Posts Tagged ‘marcos’

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

Monday, April 7th, 2014

Let’s take a visual look at the area of a circle.

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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.114, We are in Alan November’s New Book

Friday, August 3rd, 2012

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?“.

alan’s new book


Mathtrain.TV, Ep.107, Complete the Square

Saturday, March 24th, 2012

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


Mathtrain.TV: Ep.95, App is Here

Friday, May 6th, 2011

The Mathtrain App is now available in the iTunes Store.

Yup, it’s free.

Created by 8th grade student, Andrew Rothman.


Tablet PCs We Use or Have Used in our Classroom

Saturday, March 26th, 2011

by Eric Marcos

We use a variety of Tablet PCs to create our student screencasts.  We have also used iPads, Wacom Tablets and Macs.  Below, is a list of Tablet PCs we use or have used for screencasting:

The first Tablet PC I purchased was a Toshiba R25 3503.

toshiba tablet

I loved it!  Recently, I installed Windows 7 onto it.  The processor is a bit slow by today’s standards.  It’s clunky, yet durable.  Nice big screen, loud speakers and accurate writing.  I bought it in 2005 and it’s discontinued.  Almost 5 years later, it still works great!



I got a Gateway Tablet PC from school, but I don’t recall it’s model.



The company has changed since it was purchased and I have no idea if they still make tablets.  It is also clunky and durable.  Although, the installed speakers have worn a bit and they feedback at times.  So, we have to use it with the speakers muted.

For the most part, we use a Fujitsu 5010 Tablet PC.



I purchased this last year.  I like it.  My major issue is that the installed computer speakers are lame.  It is difficult to get any true volume out of them.  My iPhone plays audio louder than this computer!  It is still a bit clunky, but it has been mostly great.  I like that the screen can swing both left and right.

I also got a few HP Tablet PCs from a grant.


I am glad I did not pay for these.  I do not like them.  They are touch/pen, but the pen writing is not as accurate as the Toshiba, Gateway or Fujitsu devices.  We may have gotten a bad batch because I had to send all the HP’s in for service after only a few months.

I hear the newer HP Tablets are better.  I think this is a good entry tablet if price is a major factor.

So, if price is a major obstacle, perhaps look at the HPs.  Or perhaps purchase a Wacom Bamboo tablet.  The Wacom tablet hooks up to both Macs and Windows computers.  It can transform your current computer into a “tablet pc”. Otherwise, if price is not a major issue, then check out the new Fujitsu or Toshiba models.  I like the “active digitizer” tablets because they tend to write the best.

Some of the newer “slate” tablets, such as the Galaxy Tab, Xoom and the HP 500 Slate, seem very cool!  I want one of each!  But I’m not sure how they are for screencasting.

For my next Tablet PC, I’m looking at a slate.  I like the ones by Motion Computing and TabletKiosk, but they have slower processors and smaller hard drives.  They are also expensive.  However, I like the idea of the handle and the ease of mobility.

Well, thanks for taking this tour of some of the Tablet PCs we use or have used to create our student screencasts at Mathtrain.TV.  I strongly recommend anyone interested in buying a Tablet PC to first try it out.  Sometimes companies may even lend a demo device to a school.  If the specs list “active digitizer”, that is a plus.  And if you’re a teacher, please let the students use it!

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!

ISTE 2010: Here We Come!

Thursday, June 24th, 2010

Just a few days away from the ISTE 2010 Conference in Denver, CO.  Come see student “Bob” and me present in the TechSmith booth as well as a formal session on Wednesday!

Please come visit us in the TechSmith booth! We don’t work for TechSmith, but they were once again so kind in sponsoring our trip and presentation.  Sadly, our school district and school has never assisted us when we go present our student work.  But thankfully, TechSmith understands.  They paid for us to fly out and stay in Denver to participate in the conference.

Here’s the scoop:

ISTE 2010 Conference, Denver, CO

Wednesday, 06/30/10
1:30PM – 2:30PM
Room 504 (CCC)

Formal Session/Lecture
Sponsored by TechSmith

This session focuses on the positive effects of adopting a collaborative “kids teaching kids” model via student-created screencasts. This collaborative model helped spark student interest and enthusiasm inside and outside of the classroom. Our student-created screencast lessons (also known as mathcasts) have reached a global audience thanks to Alan November, our free Mathtrain.TV web site and our iTunes Podcast.

Actual student-created screencasts will be shown. Attendees will also learn how to create their own screencasts and watch a live student demonstration of the process.
Student, “Bob”, will be co-presenting.

Mathtrain.TV: Episode 67, Area of Composite Figures

Tuesday, May 11th, 2010

Here, we learn how to find the area of a composite figure.


iPad and the Pages App

Saturday, April 10th, 2010

I’m liking my iPad. I’m impressed by the iWork’s Apps.

Here is an example I created using my fingers on my iPad and the Pages app.

pages app

pages creation on ipad

Mathtrain.TV: Episode 47 (in 3D)

Wednesday, March 4th, 2009

World’s First 3D Mathcast.

I just got a new 3D webcam called, “Minoru 3D Webcam“.  I decided to make my first 3D video a mathcast of course.  It’s silly and really just a demo to see how the 3D effects look.

3D webcam

3D webcam

I think my students will do a better job with this camera.  Stay tuned for future math video lessons in 3D.