… and very wet

The humidity that was oppressive yesterday has really peaked today, and the clouds burst early this evening. We had 60 mm of rain in just over 2 hours, and it’s still coming down, with more on the way.

My day was filled with ethics class activity – teaching 4 classes, and in between writing a new lesson plan for the week beginning tomorrow (I update topics on Tuesdays). The next topic for the 10-12 age group os “Games”. I wrote a long scenario involving three kids playing a board game, punctuated by questions at appropriate events in the game. Here’s the beginning:

Tegan, Josh, and Adele are playing a board game together. They roll dice and play cards and move pieces on the board, chatting and laughing while they play. Whenever the three of them get together, they like to spend some time playing a game like this. They’re playing a game where the goal is to win. Only one of them can win – the other two have to lose the game.

  • If you’re playing a game like this, is it okay to be competitive – to try your very hardest to beat your opponents and make them lose? Why or why not?
  • Generally, it’s considered to be good to be nice and generous to people. What makes it okay in a game to deliberately try and make your opponents lose?
  • What about the opposite: If you’re playing a competitive game, is it okay to not try to win? Why or why not?

Tonight I made pizza for dinner – well, my wife made the dough and I did the toppings and cooked it. We do this once every week or two, but I mention it tonight because it turned out extra delicious today, with the crust nice and thin and crispy. Or maybe I was just really hungry. πŸ˜„

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Lazy Australia Day

It was hot and my wife had the day off work for the public holiday, but I still had a couple of ethics classes to teach. I did the first advanced lesson on the topic “The Meaning of Life”. I thought this would be good, because last week the two kids in this class bounced ideas off each other and it was a lot of fun, but at the last second the parent of one of them sent me a message saying that the kid had a medical appointment and couldn’t attend. So I had to run the topic with just the one kid, and it was difficult to get him to expand on his answers, so we got through the material quickly and I had to stretch it which is always tricky and less enjoyable. I have this topic again tomorrow and I hope there’ll be more than one kid in the class!

We stayed in mostly and used the air conditioning to keep cool. We took Scully for a mid-length walk in the evening when it had cooled down a bit. It also clouded over and threatened to storm, but so far we haven’t had any rain, but there are severe small storms pushing across Sydney now.

My leech bite seems to have healed nicely.

New content today:

How to rig an election

Yesterday was online board games night with my friends, so I didn’t have time to write a blog entry. I picked up the grocery shopping in the morning, then picked up Scully from my wife’s work at lunch and took her to the Italian bakery. Oh that’s right, it was raining most of the morning.

I had four ethics classes to teach, including one of the older kids, on the topic of “how to Rig an Election”. I promised last post that I’d share some of my teaching examples, so here’s a crash course in how to gerrymander!

Let’s imagine this map is a state with 5 orange voters and 4 purple voters, for a total of 9. Let’s say we want this state to elect 3 representatives to Parliament. The way to get 3 representatives is to split the state into 3 smaller regions, and then each region elects one representative. If we split the state into 3 regions of 3 houses each by horizontal lines, we get more orange votes in two of them, so orange gets 2 representatives and purple gets 1. Is that fair?

gerrymandering example

If we split them up vertically, we get the same result. Two regions with 2 orange votes, so 2 orange representatives and 1 purple. But now let’s imagine you are a purple party politician, and you are given the job of drawing up the voting districts. Can you draw them differently, to give the purple party more than 1 representative?

Here’s one possible solution.

In this map we have 13 orange voters and 12 purple voters, for a total of 25. We want to split it up into 5 districts, with 5 voters each. Because orange has slightly more voters, a fair outcome might have 3 orange districts and 2 purple. Can we divide the districts so that purple wins 3 (or more!) districts?

gerrymandering example

Here’s one possible solution.

So by being careful about the way we draw the districts, we can change the outcome of the election, even though the voters don’t change their votes. This practice is called gerrymandering. Here’s a slightly different map of 25 voters. If we want to gerrymander this map to have 4 purple districts, we need to do the same thing, have a district with 5 orange voters in it. Can we manage to do that?

gerrymandering example

Here’s one possible solution.

