Posts Tagged ‘fractions’

Mathtrain.TV: EP.118, Estimating Fractions w/ “Justin”

Saturday, December 15th, 2012

“Justin”, a 6th grader, makes her debut and shows us how to estimate fractions when multiplying (and dividing).  Part of the student-created Mathtrain.TV Project.

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Mathtrain.TV: EP.117, Multiplying Fractions w/ “Selena”

Friday, December 14th, 2012

Sixth grader, “Selena”, makes her debut and teaches us how to multiply fractions!  Part of the student-created Mathtrain.TV project.

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Mathtrain.TV, Ep.106, Visual of Subtracting Fractions (mixed numbers)

Saturday, March 3rd, 2012

A visual look at subtracting fractions.  This goes along with another video we made several years ago. Here, we use pizza as a way to help visual this subtraction of fractions.

Original video with alternative method is at .
Part of our Mathtrain.TV Project.


Mathtrain.TV: Episode 80, The MegaHunk Bar

Monday, November 8th, 2010


This is the story of Rob and the MegaHunk Chocolate Bar that he ate.  But he did not eat the whole thing.  And he did not even start off with an entire bar.

See how to solve this several ways, including visually.  This problem was adapted from my former colleague, Dr. Marcy, and his Marcyworks!

As seen on Mathtrain.TV!

Mathtrain.TV: Episode 79: Kat Divides Fractions

Sunday, November 7th, 2010

Student, “Kat”, shows us another way to remember how to divide fractions.

[As seen on Mathtrain.TV.]

Mathtrain.TV: Episode 38

Friday, January 2nd, 2009

Multiplying Fractions and Mixed Numbers.


Mathtrain.TV: Episode 21

Thursday, June 12th, 2008

Quick Look at Dividing Fractions.


Mathtrain.TV: Episode 5

Friday, August 24th, 2007

Cross-canceling (multiplying fractions), with “Paul”.

(originally aired 08/24/07)

*Re-recorded for proper play on the iPod/iPhone.

Mathtrain.TV: Episode 3

Wednesday, August 15th, 2007

Using the LCD to Add Fractions, with “Billy Billy”.

(originally aired 08/15/07)