Author: Dale

Don’t wait. Change your light bulbs.

Dale

I’m a compact florescent light bulb.Here’s a green fact: a 26 Watt compact florescent light (CFL) is as bright as a 100 Watt incandescent bulb and only uses a quarter of the energy. To top that off—the CFL can last 7-10 years longer.

That’s money in the bank. Why wouldn’t you buy the CFL?

Some people are concerned about the mercury in florescent bulbs. It’s a legitimate concern; mercury is a toxin. However, the mercury is manageable. If you break a CFL, get out of house and let it air out for fifteen minutes. When the bulbs burn out, they need to be recycled—don’t throw them in the trash.

The folks at LighterFootsteps.com share five ways to recycle a CFL. They suggest Earth911.org as a place to lookup recycling centers in your area. However, I found more success by calling my county’s local waste and recycling center.

Finally, in case you need a celebrity endorsement to change your bulbs, here’s an interview with Bill Nye that Brian Bartel and I did for the National Science Teachers Association. (He talks about CFLs 16 minutes and 10 seconds into the show.)

This website is going green!

Dale

PC Magazine Green CoverageLast month PC Magazine had a Green Issue that featured all things green in the technology world. So in the spirit of Earth Day this website is going green for the week.

To start things off I’d like to point you to PC Magazine’s Green Coverage. Here you will learn about:

Kudos to PC Magazine for its Green Coverage. They’ve put together some great resources that I think are perfect for consumers and work well in the classroom too.

For example, I put their 48 green facts into a slideshow for students to watch as they shuffle into class on Earth Day. Below is the slideshow or you can download the PowerPoint version to use in your own class.

Happy Earth Day!

Don’t turn off the Earth Day shows

Dale 1 Comment

With Earth Day just around the corner, several television stations are serving up informative and conservation-friendly programs. Unfortunately, next week is also Turnoff TV Week. (I’ve ranted about this before; I’m not a fan of the cause.)

Find Earth Day Related TV

It appears that the folks at the TV-Turnoff Network have broadened their focus since last year. They’re now calling themselves the Center for Screen-Time Awareness (CSTA). This seems like a step in the right direction but did they have to run Turnoff TV Week at the same time as Earth Day? I suppose that turning off the TV will save energy but you might miss some great learning opportunities too.

So, in the spirit of “screen-time awareness” I like to suggest TV Guide’s website as a way to start “taking control of the electronic media.” TV Guide’s website has an excellent TV Listings page that allows you to customize the view and show only the channels that you want to watch with your children.

Find an Earth Day program that is just right for you. Perhaps PBS or The Science Channel might be a good place to start.

Edit Your DVD Movies for the Classroom

Dale 4 Comments

Trim DVDsWhen I was a freshman in high school my English teacher (yeah, it was still called English back then) decided to show us a movie version of Romeo and Juliet. However, the movie had one nude scene that my teacher tried to fast-forward through. But, just as you might suspect, her finger on the controls slipped and the whole class got to see a side of Romeo that we did not expect.

Today we can avoid problems like this by ripping and editing DVDs. Ripping is the process of copying audio or video content from a CD or DVD to your computer’s hard disk. Once it is on your computer, you can trim and edit the DVD’s content down to something more appropriate and meaningful for the classroom.

As a physics teacher, I’ve done this when I wanted to show several clips from several different movies in one class period. It would be impractical to spin up each DVD (especially the ones that have previews that are almost impossible to get around). Instead, I put all the clips I want on one disc.

To get started, you’ll need to first BUY THE DVD. Seriously, don’t steal movies. If you use it for class, then buy it for class. If you copy DVDs that don’t belong to you, then you’re basically telling your students that it is okay to plagiarize, cheat and steal.

Cut out Ben Stein with DVD ShrinkNext, you’ll need to find software that will rip your DVD. Tekzilla, a technology question and answer show, did a round-up and review of DVD ripping software. (Fast-forward to 7 mins and 29 sec to learn more.) I’ve been using DVD Shrink to rip my DVD’s. Not only does it allow you to copy the DVD to your computer, but DVD Shrink also lets you change the size of the files by recompressing the video or removing the extra audio tracks. It even has the option to trim video clips. So when an actor like Ben Stein does something nutty, you can just cut him out when you make a backup copy of your favorite movie. Ahhhh, now I can watch Ferris Bueller again.

Lastly, you’ll need to burn the new files back to DVD. For this you’ll need a computer that has a DVD burner. Of course, you could also put your clips on a USB flash drive and just play them with something like VLC Media Player.

Happy ripping!

Students need to learn multi-tasking too

Dale 4 Comments

MultitaskingAs we are bombarded with interruptions from cell phone calls, email notifications and instant messaging alerts, we are forced to multi-task. I recently heard this subject discussed on the podcast Quirks and Quarks from the CBC. The show took a scientific, and even playful, look at multi-tasking.