The basic idea of gerrymandering is to create districts that contain as close as possible to 100% of the voters you want to lose, while other districts contain just over 50% of the voters you want to win. You spread out the voters you want to win into lots of districts, so they can win lots of districts, while concentrating the voters you want to lose into a small number of districts, so they only win a few of them. An obvious feature of gerrymandered districts is often the strange shapes.

In this map we have 20 orange voters and 16 purple voters, for a total of 36. We want to split it up into 6 districts. A fair outcome might have 4 orange districts and 2 purple, or 3 of each. Can we gerrymander this map so that purple wins 5 districts and orange only 1?

gerrymandering example

Notice I didn’t say the districts all have to be the same size! Here’s one possible solution. We can do this if we change the numbers a bit, and make some districts bigger than others. This is another trick that someone can use to control the outcome of an election.

Now let’s have a look at a few real electoral districts. (I show the kids a nice, almost rectangular district, which is not gerrymandered. Then I show them this:) This one is the 4th District of Illinois. Does this look reasonable?

gerrymandering example

Now let’s have a look at the voting district overlaid on a map of Chicago showing areas classified by the racial background of the majority of voters.

gerrymandering example

You can see that this district has deliberately been chosen to include almost only yellow areas, which corresponds to Hispanic people. See how carefully it’s been drawn to exclude the green areas! This district has been gerrymandered so that the Hispanic people of Chicago will only be able to elect one representative, rather than getting two or three if they had been spread out between multiple districts.

I go on to ask the kids their thoughts about all of this, and their opinions on who should draw up the maps of electoral districts, and why. The class also includes a discussion of different types of voter suppression. I’ve done this class with two different groups of kids now, and it’s been a real hit each time. I could see their eyes light up as they figured out how to gerrymander, and they were all very vocal about the unfairness of it!


Today I spent much of the morning housecleaning. We had a new mattress delivered today, so I had to strip the bed and get the old mattress ready to be carted away. We bought it just before Christmas, but they did quote us 2-4 weeks for delivery, so we expected it around now. We paid a tiny bit extra to ave them remove the old mattress for recycling too – much easier than us disposing of it ourselves.

After they delivered the mattress, and I waved the delivery guys off with a cheery “thank you” and wishing them a good afternoon, I was struck by a thought: If this was the USA, would I have been expected to have given them a tip? I’m again very thankful that I don’t live in a tipping culture.

New content yesterday:

New content today:

First lesson on free will

This morning I did my first ethics class for the older students on this week’s topic of Free Will and Determinism. I had the one student from last week, plus another kid who graduated up from the younger class. They’re both very articulate and we had a really good discussion of the topic. I think they appreciated the difficulties of the questions and the nuances between simply declaring “of course we have free will” versus the idea that our decisions are determined by our circumstances.

I spent time today working on the next topic, which is How to Rig an Election. I’m going through ideas like gerrymandering, voter suppression, and other stuff.

On a lunch walk with Scully we went by the harbour, and I saw a couple of little black cormorants fishing for food. I could see the small school of tiny fish that they were herding into a ball and picking off as they dived repeatedly. It was very cool. I took a short video with my phone:

The sound you can hear in the video is cicadas, in the nearby trees. And there’s a silver gull swimming on the surface near the cormorants, presumably looking for some sort of hanger-on free feed.

And I did a bit of baking today. A loaf of sourdough (a mild mix of rye and wholemeal), and I made pastry to use for quiche for dinner.

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Electric power to houses

A thing I forgot to mention yesterday: At the start of one of my online ethics classes, I was expecting two prior students, plus one new enrolment, who I’ll call Barb (not her real name). One of the prior students arrived, and then a minute or so later Barb connected to Zoom. I could only see the thumbnail video until she spoke, and it looked very dark. I waved and said “Hello Barb, welcome to the class”.

The video went from thumbnail to the main window and I could see an adult woman in a dark room. She looked sleepily at the camera and said, “What’s happening? I got a message on my phone saying there was a Zoom on now…”

I said, “You’re Barb’s mother?”

