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Commutative Property

This states that when you add or multiply, you can do so in any order.

a + b + c = b + c + a
Also...
a * b * c = c * a * b

For example:
3 + 4 + 5 = 4 + 3 + 5
Another example...
2 * 3 * 4 = 4 * 3 * 2

Math video lessons by middle school students!

Student Mathcasts:

Mathtrain.TV is a free, educational site I developed to host our screencasts.

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(and the Case Study about us).

Rounding a Decimal, 2
Probability

Search in iTunes Store for "mathtrain".
We use a Tablet PC and Camtasia Studio.

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6th Grade Geometry Math Roots Quiz

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Math videos now optimized for iPod and iTunes!

Math 6

Enter for Math 6 (m6).

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Tech I

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Marcos Mathezine

Marcos Mathezine coming soon.

Mathomatic

This is just a test class.

Music and Bands

Enter everything music.

Mr. Vander Veen's Science

Teacher: Mr

Mr. Vander Veen's Science.

	Yay! Mathtrain.TV was "Site of the Week" by Teacher - Monday, 8 February 2010, 07:54 PM
	Cool news! eSchool News selected our Mathtrain.TV site for "Site of the Week". (The logo should probably read "2010" since we were picked a few weeks ago.)

	Mr. Marcos by jibbin - Tuesday, 2 February 2010, 05:01 PM
	Whats up mr. marcos

	Math by Phish Food - Friday, 29 January 2010, 03:56 PM
	Who Wants to talk about Math!

	My first post thing! by Peggy - Thursday, 28 January 2010, 08:15 PM
	Heyo past, present and future Mathtrain fans! Mathtrain Rocks!!!!!!!!!!!!!!!!!!!!!

	This site brings back so many memories.... by lilypad - Thursday, 28 January 2010, 05:11 PM
	I miss Mr. Marcos' classroom Discuss this topic (1 reply so far)

	Woah by Lochte - Monday, 25 January 2010, 07:04 PM
	I haven't been on this site FOR EVER... Discuss this topic (1 reply so far)

	Just wonderingg: by Alice - Friday, 8 January 2010, 04:07 PM
	Hey u tech-y guys out there- how do u take a pic of ur computer screen on ur computer thnkss :D Discuss this topic (2 replies so far)