Mathtrain.TV Podcast

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Free Student-created Mathcasts (screencasts) from Mathtrain.TV. Video math lessons and tutorials mostly hosted by my students at Lincoln Middle School in Santa Monica, CA. We use a Tablet PC, Camtasia Studio and cover middle school mathematics. You can watch and listen to step-by-step explanation…

Eric Marcos


    • May 15, 2016 LATEST EPISODE
    • infrequent NEW EPISODES
    • 2m AVG DURATION
    • 123 EPISODES


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    Latest episodes from Mathtrain.TV Podcast

    Mathtrain.TV:Ep.129, Sphere and Cylinder Volume

    Play Episode Listen Later May 15, 2016 3:39


    Find the volume inside the cylinder, but outside the sphere. Part of the student-created tutorial project at Mathtrain.TV. Mathtrain.TV is a free, educational “kids teaching kids” project from Mr. Marcos and his Students at Lincoln Middle School in Santa Monica, CA.   StudentCreated.TV is a free site for sharing student-created tutorials for all school subjects. Both sites […]

    Mathtrain.TV:Ep.128, Mini Exponent Review

    Play Episode Listen Later May 15, 2016 2:40


    A mini-review of multiplying exponents. Part of the student-created tutorial project at Mathtrain.TV. Mathtrain.TV is a free, educational “kids teaching kids” project from Mr. Marcos and his Students at Lincoln Middle School in Santa Monica, CA.   StudentCreated.TV is a free site for sharing student-created tutorials for all school subjects. Both sites are mobile-enabled.

    Mathtrain.TV:Ep.127, Visual Look at Area of a Circle

    Play Episode Listen Later Apr 7, 2014 2:25


    Let’s take a visual look at the area of a circle. Part of the student-created tutorial project at Mathtrain.TV. Mathtrain.TV is a free, educational “kids teaching kids” project from Mr. Marcos and his Students at Lincoln Middle School in Santa Monica, CA.   StudentCreated.TV is a free site for sharing student-created tutorials for all school subjects. Both […]

    Mathtrain.TV:Ep.126, Vertical Line Test for Functions

    Play Episode Listen Later Feb 21, 2014 2:53


    Shane, a 7th grader, show us the vertical line test for functions.  She created this tutorial on her iPad, using the free ScreenChomp app. It’s our 7th Anniversary month!  Yay! Part of the student-created tutorial project at Mathtrain.TV. Mathtrain.TV is a free, educational “kids teaching kids” project from Mr. Marcos and his Students at Lincoln Middle […]

    Mathtrain.TV:Ep.125, Simple Interest with Student Shane

    Play Episode Listen Later Jan 20, 2014 2:27


    Middle school student Shane shows us a Simple Interest problem.  She created this tutorial using the free ScreenChomp app on her iPad and Camtasia Studio was later used for adding the pop ups.   Part of the student-created tutorial project at Mathtrain.TV. Mathtrain.TV is a free, educational “kids teaching kids” project from Mr. Marcos and […]

    Mathtrain.TV:Ep.124, How to Find the Circumference of a Circle

    Play Episode Listen Later Nov 17, 2013 1:46


    Middle school student, “Shane”, shows us how to find the circumference of a circle. Part of the Mathtrain.TV “kids teaching kids” project from Eric Marcos and his Students at Lincoln Middle School, in Santa Monica, CA. (music score written & performed by E. Marcos)

    Mathtrain.TV:Ep.123, GCF LCM Ladder Method with Kermit

    Play Episode Listen Later Jul 20, 2013 2:20


    Find the LCM and GCF using the ladder method, with 7th grader Kermit. Part of the student-created tutorial project at Mathtrain.TV. Mathtrain.TV is a free, educational “kids teaching kids” project from Mr. Marcos and his Students at Lincoln Middle School in Santa Monica, CA.   Mathtrain.TV now plays on mobile devices, including iPads & iPhones. StudentCreated.TV is […]

    Mathtrain.TV:EP.122, Visual Multiplication Fun

    Play Episode Listen Later Jul 8, 2013 4:47


    7th grader, “Kermit”, returns to show us some fun with multiplication. She recorded this by herself and edited it. Mathtrain.TV now plays on mobile devices, including iPads & iPhones!  StudentCreated.TV is a free site for sharing student-created tutorials for all school subjects!  Videos also play on mobile devices.

