Skip to main content

How Unschooling Kids Learn: Environment as Classroom: Part 1 of the soldering series

Lots of people ask how unschoolers learn without classrooms or teachers.  The perhaps paradoxical answer is that they have classrooms and teachers, just not in the traditional sense.  The kids' (7 y.o. No. 1, 5 y.o. No. 2, and 3 y.o. No. 3), teachers are whoever they happen to be around when they're curious about something.  Their classrooms tend to be anywhere but our house, where we all typically decompress for a few hours around dinnertime before we head off to bed.  We do have haunts form time to time where we spend more time learning.  When the kids were younger, we had a favorite coffee shop with a grass lawn and an upstairs.  We'd hang out upstairs practicing numbers and division. 

Since we've come to San Francisco, our favorite learning haunt has changed.  Google came the closest to what we use for a classroom when they implemented rolling study halls:


More times that not, the gang and I find ourselves discussing 'school' subjects on San Francisco public transit.  Which isn't to say that One, Two, and Three don't do science at playgrounds, art at museums, and socialize all over town.  Transit just happens to be where we usually are when I can work with the kids.

Here's an example.  Two weeks ago, the gang and I visited a hackerspace here in San Francisco.  We'd already been playing with plug-in breadboarding for LED and logic circuits, so One was intrigued when she saw what looked like a breadboard, but not quite.  Asking our host about it, she found out that it was a breadboard for soldering.  She immediately said she wanted to learn to solder!

For those not in the know, soldering is used to permanently attach wires and components to circuit boards.  So, instead of a circuit with connections that looks like this pluggable breadboard:


You wind up with connections that look like the ones shown in more detail here.

Those are the same size wires permanently soldered to metal pads.  The whole affair is pulled off by heating the pad and wire till they're hot enough to melt the solder.  If done correctly, the soldering iron, (the heat source), never touches the solder, just the wire and the pad.

As we trundled along to the hackerspace in our rolling study hall, (better known as the M train), I found myself explaining the same thing to One that I just detailed above.   One and I both learn really well verbally, so I'd already started talking about how to solder, as I looked around looking for something I could use as an example wire.  Then I noticed it was right in front of me, staring out of the train wall.  The square peg in a round hole used to lock the wall panel in place suddenly looked like nothing more to me than a wire centered inside a solder pad.



Using my ballpoint pen as the pretend soldering iron, I showed One how she was going to solder, being careful to heat the pad and wire from one side while feeding the solder from the other.

With this model for an example, One nailed actual soldering at the hackerspace.  Those are her first solder joints pictured above!  Of course, there was more to it, like stripping insulation off wires, but I'll uncover that next time, (silly pun totally intended).

So there you go, our unschooling classrooms tend to move these days.  Even when they don't they're usually somewhere outside the house.  Let's face it, that's where the rest of the world is happening!

It's always cool to hear how other homeschooling families are doing things.  What's your favorite place for learning?


Comments

Popular posts from this blog

Cool Math Tricks: Deriving the Divergence, (Del or Nabla) into New (Cylindrical) Coordinate Systems

The following is a pretty lengthy procedure, but converting the divergence, (nabla, del) operator between coordinate systems comes up pretty often. While there are tables for converting between common coordinate systems, there seem to be fewer explanations of the procedure for deriving the conversion, so here goes!

What do we actually want?

To convert the Cartesian nabla



to the nabla for another coordinate system, say… cylindrical coordinates.



What we’ll need:

1. The Cartesian Nabla:



2. A set of equations relating the Cartesian coordinates to cylindrical coordinates:



3. A set of equations relating the Cartesian basis vectors to the basis vectors of the new coordinate system:



How to do it:

Use the chain rule for differentiation to convert the derivatives with respect to the Cartesian variables to derivatives with respect to the cylindrical variables.

The chain rule can be used to convert a differential operator in terms of one variable into a series of differential operators in terms of othe…

Lost Phone

We were incredibly lucky to have both been in university settings when our kids were born.  When No. 1 arrived, we were both still grad students.  Not long after No. 2 arrived, (about 10 days to be exact), mom-person defended her dissertation and gained the appellation prependage Dr. 

While there are lots of perks attendant to grad school, not the least of them phenomenal health insurance, that’s not the one that’s come to mind for me just now.  The one I’m most grateful for at the moment with respect to our kids was the opportunities for sheer independence.  Most days, we’d meet for lunch on the quad of whatever university we were hanging out at at the time, (physics research requires a bit of travel), to eat lunch.  During those lunches, the kids could crawl, toddle, or jog off into the distance.  There were no roads, and therefore no cars.  And, I realize now with a certain wistful bliss I had no knowledge of at the time, there were also very few people at hand that new what a baby…

Lab Book 2014_07_10 More NaI Characterization

Summary: Much more plunking around with the NaI detector and sources today.  A Pb shield was built to eliminate cosmic ray muons as well as potassium 40 radiation from the concreted building.  The spectra are much cleaner, but still don't have the count rates or distinctive peaks that are expected.
New to the experiment?  Scroll to the bottom to see background and get caught up.
Lab Book Threshold for the QVT is currently set at -1.49 volts.  Remember to divide this by 100 to get the actual threshold voltage. A new spectrum recording the lines of all three sources, Cs 137, Co 60, and Sr 90, was started at approximately 10:55. Took data for about an hour.
Started the Cs 137 only spectrum at about 11:55 AM

Here’s the no-source background from yesterday
In comparison, here’s the 3 source spectrum from this morning.

The three source spectrum shows peak structure not exhibited by the background alone. I forgot to take scope pictures of the Cs137 run. I do however, have the printout, and…