And she said, “There must be some mistake. It’s 1 am here. She’s asleep.”

I said, “Oh… there must have been some time zone mix-up!” I told her to check, in the morning, the time on the class and I’d contact her through Outschool to help work it out. I deduce from the time she said it was that she must have been in the US Eastern time zone. Outschool is supposed to show users all times in their own time zone, so I can only guess that she must have had her time zone set incorrectly in her user profile. So that was pretty strange. I just hope she got back to sleep okay!

Today I finished off the week of classes on the current topics, with four of the age 10-12 classes. In between I started work on writing a new class for this group, for the week after the next one. I’m trying to stay a full week ahead in my prep (as I think I mentioned before). I had a one hour break from 12 to 1, and took Scully for a walk to the fish & chip chop, intending to get some fish & chips for lunch to eat on the way back. But the shop was closed for summer holidays! Some businesses do this here, close for a few weeks in December/January so the staff can have some vacation time over the summer. So I had to walk Scully back home quickly and make myself a quick lunch at home to be done and ready for my class at 1pm.

I took her for another walk again around 5. While I was walking, I did a bird count using eBird, so I was looking around at things, and I noticed an interesting thing with some of the houses I was walking past, and their connections to the overhead electricity wires. The area around here has a lot of older houses, and they generally have the wires supplying electricity strung from the street poles directly to a terminal on the top of the house. Like this:

Wires to house

There are also several properties where the old house has been demolished and a more modern house has been built. And in almost all of these, the wires are not strung to the house itself, but rather to a pole erected just inside the property boundary. Like this:

Wires to pole

Presumably the wires go down the pole and then into the house underground. I’m wondering why this is such a popular choice for new houses. Do the owners make this choice to route the wires this way via a pole on their property, or is it some sort of new requirement by the council? I have no idea. And why string the wires to a pole??

In another interesting piece of trivia, I got talking with some of my friends in our Discord about how many different animals we’ve eaten. We did a survey by emojis, and I thought I’d copy the results here. The number indicates how many of us have eaten meat from the animal in question. This number includes me, except where indicated.

πŸ‚ – 7
πŸ– – 7
πŸ‘ – 7
πŸ“ – 7
πŸ¦ƒ – 7
🐟 – 7 (generic “fish”)
🦘 – 6
πŸ¦€ – 6
🦞 – 6
πŸ¦‘ – 6
πŸ‘  – 6 (’eel)
🐐 – 5
πŸ¦† – 5
πŸ’ͺ – 5 (“mussel”)
πŸ¦ͺ – 5
🦌 – 4
πŸ— – 4
🐊 – 4
🦈 – 4
πŸ™ – 4
🦐 – 4
⭐️ – 4 (sea urchin)
πŸ‡ – 3
πŸͺ – 3
🦒 – 3 (goose)
πŸ₯ – 3 (quail)
🐎 – 2
🦬 – 2
🐌 – 2 not including me
πŸ¦™ – 1
πŸ• – 1 not including me
🦀 – 1 (pigeon)
🦩 – 1 (emu)
🐒 – 1 not including me
🐸 – 1 not including me
πŸ¦— – 1
🐜 – 1
πŸ› – 1 not including me (witchetty grub)

New content today:

Ethics for older kids

Today I had my first class of online ethics for older kids (ages 13-15). I just had one student, and it was a kid I’d taught earlier in the 10-12 class. He’d stopped taking lessons several months back, but I contacted his mother to let her know that I had a new class for more mature kids and thought he’d be a good fit, and she signed him up.

The first lesson is on “Crime and Punishment”. We talked a bit about crime and why people commit crimes, and then concentrated on the idea of punishment. Why do we punish criminals? Do we as a society need to punish crime? What punishments are fair/unfair? Should criminals be given a chance to rehabilitate, or to live a life after serving punishment without prejudice? And so on. He really enjoyed it I think, exercising his brain on more difficult questions and ideas than I’ve done in previous classes. So I think it went really well!

