Blog

On this page you will find thoughts, opinions, teaching tips, and more!

The articles below represent the views and thoughts held at the exact moment that the Publish button was pressed! They may not represent our current views because our ideas might change.

Wind Turbines Spectacularly Fail

Why are investments in wind and solar electricity generation decreasing so much around the world? It's probably because people are becoming more and more sceptical of the notion that renewables can easily replace coal- and gas-fired power stations. Renewables like wind and solar are more properly called intermittents because they ...
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Practice, Experience, Learn!

I've heard people say "I wish I knew then what I know now". The statement points to the fact that we are constantly gaining new knowledge and skills. This doesn't just happen in school of course. Students often say (and think) that the set work is too hard. But I ...
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Generalizations about Men and Women Are Fine, but…

It doesn’t happen all that often, but whenever the issue of the differences between men and women comes up in class this is what I give as my opinion. There is nothing that you can say about the personalities of men that applies to all men and that doesn’t also ...
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Best Greek Pita Recipe – Tiropita – Yummy Cheese Pie with Homemade Filo Pastry.

In the animal kingdom, the vast majority of species are born or hatch (or whatever) with pretty much all of the programming that they need to survive. Lizards, turtles, frogs, insects, and fish, for example, never "meet" their parents but they just know how to find food, how to find ...
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/ Society

Live in Lockdown – Cool World 12/09

This may be the first public live musical performance in Melbourne since lockdowns began in March. It was just me practicing the guitar for half an hour in front of a bunch of randoms at Bald Hill Park in Clarinda, which is across the road from my house! I'm not ...
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Me versus I

This one simple grammatical rule is not being taught in schools but it needs to be because "me" is not a dirty word! Let me begin with a poem. When do we use the word I And when do we use the word me? When do we use the word ...
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230,000 people die in Australia every year. So why the fuss over coronavirus? Here’s why.

I've heard people question why so many restrictions have been put in place to combat coronavirus (Covid-19) even though it hasn't killed that many people. This is a major reason why. Just over 100 people have died in Australia because of coronavirus (Covid-19). Every single case represents a human being ...
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Married Half My Life Day

Romantic Maths. Numbers are important! Today marks the special day in my life where I have now been married to my beautiful wife for as long as I had been unmarried. From tomorrow, I will have had more experience in life as a married man as I had had as ...
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/ Statistics

The Most Important Law that Students Should Be Taught

Good morning, everyone. Before we begin the lesson, let me tell you about what I call the First Law of Economics. This is it: If you want someone to give you something, you have to give them something in return of a perceived equal value. This Law applies to individuals, ...
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Always do this before you try to answer a question on a worksheet or a test.

I would have thought it was obvious but it wasn’t obvious to (at least) three Year 11 Physics students in a class of about 20. I had just finished teaching them the Law of Refraction using LEM’s Shedding Light on Refraction program. The bonus feature on this program explains how ...
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A Much Easier Way

What a teaching round! I recently had to supervise a pre-service teacher (what we used to call a student teacher). This was the last of three rounds that he did with me this year. Unfortunately, I wasn’t able to let him teach the recommended number of lessons on his previous ...
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The First Thing I Tell A New Class.

Hi everyone. My name is Mr Liacos and I’m going to be your Science teacher this year. I’m hoping that you’ll enjoy Science. We’re going to do pracs, theory work, assignments, and other things, and by the end of the year you’ll know a lot more than you do now! ...
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Statistically speaking, people are highly likely to misinterpret statistics!

Statistics are not easy to understand. They speak broadly of a whole population but say nothing about individual cases. I was watching a show on TV recently that reported that a study has found that in 70% of households women do more of the domestic duties (cleaning, cooking, ironing etc.) ...
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/ Statistics

Still Useful Four Decades Later

For a long time, teachers taught knowledge that they had acquired to students who had not yet acquired it. With the internet, we are no longer necessarily taught by teachers who are in a classroom with us, but we can easily search for, read up on, and learn stuff from ...
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Though we are producers of educational content, we don’t mind producing a little music as well!!
“Live in Lockdown” started on Saturday 12/09/2020. I’m not much of a guitarist or singer but it was probably the first public live musical performance since lockdowns began in April. In August 2020, Victorians were subjected to the harshest lockdowns on the planet so, after a month or so, I thought I’d just practice my guitar in my front yard in front of whoever was across the road at the park. It was met with a good response and within a few days people were gathering around and some were even dancing!
I have uploaded one song from each day so far.
The Youtube Playlist is at https://www.youtube.com/playlist?list=PLozVbNPqatqrX81fEImt8r2FF7x0ZvP1U or you can just click below!

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