    Mathtrain.TV:EP.121, Statistics Mean, Median, Mode & Range with “Poseidon”

    Play Episode Listen Later Jun 8, 2013 5:25


    “Poseidon”, a 6th grader, shows us some statistics of Mean, Median, Mode and Range.  This tutorial was created on an iPad, using Doceri. Part of the student-created Mathtrain.TV Project Mathtrain.TV now plays on mobile devices, including iPads & iPhones! StudentCreated.TV is a free site for sharing student-created tutorials for all school subjects!  Videos also play on mobile […]

    Mathtrain.TV: EP.120, Shane and Integers

    Play Episode Listen Later Jun 2, 2013 2:11


    “Shane” is a sixth-grader & created this tutorial on her iPad, using the free ScreenChomp app.  “Shane” shows us some things w/integers. Part of the student-created Mathtrain.TV Project Mathtrain.TV videos now play on mobile devices, including iPads & iPhones! StudentCreated.TV is a free site for sharing student-created tutorials for all school subjects!  It is open to the […]

    Mathtrain.TV: EP.119, Pythagorean Theorem from 6th Grader

    Play Episode Listen Later Feb 2, 2013 3:05


    Sixth grader, “Poseidon”, makes his debut with a video tutorial on the Pythagorean Theorem.  He used his iPad and an app called, Doceri, to create this screencast. Part of the student-created Mathtrain.TV Project. NEWS UPDATE: Mathtrain.TV has been upgraded.  Videos now play on mobile devices, including iPads and iPhones! Coming soon, StudentCreated.TV, a free site […]

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

    Play Episode Listen Later Dec 16, 2012 2:05


    “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.

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

    Play Episode Listen Later Dec 14, 2012 0:53


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

    Mathtrain.TV: Ep.116 Comment Calculer la Puisance d’un Nombre (Solving Exponents)

    Play Episode Listen Later Nov 25, 2012 1:00


    Student, Avec Clem, is now in 7th grade. Here she shows us (in French) how to solve exponents.  Don’t worry if you don’t speak or read French, because English captions are included.

    Mathtrain.TV: Ep.115, MakeyMakey Student Paper Piano

    Play Episode Listen Later Sep 21, 2012 1:52


    Student using the new MakeyMakey kit creates a paper piano.

    Mathtrain.TV: Ep.114, We are in Alan November’s New Book

    Play Episode Listen Later Aug 3, 2012 0:50


    While we are away on Summer holiday, we figured we would share our excitement about being mentioned in Alan November’s new book, “Who Owns the Learning?“.

    Mathtrain.TV: Ep.113, Resoudre Des Proportions En Utilisant Le Produit En Croix

    Play Episode Listen Later Jun 23, 2012 1:04


    “Solving Proportions using Cross Product”.  Yes, it’s in French!  Our first!  And it is the debut from Clem, a 6th grade student from Lincoln Middle School in Santa Monica, CA.  The English captions are included.   Part of the student-created Mathtrain.TV project.

    Mathtrain.TV: Ep.112, Create a Tessellation!

    Play Episode Listen Later Jun 10, 2012 2:44


    Let’s have some fun and create a tessellation!   Part of the student-created Mathtrain.TV project.

    Mathtrain.TV, Ep.111, Area of Trapezoids

    Play Episode Listen Later May 19, 2012 2:25


    Debut screencast from 6th grader, “Pixie”, of Lincoln Middle School, in Santa Monica, CA!  “Pixie” shows us how to find the area of a trapezoid.   Part of the student-created Mathtrain.TV project.