The other main thing about today was the weather took a turn for the colder and wetter. It was very wintery, with a top temperature of only 22Β°C, also accompanied by wind and showers. Didn’t stop me going for a 2.5k run though!

New content today:

Are some things just wrong?

My online ethics classes have restarted for the new year. Today I just have the original ages 10-12 classes. The topic for the week is “Are some things just wrong”? The idea is to talk about whether morals are absolute or relative, by introducing the concepts slowly and building up to that question near the end of the class.

I start with a story about different foods that people of different cultures like eating. Is it okay for some cultures to eat dog meat, or is it wrong for them to do that? Is it okay for some cultures to eat beef, if some other cultures think that’s wrong? Is it always wrong to eat dogs, and any culture that thinks it’s okay is incorrect? Is it always okay to eat cows, and any culture that thinks it’s wrong is incorrect? Or does it all depend on your culture: it’s okay for some people to eat dogs/cows, but not other people?

Is it wrong to criticise someone else’s culture? Always? Or is it okay sometimes?

We move on to discussing things like stealing or murdering. Is it possible for everyone to agree that these are wrong? If someone thinks murdering is morally okay, are they incorrect, or is that a valid point of view?

So… could it be that some things are morally objective, while some other things are morally subjective? How do we know which is which? These are pretty deep questions – hopefully the kids will appreciate the trickiness of them!

Prior to the evening’s lessons, I mostly worked on Darths & Droids writing, trying to build up a bit more of a buffer before I get stuck into the teaching too much. It was warm today, but still not really summery hot. I checked the records, and discovered that the temperature hasn’t even reached 30Β°C here in Sydney since last February, which is extremely unusual. By January we should be having a few days in the high 30s or even 40s. Although I’m not missing the extreme heat – the lower temperatures are more pleasant!

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More ethics planning

Today is my last day off before resuming teaching online ethics classes on Outschool tomorrow. I think I mentioned that I’m starting a new class for older kids, ages 13-15, adding that to my existing class for ages 10-12. This means each week I need two new lesson plans instead of just one. I have four weeks of brief outlines ready to go, and by yesterday I’d written the first lesson plan for each age group.

Today I got ahead of the game by writing the second week’s lesson for each of the classes, so now I have one of each up my sleeve. I’m going to try to stay a week ahead, to give me some slack in case of emergencies. This year’s second topic for the 10-12 group is “Buying and Selling 3” – the third in a series on this topic because I had so many ideas and questions that it filled two previous lessons with enough left over for a third one. And the second topic for the 13-15 year olds is “Free Will and Determinism”. That one should be really interesting to discuss with the kids.

Apart from that and going on a big walk with Scully and my wife, I didn’t do much other than some house cleaning. I also took down the Christmas fairy lights that had been strung up in the living room. Here’s Scully on the walk today, in the Greenwich Point bushwalk section:

Scully on a bushwalk

One piece of news that I came across today was about something that has strongly influenced my projects over the past several years. The comic Darths & Droids wasn’t the first movie screencap webcomic – it owes its existence to the example set by the first one: DM of the Rings. This is a comic created by Shamus Young as a parody of the Lord of the Rings movies, as if they were a Dungeons & Dragons game. It directly inspired me and my friends to create Darths & Droids, which was the second of what has since become an established subgenre of webcomics with dozens of examples.

DM of the Rings was completed at 150 strips. I have long since had a downloaded collection of the comics on my computer, for posterity and reference. One small thing that bothered me about the comics was the fact that Shamus did his screencapping with software that left the frames vertically stretched in the wrong aspect ratio – so all the characters appeared thinner than they should. Also, being a product of the 2006 Internet, the comics are quite low resolution images.

Unfortunately, Shamus Young passed away in June last year. but today I learnt that his children are working on a remastered version of DM of the Rings. They are taking his original comics and recreating them at high resolution, and with screencaps in the correct aspect ratio. You can read the story about the remastering, and enjoy the first high-res remastered strip here: https://www.shamusyoung.com/twentysidedtale/?p=55070

Also check out that awesome page banner!

