Newton’s Law of Cooling!

This post is to give information to my Alaska Math Consortium classmates and teachers. In the first two videos, we have the data collection via digital infrared thermometers and a video.

In the second two videos, the calculus students present their equations and graphs of their results to the class.

To gather your own data from the videos, make a table of values, then start in!


Stove Data

Newton’s Law of Cooling states that the rate of change in the temperature of an object is proportional to the difference between the object’s temperature and the temperature of the surrounding medium. The differential equation that arises from this is: y’ = k(Y-t)



Laser Printer

This is a short video and the paper drops from 176 degrees to 75.5 degrees in about 2 minutes.


Mug Data Video

Video is spliced together from 4 videos and is quite long. One would want to pick an interval to use like, say 5 minutes. (very long: 56 minutes!) Turns out, a cup of water takes much longer to cool down than a piece of paper.


Chris & Blake do a rap up. The battery on the camera died before the end.


Chris and Blake do a find job in this video. Unfortunately, the battery died before the end of their presentation.


Hunter and Abby do their presentation.

Abby and Hunter have a nice wrap-up here.

Mark counts by tens!

As we relaxed around the house tonight.  Holly and Mark got ready for the annual 100th day of school celebration that the Kindergarten holds every year.  Before we knew it, Mark was sitting there counting by tens.

Check it out.

My Class notes are online again! Yipee!

I guess Ken fixed my web-site a few weeks back, because the web-site he gave me a few years ago is working again!  the web page, in Internet explorer 7 anyway, looks almost exactly like the pages in OneNote that I write in class.  I host my notes and my old wedding album samples there.

CLICK HERE!! to see my notes page.  Drop me a line if you have any problems loading the page and tell me what browser you’re using, what type of connection you have, and any other pertinent information you can think of.

Notes online

The pages don’t load SUPER fast, but reasonably fast for DSL, which I have at home, and there are no click-able links plus the backgrounds with the graph paper is not visible, but hey, at least the assignment sheets are there and the problems are there worked out. Notes close-up: see below.

notes closeup

I’m just excited that the web page is good again. Students can click on their class along the top, then select either the assignment sheet or the appropriate lesson  on the right. PLUS, since the web-site was working, I was able to get a gig shooting a wedding down in Sitka in April, as Mother-of-the-Bride was able to view my album on the web-site.

Obama wins.


Whether you’re for him or against him.  It looks like Obama is going to win.  This is my first glimpse of the results, after coming to school to grade some tests.


Here’s the Fox news headline…image

Notes are online…

My MS OneNote 2007 Class Notes are online!

I’m so excited about it, I can NOT believe it.

One of my goals for technology in my classroom this year was to get my class notes and assignments all online on a daily basis for my classroom.  For me, this was a big goal, because math text is notoriously difficult to handle on the web without using a lot of mouse clicks and specialized software.

Thanks to Ken Heiret (Holly’s Brother-in-law), I now have the notes uploaded to my folder on his server and viewable to the world.  This is so exciting, I can’t believe it.  I’ve wanted to do this for about 2-3 months now, and I finally got it done.

Here’s the link: CLICK HERE!!! It looks like this, if you follow the link.

OneNote site photo

One of the things that strikes me almost immediately, is that I need the opening page to be compelling and more general for people that might find the site that aren’t my students.  I’m think there could be an introduction page that has general facts about me and perhaps a picture or two of my classroom and the school.

Looking at the structure of the site, we can see that the tabs at the top are the tabs for the individual classes:

OneNote site tabs at the top

OneNote lesson tabsThe tabs down the side are links for the “Assignments” and the “Lesson Notes” for particular lessons.

I  really like the interface in many ways.

  1. It’s really easy to find the notes for any day in class for any lesson and they are automatically filed by date. 
  2. There is an assignment sheet at the top of each page.  Plus it’s an easy upload.  At the end of the day, I convert all the
  3. notes to mhtp files, then I upload them to the server. 
  4. The whole process of getting the notes online takes about 20 minutes at the end of the day and a few mouse clicks. 
  5. I access the server using Windows Remote Desktop.
  6. The notes are viewable by anyone using Internet Explorer 7 and connected to the Internet.
  7. Students can visit the page to find the assignments for the week or look at the notes in that have been given.

