
#MTBoS #ITeachMath #EdTech and #NBA among other things.
Adelaide, South Australia
Joined February 2009
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Lachlan McFarlane retweeted
The 2026 Winter Olympics figure skating ⛸️ free dance was scored by 9 judges
The French judge gave Beaudry & Cizeron 🇫🇷 a 137.45 but only gave Chock & Bates 🇺🇸 a 129.74
All other judges were relatively close in their two scores 🤔
Judge No. 4 was just in a bad mood overall
Lachlan McFarlane retweeted
NEW: IT'S NOT JUST THE UK!
🟢The UK is 14th OECD country to become coal-free.
🟢OECD coal power falls to less than HALF of its peak in 2007.
🟢All but 5 OECD countries have seen falls of at least 30% from peak coal power
(lovely dataviz from @C_BruceLockhart) 🧵
Lachlan McFarlane retweeted
Just fed the text of a book—Student Assessment, co-authored with Nancy Frey and Doug Fisher—into Google's Notebook LM (HT @emollick) and it produced a ten-minute podcast as well as a list of FAQs and a study guide. As Ethan says, "Seriously, just listen": bit.ly/47EtlYf
Lachlan McFarlane retweeted
An interesting chart on the age distribution of athletes at the Paris Olympics.
Youngest- Skateboarding, gymnastics
Oldest- Equestrian, Triathlon
It's kind of wild how young swimming skews compared to its close athletic cousins (track, triathlon, cycling)
Lachlan McFarlane retweeted
this will be one of my favorite moments ever not just because it secured gold. nor because of the difficulty. because he is the only person on earth who not passing to one of these two, wide open, is acceptable.
Lachlan McFarlane retweeted
A short summary of my basic principles of behaviour management. Feel free to share to anyone who might find it useful.
Lachlan McFarlane retweeted
President Venn Diagram xkcd.com/2962
Lachlan McFarlane retweeted
Electric vs Gas xkcd.com/2948
Lachlan McFarlane retweeted
What’s happening with artificial intelligence jobs? My speech to the ABS-RBA Human Capital Conference, based on joint research with @MattCowgill ministers.treasury.gov.au/mi… #auspol #ausecon #ai
Lachlan McFarlane retweeted
Again, much of the conflict about math pedagogy is a disagreement about:
a) whether math is a set of secret codes or something accessible on a concrete, sensory level.
b) whether students have valuable knowledge to build on or not.
This all gets easier if you get that.
Lachlan McFarlane retweeted
The Economist: "China has become a scientific superpower"
Rare for me - maybe even unprecedented - to praise the Economist but this might be the seminal article on the current status of China's scientific might.
Let's take a look 🧵
economist.com/science-and-te…
Lachlan McFarlane retweeted
What an awesome #NoticeWonder prompt!
Lachlan McFarlane retweeted
The ABC analyses the headshots and hairstyles of all AFL players in the 2024 season to definitively answer: is the mullet back? ab.co/3QWkBWu
Lachlan McFarlane retweeted
AI detection in school is a losing game.
AI detectors have high flaw positives & teacher intuition seems to work even worse: “Here we show in two experimental studies that novice and experienced teachers could not identify texts generated by ChatGPT among student-written texts.”
Lachlan McFarlane retweeted
#AFLCrowsPower Final xScores:
ADEL 76 from expected 59.7 (+2 rushed)
PORT 46 from expected 68.8 (+2 rushed)
Lachlan McFarlane retweeted
With the eclipse approaching in less than a week, over half of U.S. cities along the eclipse's path are fully booked for the night of April 7th according to data from @airdna
Lachlan McFarlane retweeted
Periodic Table Regions xkcd.com/2913
Lachlan McFarlane retweeted
This should be the lede everywhere:
“15yos from disadvantaged families lag their advantaged counterparts by five years of schooling. Indigenous students are around four years behind non-Indigenous students.”
How can we allow such an inequitable education system to persist?!
‘Glaring inequities in our education system’ is right. Until we tackle those nothing will change. Oh, & our slide began when Howard made ‘parental choice’ the centre of education - just saying. smh.com.au/education/austral…
Lachlan McFarlane retweeted
A quick Human Galton Board experience with Year 9/10’s today as one stop on their Amazing STEM Race.

ALT Two students add videotapes to the tallest piles on the experimental binomial distribution graph.

ALT A wide shot of the whole Human Galton Board. Tape on the floor makes a large grid in the shape of half a square with the right angle nearest the viewer. Yellow lines make the grid going left and blue lines going right. At the far end, the long edge of the triangle has the numbers 0 to 10. Beyond that is a table with labels 0 to 10 behind which stand piles of VHS tapes. At the near end is a table holding a box of cups and a box of dice, below which is a crate of VHS tapes. On the table are instructions saying 1,2,3 go left and 4,5,6 go right.




