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Last classes for the year

Today I had my last four online ethics classes for the year. I’m taking three weeks break over Christmas, and will restart classes on 2 January. Some of the kids actually seemed a bit upset at missing the next three weeks, which was kind of sweet.

I also got news on next year’s schedule for the Data Engineering and Image Processing courses that I’ve been tutoring for the university. Both are changing next year: Data Engineering will be Monday like this year, but moving from a 6-9pm class to 3-6pm. And Image Processing in the second semester will be staying at 6-9pm, but moving from Thursdays to Tuesdays. Both of these changes will mean shifting some of my ethics classes. I currently have one at 4pm Monday which will need to change in first semester. But the bigger issue is the Tuesday evening, when I currently have three classes, that will need to move from August. Hopefully it won’t be too hard for the kids to move to a different day, and I have plenty of time to organise it.

There was a nasty storm today just before lunch time – actually during one of my classes. Fortunately I’d seen it approaching on the weather radar and had already closed the windows, because it was nasty when it hit. Absolutely torrential rain, and really strong winds – for about ten minutes, and then it basically stopped. The storm was the lead article on the evening news, as it had caused significant damage across Sydney, ripping roofs off some buildings and knocking some trees down. Within an hour later it was sunny again.

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The last face-to-face ethics class

Wednesday morning is when I have had my face-to-face ethics class, every school week for the past 6 years, apart from when it was interrupted by COVID lockdowns. Today was the last ethics class of this school year, and I have decided not to return to the classroom next year.

I still enjoy it, but I wanted to regain some time in my week, and I wanted to go out with a good class. I felt like if I did another year it would be my last and I don’t want to come back next year and end up with a class of kids that are not as engaged and have worse behaviour than the group I had this year. Essentially, I’m going out on a high. I informed the ethics coordinator for the school about my decision a few weeks ago. They’ll miss me, obviously, but hopefully they’ll train new teachers and will have a full set of classes running again next year.

I taught the special “end of year” class for the kids this morning, in which we reflect on what we’ve done during the year, and the kids answer questions about what topics they enjoyed the most and why, and if they felt they have grown and changed during the year. They’ll all be going on to Year 7 and high school next year – the biggest change in their school careers. And… today is almost certainly the last day I will ever see any of them again. At the end of the class I wished them the best for their high school years and beyond. Every year I’ve felt a bit sad internally at this point, but the kids seem to take it in their stride. There are some really clever and mature kids in this class and I think they’ll do well. If I’ve made some positive difference to their lives, then that’s all I can ask for.

After the class there was a meeting of ethics volunteers at a cafe near the school. I saw the coordinator there, and she thanked me for my years of volunteering. She had a large envelope for me, which contained a certificate of appreciation for having taught 5+ years, and a pin with the same award written on it. I met a new guy who has just completed his volunteer training and will be starting next year, although he won’t be taking my Year 6 position – he wants to teach Year 1 (since his son is in that year).

After a bit we went back over to the school, which was putting on a special morning tea in the staff room for all the volunteer workers – the ethics and scripture teachers, as well as people who staff the school canteen and uniform shop and probably a couple of other volunteer positions. The principal gave a speech of thanks to us all, and there were finger foods and drinks. I filled up on some things (I’ve never gotten out of the habit from when I was a poor university student of taking advantage of free feeds), and that did me for lunch.

I got into a conversation with an older lady, who asked me what volunteer work I did. When I told her I taught ethics, she asked me about it, and was very interested as I explained how the classes work. The she said she wondered if she could do it, it sounded more interesting than making sandwiches in the canteen. So I introduced her to the ethics coordinator and said we might have a new volunteer! They exchanged contact details and so hopefully I managed to recruit my own replacement for next year. She seemed genuinely interested, so I hope she does the training and it works out.

Back home around lunch time, I did a walk with my wife and Scully, before going out for a 2.5k run myself, and finally preparing dinner before three online ethics classes in a row. It feels like a full and busy day!

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