A lesson in numeracy

I find great irony in the push for offshore drilling. As schools are being held accountable for improving numeracy in our students some political leaders seem to be lacking in that exact same skill when proposing policy decisions.

Offshore drilling sites wouldn't be online until 2017 (according the US Energy Information Administration), then would only fill 1.2% of the U.S.'s expected demand for oil, and 0.6% of the demand for energy.

What I find frustrating is that this isn't simply an environmentalist vs. big oil argument. The proponents of drilling are proposing the hypothesis: "Offshore drilling will reduce costs and the need for foreign oil." Look at the data. Does it seem likely that this hypothesis will be validated?
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Chart and data from Architecture 2030 via Treehugger

Awesome Video of the Week, Vol. 4

Amazing slow motion video of a lightning strike:

Most people have an emotional response to lightning. Growing up, that emotion for me was fear¹. As I got older, the fear gave way to respect, awe, and wonder. Indeed, staring out at an approaching thunderstorm on a warm summer night, watching the constant flashes of light, for me is one of the most mesmerizing sights.

In super slow motion you can actually see the streams of negative charges (often called a stepped leader) branching down from the cloud seeking out the more positively charged surface of the Earth. Generally this happens so fast the human eye can't pick it up. Once one of the branches of negative charges makes contact with the positively charged ground (or tree, or house, or whatever) the circuit is completed, releasing the stored electrical energy and creating the lightning bolt we're all familiar with.

LHC Day!

Today marks the first time the Large Hadron Collider will attempt to circulate a particle beam. This new tool in the belt of particle physicists should help prove/disprove some current grand unified theories, including the existence of the Higgs Boson, thought to be responsible for giving mass to particles.

While some people have been worried the LHC will cause some crazy reaction that will end in the destruction of the Earth (say, via a black hole), Cory Doctorow in a post at Boing Boing quoted a physics who said of the chances of the LHC destroying the Earth: "Look, it's a 10^-19 chance, and you've got a 10^-11 chance of suddenly evaporating while shaving."

In honor of this grand event, I post below the LHC Rap, which is a surprisingly good song about the LHC. If you weren't listening too closely, you could almost mistake it for a Digable Planets song (almost).

To learn more, check out CERN's home for the Large Hadron Collider.

NO CELL PHONES!

These are my observations on my current school's cell phone policy, and somewhat in response to Darren Draper's recent posts on cell phones in school. It includes some speculation, but I'm trying my best to present the background of what appears to have happened to arrive at the current policy.

In years past

[Some speculation here] Based upon stories told by teachers, students, and observations made on the first day of school (when students were generally unaware of the new cell phone policy), in previous years there were no rules against having or using cell phones during school. Indeed, it sounds as if there were no rules against having or using cell phones during class.  While this sounds better than the current policy (hang on, we'll get there), it is my speculation that things were a little too loosy-goosy. Apparently students texting one another during classes was the norm. Teachers who tried to crack down were told they weren't allowed to confiscate cell phones- or at least they weren't well supported by administration when they did. This led to a situation [biggest speculation so far] where students felt entitled to utilize their phones for whatever purposes they saw fit during all times of the school day.

The present day

Because of the many problems that occur with the use of cell
phones during the school day, students are no longer allowed
to use their cell phones during school hours. This means that
from 7:25 am to 2:07 pm, cell phones are not to be used during
class time; during passing times in the halls; during time
spent in the lav, in the library, and/or in the nurse’s office; and
during lunch time in the cafeteria. Students who bring their
cell phones to school should keep them off or silenced, and
cell phones should be safely secured in their backpacks, purses,
or lockers. It is important to note that Fitch High School
is not responsible for lost or stolen articles. In the instance
that a student needs to use a phone during the school day, that
student should notify a faculty or staff member who will
direct that student to a phone

- 2008-2009 Student Handbook

Teachers have been instructed to confiscate all cell phones upon sight during the school day, whether students are in the halls, at lunch, or in the classroom.

The (my) ideal

[My opinions] The lack of regulations in years past seems to have led to the blatant misuse of cell phones during the school day. Texting during while the class is in session, increased tardiness due to use of cell phones between classes, and other uses I do believe are negative and shouldn't be allowed. The new rules seem to have come as a reaction to this lack of regulation. Perhaps, given the environment of allowed misuse in years past the "confiscate on sight" policy is more appropriate. However, I'd hope that next year the rules would be changed slightly once the misuse has been purged.

From a recent poll of my freshman classes, I found that 87% of my students- as freshmen- have their own cell phones. As time goes on, it is likely that percentage will rise even further. This data points to the pervasiveness of cell phones in our society. Upon graduation students will own personal cellphones and more than likely take them to their place of work. In their future job's professional environment cell phones (most likely) won't be banned, but they will be expected to use their phones responsibly.

While I understand that not all (read: most) teachers are not ready to jump to the use of cell phones in class¹, I believe that all teachers are in a position to help students learn responsible management of cell phones. By responsible management, I mean students would be allowed to have cell phones in school, but would be taught when it's okay to text, take calls, or otherwise use their phones in a professional environment. I feel this acknowledges a couple of truths: (1) cell phones are not a fad, and will be a part of our lives for the forseable future, (2) teaching responsible use is more important and effective than simply banning. Banning tells our students we're afraid of their new fangled techno-tools, and as such they write off schools as not being relevant to their lives.

Taking it further

Of course, cell phones are powerful little computers nowadays. They most certainly can be used appropriately to enhance the K-12 curriculum. I have no experience with this (having worked at cell phone banned schools my entire career), but let me point you toward some resources I've come across.

