Natural World – Page 73 – Montessori Muddle

The fundamental “Need” for Electronics

elf-phone — Renaissance Faire Elf Using Cell Phone. (Image by Zoomar). The caption for the photo is priceless, 'I just want to state for the record that a cell phone at a Renaissance Faire is anachronistic and wrong. Being an Elf, however is 100% historically accurate.'

What are the fundamental needs of life (as we know it)? Energy, water, living space and stable internal conditions. These are physical needs of all organisms from bacteria to plants to mammals. Humans share these needs too, and this was one of the things we talked about in natural world this cycle. However, in social world studies we also discussed how people have psychological needs that, as far as we can tell, are different from those of single celled organisms: celebration, community, entertainment, and, among other things, what my students call understanding, which includes religion and spirituality.

My technophilic students also interjected that we, humans, have a need for electronics.

Electronics? My first thought was that they were being facetious, and they may have well been. But as we talked about all the other needs during our synthesis discussion last Friday I began to realize just how fundamental electronics have become to life as we know it.

Electronics are tied into the way we meet those fundamental physical needs. Organizing shipping and distribution of food requires complex scheduling software and databases. The operation of the pumps that extract our groundwater and deliver it to our houses are controlled by microcontroller. With MRI’s and computerized records our health and well-being (maintaining those stable internal conditions) are increasingly influenced by electronic technology. And in our homes, the elegant knobs and dials of thermostats on furnaces and ovens are giving way to smooth if inelegant digital displays.

Even our understanding of the world we live in, of the effects of global climate change for example, is based predominantly on sophisticated computer models and confirmed by computerized satellite systems (see NCAR for example).

So have we reached the point where electronics are a fundamental need of society, and how long will it be before we as individuals become inseparable from our electronics devices? Are we all cyborgs now? And the ultimate question: Should we be teaching more electronics in middle school?

Luring vultures

The theme for this term’s Independent Research Project is Life on the Nature Trail, and my students are required to do some actual field work on the species or taxonomic group they’ve chosen to investigate. One students chose vultures because they saw one in the clearing just outside the trail and we’ve occasionally caught sight of one soaring over the campus.

He’s been trying to lure one in for a closer look.

Since I’ve vetoed the idea of leaving fresh meat out, unless he finds professional to guide him, he’s asked for permission to lie out on the grass pretending to be carrion.

I let him take the camera (see above).

Today we saw one swoop past during P.E., so we took a couple minutes trying to lure vultures (see below).

Unfortunately, it did not seem to work.

Mushrooms, in detail

beautifv — Image from World of Technology: Beautiful Shrooms.

Sometimes beauty is in the details. The World of Technology blog has a wonderful collection of close-up images of mushrooms. One of my students is working on an Independent Research Project on the fungi on our nature trail. Hopefully this might help spark the imagination.

We have fish!

While we were working on the needs of living things a couple weeks ago, we acquired two fish; goldfish, fifteen cents apiece.

It was supposed to only be a mental exercise. If you put a water plant, Egeria densa in this case, in an enclosed jar and left it in the sunlight, the plant should use the carbon dioxide in the water to produce oxygen during photosynthesis. A similar jar kept in the dark would produce carbon dioxide and use oxygen as the plant respired.

Bromothymol_blue_colors — Bromothymol Blue pH indicator dye in an acidic, neutral, and alkaline solution (left to right). Image and caption from Wikipedia.

That was the practical part. Students measure the pH of the water before and after a day in the light and dark. The pH of the jar in the dark should go down as the added carbon dioxide makes the water slightly more acidic. Bromthymol blue solution in the water changes color very nicely within the pH range of this experiment, but, in a pinch, you can also use the pH color strips that are sold for testing aquarium water.

My students did the experiment, made their observations and came to conclusions. Then the lab activity asked them to think about what would happen if you put a fish into each of the jars, to see if students are able to extrapolate based on a well rounded knowledge of respiration and photosynthesis.

My students did the mental experiment, but the next day our two fish turned up, uninvited at least by me.

I’d anticipated something like this so I’d picked up a small fish tank at a yard sale over the summer. I’m not opposed to keeping animals in the classroom, as long as I don’t have to take care of them. Fortunately, since we’re studying life, keeping organisms and attending their needs is something the kids are learning and there is no better way to learn that via practice.

Our fish are surviving. The students have added some gravel and structures to provide habitat. The waterplants, still in there to provide oxygen, seem to be thriving despite some browsing by the goldfish.