    Mathtrain.TV, Ep.110, Reflection App for iPad

    Play Episode Listen Later Apr 21, 2012 0:59


    A quick look at how to start using the Reflection App on your Mac so you can share your iPad/iPhone screen. The cool thing is you can move around the classroom with this app on and iPad or iPhone camera on and have a “portable, wireless document camera”! If you want to show it on […]

    Mathtrain.TV, Ep.109, Remembering the Nines

    Play Episode Listen Later Apr 15, 2012 5:59


    6th grader, “Kermit”, shows us 3 interesting ways to remember the 9’s – – multiplication by 9. She recorded and edited the entire screencast by herself! Part of the student-created Mathtrain.TV project.

    Mathtrain.TV, Ep.108, Basic Trig with Paul

    Play Episode Listen Later Apr 2, 2012 1:54


    “Paul” returns from high school to do a basic trig video. She shows us the famous “soh cah toa” used in trigonometry. Part of the student-created Mathtrain.TV Project.

    Mathtrain.TV, Ep.107, Complete the Square

    Play Episode Listen Later Mar 24, 2012 4:00


    An algebra student had this question for homework.  This is a tutorial for a completing the square problem from Mathtrain.TV.

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

    Play Episode Listen Later Mar 3, 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 http://youtu.be/yXiG2iv1Vq8 . Part of our Mathtrain.TV Project.

    Mathtrain.TV, Ep.105, Fraction Busters w/”Rebecca”

    Play Episode Listen Later Nov 25, 2011 2:33


    7th grader, “Rebecca”, introduces us to fraction busters – a way to simplify solving equations.    

    Mathtrain.TV: Ep.104, Solving Equations w/ Variables on Both Sides

    Play Episode Listen Later Oct 28, 2011 1:38


    7th Grader, “Betty”, debuts with her tutorial. She takes the word problem, translates it into algebra, and then solves it. There are variables on both sides of the equation.

    Mathtrain.TV: Ep.103, GEMDAS with Kermit and Freckles

    Play Episode Listen Later Oct 16, 2011 3:02


    Another debut from two 6th graders, Kermit and Freckles (not their real names).  Watch these two simplify a problem using the order of operations (also known as PEMDAS and GEMDAS). “Kermit” did 100% of the editing and this was her first time ever using Camtasia Studio!

    Mathtrain.TV: Ep.102, Multi Step Equations with Rachel

    Play Episode Listen Later Oct 9, 2011 1:56


    7th grader, “Rachel”, makes her debut showing us how to solve a multi-step equation.

    Mathtrain.TV: Ep. 101, Evaluating with Swifty and Patrick

    Play Episode Listen Later Sep 24, 2011 1:24


    A new school year and “Swifty” & “Patrick” make their debut video here on Evaluating Algebraic Expressions!   Part of the Mathtrain Student-Created Project at Lincoln Middle School in Santa Monica, CA.

    Mathtrain.TV: Ep.100: Writing Repeating Decimals as Fractions in Simplest Form

    Play Episode Listen Later Sep 13, 2011 2:49


    A look at how to write repeating decimals as fractions in simplest form.

    Mathtrain.TV: Ep.99, ScreenChomp

    Play Episode Listen Later Aug 6, 2011 2:11


    Screencasting on the iPad!  For Free! In this episode, the ScreenChomp App is showcased.   It is meant as a rough “tutorial” and mainly as an introduction to the possibilities we might have using this with our students.    

    Mathtrain.TV:Ep.98 Special Episode: FluidMath

    Play Episode Listen Later Jun 8, 2011 3:12


    This is a special episode of 2 demo-screencasts of FluidMath. FluidMath is a cool, new math software for tablet pc and IWB users.  It can recognize handwriting and then solve, graph and animate on the fly.   Their Web site is http://www.fluiditysoftware.com/.

    Mathtrain.TV: Ep.97 Google SketchUp is Cool

    Play Episode Listen Later May 26, 2011 1:16


    A quick look at how easy it is to create cylinders and prisms in Google SketchUp (free). http://sketchup.google.com/

    Mathtrain.TV: Ep.96, Reflections with Kat

    Play Episode Listen Later May 11, 2011 1:37


    “Kat”, a 7th Grader,  returns to shows us something she recently learned… “Reflections”.