Image credit: Ben Wildeboer

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¹ However I have heard teachers request calculators several times so far this year because they don't have enough. How ironic that most students are carrying calculators in their pockets, but are banned from taking them out.

Interesting Finds, Vol. 2 (dy/dan edition)

Forgoing the list of several items, this item deserves a post of its own.

geometry.mrmeyer.com

Dan Meyer has posted his entire geometry curriculum online for everyone to see. He included his presentations in PowerPoint, Keynote, and .pdf format, and has .pdfs for all of his handouts. In my opinion, this takes some real huevos (if you know what I mean). He's opening himself up to major criticism on things he's obviously spent hundreds, if not thousands, if not hundreds of thousands of hours creating. I'm not even really into geometry that much, yet I spent a couple hours perusing his stuff (and thinking it quite good, by the way). For all the criticism he may have received over the years for not giving homework or being to much of a smart alec, regardless of your feelings you've got to give him some high marks for throwing his stuff out there for anyone to use.

This raises the obvious question: Why isn't everyone doing this? I realize not all teachers have the digital know-how to post their creations online, but it seems like an obvious thing to do. It makes me feel silly for not doing it.

I've created lots of material for classes in the last six years, and am constantly working on more. Perhaps I should work on finding a way to share more of that to the world.

Dan: I'm awed by your openness and dedication to sharing your knowledge with the rest of the teaching community. Bravo!

Discovering regional differences (a.k.a. my first tropical storm)

One thing I was excited about upon moving out of Michigan, the state where I've lived for 99.2% of my life¹, is discovering the little regional differences that gives each place its true character. It's the things you wouldn't necessarily pick up as a tourist passing through for a few days that are more fun. So far there's been the unsurprising (the large number of seafood shacks), and the more surprising (finding that wearing polos with the collar popped isn't done by a large segment of the population, not just preppy frat boys; finding wearing dock shoes without socks is cool, etc.).

One of the more obvious differences is the possibility of tropical storms/hurricanes. However, Connecticut is pretty far up the coast, and upon doing a little research, I found only 9 storms have ever reached Connecticut as hurricanes since 1856; only one within the last 25 years. And while tropical storms are a little more likely than hurricanes, the last time one affect CT was when Floyd came through in 1999, nine years ago. The image below shows all hurricanes (red), tropical storms (yellow) and tropical depressions (green) to affect New London county in the last 50 years.
Hurricanes, Tropical Storms, & Tropical Depressions near New London County, CT since 1958

Tonight Tropical Storm Hanna will blow through CT, with the center of circulation coming quite close to my location (see map from Google Earth below). I'm finding myself strangely excited to get a chance to experience a tropical storm- something I feel somewhat guilty for, since people are suffering through some property damage, power outages, and probable injuries as a result of Hanna already. A tropical storm is just so different from any type of weather we'd get in the Mid-West, that I find myself looking forward to the new experience.
55pm

I'm tempted to throw on a rain slicker and some goggles and head down to the beach Jim Cantore-style as Hanna blows through (I won't really).

Images
Historic Hurricane Tracks from NOAA Coastal Services Center
Hanna's Projected Path from Google Earth

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¹ That is: 353 of my 356 months of existence.

Student technology survey

I tried out the new laptop cart at my new placement today. No one was very confident that the laptops would work well, but I used them enough at my old job ( and mostly found them quite effective) that I wasn't just going to let that cart sit there untested for long.

The last 20 minutes of each hour today I had students try to log into the school's network. I was surprised I had so few who couldn't login considering I have all 9th graders coming from 3 different middle schools and several who're new to the district altogether.

Once they were logged in I had them take a survey on their technology experience¹.

Initial results

  • 87% have their own cell phone
  • 82% have their own mp3 player
  • 92% have a computer at home connected to the internets

Conclusions

  1. Remember these are all freshmen. Most are just 14 years old. I'd imagine by the time they're juniors and seniors the percentage of students who have cell phones and mp3 players would increase to near 100%.
  2. The student body is quite diverse socio-economically and yet my percentages are very high across the board. Only 8 of my students DON'T have cell phones. Only 2 don't have internet access at home.
  3. Currently, all cell phones are supposed to be confiscated on sight from the beginning of 1st hour to the final bell. Does this policy support 21st century skills? Even if the skill being taught is simply appropriate use of a cell phone in a "business" setting (i.e. not texting during presentations, learning when and where it is acceptable to pull out their phones, etc.)?
  4. The school has about 1 computer for every 10 students (maybe even less), yet at home the ratio is probably much closer to 1:4. Are they being taught to effectively use online tools at home? They certainly aren't getting much computer time at school.

I have more data from the survey that'll take a little longer to disaggregate, but I'll share that when I get a chance to break it down.

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¹ If you'd like to see it, here it is.

Awesome Video of the Week, Vol. 2

Time lapse of slime molds and various mushrooms growing:

Slime molds are crazy organisms. They live animal-like lives for much of the time, but will eventually "settle down" when it's mated (if you can even call it that) and then release spores as if they were fungi. Some experts have argued that slime molds should be their own kingdom since they are so unique.

It's a good illustration of how science is a construct of our own species. We do our best to make observations and organize the universe into distinct categories. Sometimes, however, there are things that don't fit cleanly into our categories. These often lead to debates between groups of scientists, who eventually reach a general consensus based upon the best information available. Often when new information is discovered, we learn we had it backwards or even find out we really had no clue what was going on in the first place. All of which is OK, since it's all progress. 🙂