Research has revealed that the average office worker only gets three minutes to focus on a single task before they are interrupted. The research has also shown that multi-tasking allows workers to finish their work in less time and without any affect on the quality. However, these same workers are experiencing higher levels of stress and frustration.

The show also explained that young people may be more successful at multi-tasking since they are getting more practice as they grow up in our digital world. But the researcher worries that people will not be able to think deeply about the work they’re doing.

The show has made me think about some new questions in regards to 21st century learning:

  • If our students will be expected to multi-task when they enter the workforce, how can teachers give them more experience doing this at school?
  • Since multi-tasking is leading to more stress, how can we help student keep their stress levels in check?
  • Should we be concerned about our students’ ability to think deeply about a topic?

When it comes to multi-tasking, I often think we’re giving students too much credit. We hear people describe our students as ‘digital natives’ who just know how to cope in today’s fast-paced and distraction-filled world. Yet, Quirks and Quarks made me question this entire notion. I grew up in a world that has always had cars. Did this make me an ‘automobile native?’ My grandfather was born when the world didn’t have cars. Did this make him an ‘automobile immigrant?’

I think we need to drop these buzzwords and focus on what is certain– new technologies bring new solutions and new problems. Multi-tasking has increased due to new technologies and they have also changed our daily environment. Just because this environment isn’t new to our students doesn’t mean that they don’t need to learn how to live successfully in it.

Build a periscope; stream video to the web

Dale 2 Comments

This weekend I had a chance to attend Darwin Day at our local university. It was a fun event and a chance for me to try out Ustream.tv. This site allows you to broadcast video to the web instantly. All you need is a webcam and an Internet connection.

My Wi-Fi connection at Darwin Day wasn’t as strong as I had hoped but I was still able to broadcast the event and Ustream.tv even stored the video for later viewing. Below you can see Brian Bartel (from explodingsink.com) kick-off the event.




I mentioned that you can use a webcam to capture the video. My MacBook has an iSight camera built in however I wanted to look at the screen while it was recording. Using a Cheez-it box, a mirror and the directions found here, I made a periscope for my webcam. Below are a few pictures from the process. I suspect with a little trial and error, you could make one of these for any laptop.

mirror p1010926.JPG p1010928.JPG
p1010934.JPG p1010933.JPG

You will need to use software to flip the image since the mirror creates… well, a mirror image. I used the trial version of iGlasses from Ecamm.com. For only ten dollars, iGlasses will also allow you to zoom and pan, adjust brightness and change the colors.

If you’re not in the mood to build your own brackets and cut up mirrors, Ecamm sells the Huckleberry. The Huckleberry has durable plastic mounting brackets and an acrylic mirror. It sells for twenty dollars and comes with iGlasses. (I would have purchased this myself if it wasn’t out-of-stock when I needed it.)

Many camcorders will work with Ustream.tv too. A camcorder will give you a high quality video and it’s perfect if you’re planning to broadcast regularly from a fixed location—like a classroom! Below is video stream from Brian Bartel’s class last week on what he calls Combustion Day.




Lastly, I should mention that Ustream.tv lets users chat with other users who are watching the live video. This would be great for an evening event that only the teacher can attend. The teacher could broadcast the video while the students are watching online and holding a discussion via chat.

‘This I Believe’ -an assignment catalyst

Dale

This I BelieveOver winter break I had a chance to read a few books. My favorite was “This I Believe: The Personal Philosophies of Remarkable Men and Women” from NPR. The book presents a collection of essays from NPR’s radio program of the same name.

The collection showcases the personal beliefs of citizens. Some essays are from the 1950’s and the others began in 2005 when the show was resurrected.

I highly recommend the book in audio format since you can hear the essays read by their authors. Most of the recent essays can also be heard (and read) at the NPR website.

NPR also describes how people can submit their own essays. They discuss how this idea has been used in classrooms across the world. The obvious assignment is to have your students write their own creed. Here are some additional ideas that I think might work too:

  1. Don’t write it- say it! Have students create an audio version of their essay. Students can record their work with Audacity. The essays could be shared as podcasts allowing students to receive feedback from their peers via comments.
  2. Students could pick a character from a novel and write the character’s ‘I believe’ statement.
  3. Write an essay for a prominent person in history. For example, what do you think Lincoln would have written?
  4. Come up with a class creed- a “This We Believe” essay. If students used a wiki, they could compose this essay collaboratively throughout the semester.

My experience with an interactive board

Dale

Interactive BoardAt the start of the school year I was fortunate to have an Interwrite Board installed in my classroom. The Interwrite Board is an interactive board (IB) that works in concert with an LCD projector. Another well known IB product line is produced by Smart Technologies. Both allow teachers to control a computer by marking on the board. My board uses a pen that doesn’t leave behind real ink but it can allow me to draw, move objects around and control any software on my computer.

