David Easdown
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davideasdown.bsky.social
David Easdown
@davideasdown.bsky.social
Instructor/designer online maths courses, works at USyd
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First post on Bluesky, intended a couple of days ago but got distracted. Unlikely to ever stumble on a Phew pattern like this again, so recorded for posterity, better late than never! (word was DOGMA)
As an Australian, I love visiting America, but nervous about having to give passwords for devices/email in order to be granted entry (and would be breaking rules with my employer). I would be interested in recent (positive or negative) experiences by Australians going through US Customs.
November 20, 2025 at 2:10 AM
The following article just appeared (open access) and may be of interest to people teaching maths. It builds on the notion of a mathematical yawp, introduced in one of Francis Su's articles.

Full article: Incorporating principles in teaching linear algebra www.tandfonline.com/doi/full/10....
Incorporating principles in teaching linear algebra
In this article we explore and illustrate some general principles that teachers of linear algebra might consider, in building frameworks or scaffolds for imparting ideas and techniques that engage ...
www.tandfonline.com
November 19, 2025 at 1:48 AM
Where were you when Whitlam was dismissed? Fifty years ago, to the hour, I was having a piano lesson in Manuka (old CSM) and my teacher's husband interrupted to say that Whitlam has been sacked. I quickly went across to parliament house, a short bicycle ride away, and got caught up in this crowd 1/2
November 11, 2025 at 4:43 AM
Aum
November 10, 2025 at 12:19 PM
Spot the possum
November 3, 2025 at 9:46 PM
Bird of the year at Bennelong Park
November 1, 2025 at 12:29 AM
Spirit of Bennelong
November 1, 2025 at 12:18 AM
July 6, 2025 at 1:19 PM
Catacombs (just kidding!), underneath bridge over Lake Benalla
July 6, 2025 at 9:23 AM
Just drove from Sydney to Melbourne and as usual obsessed with the odometer (an integral calculus machine!), excited that it was about to show 123456, but got distracted in thoughts and went well past that special number before I checked again! Blinked and missed an important life event!
June 30, 2025 at 1:29 PM
Wordle 1,436 3/6

🟨⬜⬜⬜⬜
⬜⬜⬜🟩🟩
🟩🟩🟩🟩🟩

Not so subtle dig!
May 25, 2025 at 12:32 AM
April 6, 2025 at 10:18 PM
April 5, 2025 at 10:54 PM
Appropriate word for how one feels about US now
April 4, 2025 at 9:36 PM
April 3, 2025 at 9:17 PM
Phew!
April 2, 2025 at 9:06 PM
April 1, 2025 at 9:24 PM
March 31, 2025 at 9:47 PM
March 30, 2025 at 9:39 PM
March 29, 2025 at 10:05 PM
March 28, 2025 at 8:57 PM
March 27, 2025 at 9:30 PM
March 26, 2025 at 9:04 PM
March 25, 2025 at 9:43 PM
March 24, 2025 at 10:01 PM