)

2008-05-06T20:32:10Z

Hopefully someone here can give me an answer to this question.

I have to run a statistical analysis on a data set I obtained
recently.

This is my problem:

An individual was instructed to look at three possible computer
screens and we measured how many times they fixated within a
particular area.

Teaching Money Concepts

2007-03-09T13:47:10Z

Excellent article on teaching Money Concepts in school.
" Teaching your child about money reinforces the basic number facts of
the base 10 number system: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. At first,
for younger children, you can count the number of each
denomination..." by Russ Lewis of K12Math.com
Link to full article...

reinvigorating math

2006-09-29T02:13:57Z

Hey All! Just joined.
My son is in second grade. He's very smart, but has gross motor delays
-- long story very short: at four he was eager to learn math and could
even cross subject saying things like, "Dos Plus Dos Equals Cuatro" but
because of his other delays we didn't work with him. Now in 2nd grade

Finding a Formula

2006-09-24T15:38:57Z

Valuepark charge $1.10 per hour fraction hour airport parking. The
maximum charge per day is $7.25.
(a) Write a formula that gives the charge for x hours with 0 <= x <= 24
(b) Graph the function in a and at what values of x is it continous.

Finding a Formula

2006-09-24T15:36:15Z

3 new 1st grade Addition free printables posted...

2006-02-26T02:21:05Z

3 new 1st grade Addition printables posted here
[link]
Addition Fact Sheet
Addition Fact Sheet 0-10
Addition "Print and Cut" Flash Cards

Notes for teaching Fractions

2006-02-10T02:17:19Z

Notes for teachers/homeschoolers on teaching fractions for K-8th grade.
Link posted below...
[link]

Re: Integer lesson plan

2006-01-13T19:01:53Z

hello I'm from turkey.I little speak enlish so I want to pratic.you
can help to me. would you like writting to me please:) goodbye:)

Integer lesson plan

2006-01-13T00:40:53Z

I have just completed writing up some notes for teaching integers and
posted them here...
[link]
- Russ Lewis

2-order differential equation

2006-01-09T17:38:08Z

do anybody know how to slove this second-order differential equation
y''+5y'+6y=x*(e-2x) with respect to x.
it seems a little bit nasty.

Unit Circle free lesson plan

2006-01-06T03:30:54Z

A new free lesson plan was posted on K12math.com on the Unit Circle
It covers SIN and COS as well...
Contributed by Russ Lewis of BTRware
[link]

Good Math book discounts...

2005-12-21T15:28:07Z

Found a site with good math books...very VERY good prices. Posting a
link...
[link]

distance times rate

2005-11-16T01:49:13Z

on a trip to the mountains lori drove a rate of 55 mph on the trip
back home she decided to try a route that was 10 miles shorter as it
turn out she took an extra hour to get home an average only 40 miles
per hour. find the total distance she traveled.
help

Re: circles spining together

2005-11-15T02:12:33Z

Answer posted on K12math.com
here
[link]

Re: derivatives

2005-11-14T02:28:04Z

Answer posted by Mr. Lewis
at k12math.com > math concepts > Derivatives
see link...
[link]