Here’s how I’ve been using it so far:

  1. demonstrating software: Teaching science demands the use of software for data collection, data analysis, graphical analysis, and video analysis. The IB has helped students become familiar with new software. They seem to pick up new software much faster once they had a chance to manipulate and control it with the interactive pen.
  2. practice problems go digital: My students in physics often work in small groups to solve and then present assigned problems using a white board and dry erase markers. This process has always had tremendous pedagogical advantages. Now the process has improved even more because I take pictures of their white boards and project them onto the IB for discussion.
    There are several advantages to this process:

    • the white board is bigger
    • the work is saved for continuing the next day, an absent student or review at a later date
    • while the students can annotate their white board in front of class with the interactive pens, I can interact from the back with mine (I also have the AirLiner from Smart Technologies)
  3. Create Podcasts: Work done on the IB can be recorded (audio and video) and posted to the web for further discussion and review. You can see examples of my videos here.

Here are a few reasons I like using the interactive board:

  1. I can look at my audience when using it. In the past, when I needed to demonstrate software for example, I was forced to look at the computer screen. I wasn’t looking where the students were looking. There is a disconnect here that is similar to the one when you are staring at the top of an overhead projector while your students eyes are focused behind you. Now all of us are looking at the same thing.
  2. The ability to save, go back and start over. I save so much time with the IB because I don’t have to erase things. If problem seven brings up new questions in problem one I can pull up question one in a flash. New questions come up? Click new page and off we go. It’s like an endless chalkboard that doesn’t show the faint, half-erased work of the hours before. I still have a chalkboard- over twice the area of the IB. I use this for things I want to keep up long-term, quick calculations for students in lab, and of course the “please see me” notes.
  3. It is a better drawer than me. I use the lines, shapes, clip art and endless colors to drive home our discussions. When I teach vectors, the colored arrows can be copied and slid around to explain things like vector addition. This is a huge time saver and something I never could have done with chalk.
  4. Students are eager to use the interactive board and feel privileged to have it in their classroom. I know that these sensations will probably subside as the technology becomes more commonplace but right now I have students asking to use it. Having students proud of what their school is providing is a good thing.

Santa violating data privacy laws

Dale

SantaIf Santa stops at your house, you may want to inquire about his privacy policy.  A recent report has raised several serious questions about the data Santa collects on our children.

Santa keeps a list of every child in the world, which he uses to track if they’ve been naughty or nice during the previous year. It’s unclear whether Santa uses data from credit bureaus and other third parties or if he relies exclusively on his own observations.

To date, Santa hasn’t disclosed the privacy safeguards for this data, a possible violation of several laws.

It’s also unknown how long Santa keeps this information. British law says that organizations must not keep data longer than necessary, which would require Santa to destroy the data he collects on December 25, although Pinsent Masons argues that Santa could keep this information for several years to protect against toy-related lawsuits. If the data Santa collects includes health (“I broke my leg this year”) or financial data (“our family can’t afford new toys”), he could be violating U.S. data laws as well.

Of course, Santa has been sneaking in and out of homes for centuries. Even if Mr. Claus is charged, I doubt we could ever apprehend him.

By the way, scientists have been investigating Santa too!

Enjoy the break.  See you in 2008!

21st century skills- show us your best

Dale

Take a trip back in time in the archives of Google News and you can find all sorts of papers, books and headlines with the following themes about education:

  • education needs to be more relevant to life
  • we need to foster more creativity in the classroom
  • we’re failing to teach our students technology skills
  • students aren’t asked to think critically
  • the U.S. will fall behind because of our education
  • student learning needs to be more hands-on

Sound familiar? Talking about the future of education seems like a national pasttime that often predicts gloom and doom scenarios.

The craze for the past five years has been the idea of teaching 21st century skills. Many people have made a career by talking and writing about these new skills. But take a look at them. Is there really anything new here? The Partnership for 21st Century Skills lists media literacy, critical thinking, creativity, collaboration, and civic literacy as just a few 21st century skills that will “…align classroom environments with real world environments.”

But haven’t these skills always been taught in school? The only new thing on the list seems to be global awareness. However, this topic has been misrepresented with nationalistic chatter that tried to scare every teacher and student with images of construction companies in China and India.

I don’t think that we should ever stop stressing the skills that are now being called 21st century skills. I just find it insulting to consider that these skills are new. This is an insult to all the excellent educators who have made the U.S. what it is today.

The fear mongering also needs to stop. We are not going to motivate our students with a laundry list of over-hyped statistics.

The best way to improve education is to improve the teacher in the classroom. Instead of providing examples of what should be done, show us the real thing. Join a professional organization and present lessons that worked in the classroom. Get on a social network (like Twitter or Facebook) and share a successful activity.

Let’s make showing off our finest teachers, and more importantly their work, the real 21st century skill.