Some things I’d like better are:

  1. if the graph paper background was also uploaded with the files so that it would appear under the notes, just like it does in class, that would improve the look of the graphs.
  2. If I could imbed web links in the pages, that’d be wonderful for making links to web resources.
  3. If there were some way to make the site interactive without requiring a purchase of OneNote, which is unavailable for Mac. 
  4. More than half my students use Mac laptops and almost none of them have OneNote.
  5. If my handwriting were better, then the pages would look better.
  6. If the files uploaded were a bit smaller, then the pages would load quicker.
  7. If the files would be viewable on Safari and Firefox, then all the students could view them.  I’m sure there are workarounds for this, but I don’t know what they are yet.
  8. It’d be nice if I could replace the big ad for OneNote 2007 with a .jpeg of me in my classroom, or of the school, or some other picture.

Right now the pages that are uploaded are all .png files, which are compressed image files, and have about the same resolution as a standard FAX–not the greatest, but legible.

One workaround for getting the graph paper would be to put an image of some graph paper on the page I’m writing on and then do the graphs on the image of the graph paper.  For now, I’m simply making the graphs a little more detailed than I might normally do since by putting in more of the coordinates for the points along the x and y axes.

As soon as I got it done, I was on the phone with Jack and he was trying to view the notes and he couldn’t because he was not using Internet Explorer 7. 

Here’s a picture of the Tablet PC LE1600

I like using MS Office’s OneNote to write, store, and organize my notes in class.

Here’s a screen shot of the program.


You can probably just barely see the colored tabs across the top that say Algebra II, Pre-Algebra, Algebra I, Geometry, 5th Algebra I, Bus. Math, and Adv. Math, but those are the tabs for the class notes for each of those classes.  Then along the right-hand side of the screen, you probably can’t see what the tabs say, but they say, Assignments, Lesson 75, lesson 76, lesson 77, etc: these are the tabs that lead to the assignment sheet and the notes for those lessons.  This is the way I used to organize my notes in school (except that there were pages I tore out to turn in to the instructor or professor).

Here’s a picture taken from right near where I usually stand in my classroom IMG_1923which includes the tablet in the lower right corner and the screen at the front of the room.

I  really like this program MS OneNote and how it simulates a notebook, but saves everything in an organized fashion that I’ve written and allows me to display it all for the students to see, and print anything out for them as well.  If a student is absent, I can just print out the day’s notes and the assignment sheet for him, or her, by hitting print and the notes go to my personal, 21 PPM Network Printer (HP 4100), which duplexes, at the back of the room (which I bought four years ago for $500).

Of course, what makes this all possible is that we now have digital projectors in each class and brand new 5’x7′ screens to project onto.  If you’re a teacher, and don’t have a projector yet, start squeaking and get one of these projectors.  It’s much better than using the overhead projector or the whiteboard.  I’m storing my old overhead projector in the brown closet in the corner, incase some of this hi-tech stuff goes down.

I just called Motion Computing and told them my serial number (by going into the bios) and they said they’d send me the recovery CDs right away by next day air.  They haven’t arrived yet, but I am very impressed with their customer service department.  I don’t need them at this point, but may need them at some point in the future.

My LE1600 has a 30gig HD and 1.5GB of ram.  I just upgraded the memory from 512MB and am going to start searching for a hard drive imaging program that will allow me to image the 30GB HD over to a 60 or 100 GB HD.

I’m going to be getting OneNote 2007 in the mail any day, and then I’m going to start actively looking for a way to transfer these notes to a shared spot online using Microsoft’s SharePoint server software (I think that’s the name) then the students in the classes can access the day’s notes and the assignment from the Internet.

The TABLET is in!

And it’s better than I thought it would be.