One of the few rules is that anything added to the tank should have some purpose to help support the needs of the fish. I’m also encouraging the students to think of ways of maintaining conditions in the tank which would minimize their work. Hopefully some filter feeders, maybe small clams, and similar organisms will turn up and we can talk about ecology. I may have to nudge them in that direction though.

I’m not sure what the fish’s names are as there seems to be some controversy among the students. With a little luck they’ll survive until we start comparing religions. Two years ago we had a frog who passed away at just the right time for us to have to figure out what religion he/she was so we could perform last rites.

And no, I did not kill the frog.

Science articles in newspapers

In this paragraph I will state the main claim that the research makes, making appropriate use of “scare quotes” to ensure that it’s clear that I have no opinion about this research whatsoever. – Robbins (2010), This is a news website article about a scientific paper

If you’ve ever thought that science articles in major newspapers all seem to follow a similar pattern you should read this article by Martin Robbins, the Guardian’s “Lay Scientist”. It’s hilarious.

Sentience = life?

His thought turned to the Ring, but there was no comfort there, only dread and danger. No sooner had he come in sight of Mount Doom, burning far away, than he was aware of a change in his burden. As it drew near the great furnaces where, in the deeps of time, it had been forged, the Ring’s power grew, and it became more fell, untameable save by some mighty will. As Sam stood there, even though the ring was on on him but hanging by its chain about his neck, he felt himself enlarged, as if he were robed in a huge distorted shadow of himself, … – The Return of the King (Tolkien, 1955).

One of the ways students collect seed ideas for writing is by recording significant quotes from things they read in their Writer’s Notebooks; things that resonate with them; things they might want to respond to. I use this blog in a similar way. My notebooks tend to be filled with equations, sketches and diagrams, while anything I can type ends up here….

I’ve been rereading Tolkien’s Lord of the Rings for the xth time (where x is a number too large to recall). As the Ring crosses the mountains into Mordor its power grows and it becomes hard to control. If the ring represents technology and its bearer, at this point Sam, represents the common person, then we see the choices facing the individual in the modern society; either to take the ring and bear the consequences of using complex, powerful technology that you do not understand, or to forgo it and accept the loss of power that entails. Sam faces what we face every day, though usually we’re unconscious of the decision.

This is also, pretty much, the central theme of Jurassic Park (I can see that this post is turning into an intertextual essay, but we’ll see). Crichton expresses the point more explicitly when he has the mathematican, Malcome, diatribe about the lack of humbleness of the creators of Jurassic Park; they build on existing technology without spending the time and effort learning how to use it. Crichton’s character believes that in putting the time and effort in mastering something, we learn to respect it, and give more though to the morals and ethics of how and if to use it. Easy to use, genetic technology is the equivalent of the Ring. It is powerful, too easy to use, and can lead to disastrous consequences.

We’ve been covering the characteristics, patterns and needs of life this last week, and, in discussing what qualifies as alive and what does not, the question of robots and computer viruses came up. Well if software does become sentient, will we have to recognize it as being alive? There’s no end to the number of science fiction books and movies that address all number of aspects of this issue. The self-aware SkyNet in the Terminator is one paranoid end-member example, but I’ve always liked James Luceno’s catholic computers in Big Empty.

However, advances in intelligent computing have not achieved sentience quite yet, and it might be a while. Yet, it would be interesting to consider a world where everyone has a computer on the brink of sentience. Oh what power would we each have then. And if these intelligent computers’ (potential) characters are colored by their interaction with human individuals, the good, the bad and the ugly, what would happen when a billion pieces of software cross the sentience threshold all at once (with the latest and greatest software update ever)?

Reading poetry in the morning

Mrs. Z. donated two small books of poetry, The Best Poems Ever and Poetry Speaks (much thanks). The second comes with an audio cd, where many of the poems are read by the authors. Since some of the authors are adolescents themselves, their reading can be a little halting, but there is a nice authenticity.

The The Best Poems Ever has a lot of the classics. I read William Blake’s The Tiger as an example. The students though my reading was pretty lifeless so I recited it for them with a lot of emphasis and hand motions. They were pretty impressed that I’d memorized the poem so quickly, at least until I told them I’d memorized it years before (probably in middle school actually). I probably should have kept this secret. Sometimes you need the mystique.

We’ve come up with a schedule so someone different will read every morning at the end of community meeting. They’re required to choose their poem ahead of time and have practiced reading it before they present. We also take a little time for comments, the objective is to try to identify the issues and the subtexts. This is how I discovered, with much reasoned explanation, that Edna St. Vincent Millay metaphorically described the asteroid impact theory for the extinction of the dinosaurs over 30 years before scientists came up with the idea.