    Mathtrain.TV: Ep.95, App is Here

    Play Episode Listen Later May 7, 2011 0:53


    The Mathtrain App is now available in the iTunes Store. Yup, it’s free. Created by 8th grade student, Andrew Rothman.

    Mathtrain.TV: Ep.94, Spread the Word to End the Word 2011

    Play Episode Listen Later Mar 2, 2011 1:12


    Spread the Word to End the Word message Our Lincoln Middle School students wanted to share this important message about the “R” word.  We are rebroadcasting this video today, on 03.02.11.  Thanks!

    Mathtrain.TV: Ep.93, Simple Interest our 2nd Student Mathcast, 2007

    Play Episode Listen Later Feb 26, 2011 2:31


    This is a remix (we added music) of our 2nd student-created mathcast which aired in 2007.  “Billy Billy” was not her real name.  She picked this name as her alias just after “Bob” picked her alias.

    Mathtrain.TV: Ep.92, Simple Interest via Banking in HD

    Play Episode Listen Later Feb 16, 2011 4:51


    Simple Interest in the setting of banking. We are trying this one out in HD.

    Mathtrain.TV: Ep.91, Percent of a Number

    Play Episode Listen Later Feb 12, 2011 2:50


    Here is a look at how to figure out “percent of a number” problems using a proportion.

    Mathtrain.TV: Ep.90, Finding Percents

    Play Episode Listen Later Feb 12, 2011 2:26


    Watch 6th grader, papatom, explain how to find percents.

    Mathtrain.TV: Ep.89, Unit Price

    Play Episode Listen Later Jan 22, 2011 2:26


    Let’s find which is the better buy!  We will find the unit price (unit rate) to compare the two items.

    Mathtrain.TV: Ep.88, Metric Conversions II

    Play Episode Listen Later Jan 6, 2011 2:31


    Another look at metric conversions.

    Mathtrain.TV: Ep.87, Binary with Drew

    Play Episode Listen Later Dec 14, 2010 2:34


    Lincoln Middle School student, “Drew”, shows us binary numbers!

    Mathtrain.TV: Ep.86, Input Devices via The Forge

    Play Episode Listen Later Dec 10, 2010 12:04


    This special episode of Mathtrain.TV is a partial rebroadcast of a TechSmith show called, The Forge. In this rebroadcast, Matt Pierce is joined by Dave McCollom (both of TechSmith fame) and they discuss different ways to screencast. Specifically, they focus on various input devices one can use to create screencasts. We are extra excited, because […]

    Mathtrain.TV: Episode 85, Inequalities with Vincent

    Play Episode Listen Later Nov 30, 2010 1:24


    “Vincent” makes her debut.  She shows us how to work with an inequality problem.

    Mathtrain.TV: Episode 84, How We Screencast

    Play Episode Listen Later Nov 28, 2010 5:00


    We take a moment to show you how we create a screencast.  It’s just a general overview.  We can get more detailed in future videos.

    Mathtrain.TV: Episode 83: Our Screencasting Ingredients

    Play Episode Listen Later Nov 27, 2010 1:27


    This is a quick video showing the ingredients we use to create our screencasts here at Mathtrain.TV.

    just testing something… nothing to see here

    Play Episode Listen Later Nov 22, 2010


    This is just a test video to try something new… perhaps. Hopefully this video will be viewable on the ipad and iphone.  And hopefully it shows up in itunes.

    Mathtrain.TV: Episode 82, Fun Promo

    Play Episode Listen Later Nov 15, 2010 1:00


    This episode was created for fun.  The students like strange, new things.  So here is something for that.  It is a short, animated promo for Mathtrain. We created this using the free xtranormal software.  Xtranormal could have some nice uses in the classroom or for student projects! Enjoy!

    Mathtrain.TV: Episode 81, Percents to Fractions

    Play Episode Listen Later Nov 11, 2010 1:15


    Student, “Phinease”, returns to show us a quick and easy way to remember how to convert percents into fractions.

    Mathtrain.TV: Episode 80, The MegaHunk Bar

    Play Episode Listen Later Nov 8, 2010 4:00


    Fractions! 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 […]

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