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K-12 math lessons, black line masters, local math tutors, math problems, math games, and math help in general.
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Data Correction (Normalization?)
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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.... more »
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Teaching Money Concepts
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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...... more »
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reinvigorating math
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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... more »
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Finding a Formula
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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.
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Integer lesson plan
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I have just completed writing up some notes for teaching integers and posted them here... [link] - Russ Lewis
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2-order differential equation
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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.
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Unit Circle free lesson plan
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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]
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