Well, last Tuesday, I got the Motion Computing LE1600 in the mail  and started to learn how to use it.  I tried the two main tablet applications: Windows Journal, and OneNote.   I have to say that OneNote is an awesome program and that the LE1600 is a wonderful tool for lecturing on math.  The kids love it, I love it.  Frankly, it’s awesome.

I will go into detail later.  But it’s very easy to use and very intuitive–almost organic.  I really can’t say enough good about it.  The school bought the wireless adapter for it, so that should be in pretty soon too.

I am expecting to get MS Office 2007 with OneNote pretty soon too, and I simply can’t wait!

Also, I went to and ordered another GB of RAM too. 

More later…

Oh, I’m low on cash right now too. 

It happens.

Tablet hasn’t arrived yet…

I contacted him and here’s what he said.

I wrote an email to the dude that sold me the Motion Computing LE1600 and he said he was very, very sorry.  He’d had a family emergency and just wasn’t thinking straight.  Here’s what he said, “I only use the post office for my junk-mail and first class mail, so I only go to the post office about once a week.  So I mailed the laptop two Monday’s ago, like I said, then I went to the post office this post office, and I had a parcel, but the line was so long I didn’t bother to check to see what it was, then I went in there today and it was the laptop.  I’d return address mixed up with the ‘send to’ address and so it came back to me.”

We went on to apologize profusely and repeatedly, that his mom was dying, etc.  So I really had no choice but to wish he and his mom well and ask him if he’d sent the tablet PC to me yet.  He said he’d already sent it 2nd day air to me so it should be in by Saturday or Sunday. 

At least he didn’t send it Parcel Post.

I ordered a Tablet PC!

Well, Actually, I won an auction for a used Motion Computing LE1600, Centrino.

ScreenHunter_03 Mar. 18 13.58 When I was at the ASTE 2008 Conference, I attended a session by Mike Truskovsky from GoldenView Middle School in Anchorage and was astounded at the ease with which he was able to lecture, and demonstrate Algebra I skills using his wireless tablet PC. I just had to get one to try it out.

The latest model the Motion Computing has out is the LE1700, and it is a fine machine: Core 2 Duo, 4 gigs of ram (max), 60 gig HD (max), ViewAnywhere display, high resolution etc. I didn’t have the money for the latest generation but was fine with getting a Pentium M machine (Centrino chipset), as the battery life is quite acceptable. The final auction price (including shipping) was $641: 1.5 Ghz, 512 MB, 30 GB HD, Bluetooth keyboard, Bluetooth Mouse, and AC adapter (and hopefully the recovery disks) were included in the price.

I want to use Windows Journal to write the notes and Windows OneNote to organize them (if that will still allow me to post the notes online). Hopefully, I’ll be able to get students in some of the classes to present lessons too.

When it gets here (UPS), I’ll write another post about how well it works.

Two, Four, Six, Eight,…

Dude(tte).  Mark is learning to skip count!

Holly and I were rehashing the week, the day, our lives, etc: you know what couples do on the weekends when they get back together after some time apart, realigning their life stories so they stay on the same page when we were interrupted:

Luke yelled out from the pantry, “I can’t get down!”

IMG_0443Mark took off running for the pantry yelling, “I’ll get you down, Luke! I’ll get you down”

Muffled noises followed with a couple of loud bangs, then some giggles.

Mark: “Watch this Luke, I can get up and back down. Twice! Watch”  A couple of loud bangs followed, then some more laughing…

Mark: “Two, Four, Six, Eight, Ten, Twelve! Hah!”

Holly: “Mark, where did you learn that?”

Mark yelled back, “That’s what is says right here on the washer!”

Cool.  Skip counting is a prerequisite to many later math skills.

After the excitement died down, during the bedtime snack, I was able to quiz him and he was able to get to 16, correctly with no assistance, but then skipped to 19.  I’s too bad that the teens are so different sounding than the rest of the deciles; the units, twenties, thirties, forties, etc., all end with the number units digit number, but the teens all end in ‘teen.’  Why is that, I wonder?  Did we used to use base 20 like Inupiaq, Yupik, and other Circumpolar natives?