Monthly Archives: July 2016
I had a meeting with an international student in the MLC on Friday who has having a whole lot of language issues in her maths class.
She was from the USA.
Yes, the USA. Her problem wasn’t the everyday English; it was with the different terminologies for mathematical things here compared to her experience where she comes […]
TMC16 reflections from someone who wasn’t there
This post is about my response to TMC16.
For the uninitiated, TMC is short for Twitter Math Camp. This is a conference designed by teachers for teachers with teacher speakers, organised through the collective efforts of the Math Twitter Blog-o-Sphere (MTBoS) — a group of people who blog and tweet about their experiences teaching math(s). That […]
David Butler and the Prisoner of Alhazen
Once upon a time, I did a PhD in projective geometry. It was all about objects called quadrals (a word I made up) – ovals, ovoids, conics, quadrics and their cones – and the lines associated with them – tangents, secants, external lines, generator lines. During the first two years, I did talks about my […]
A few months ago, I learned a new word: “mansplaining”. You may have heard it before, but I never had until this year.
The general idea is that very often, a man will explain something to a woman in a way that seems to be based on the assumption that the woman is incapable of understanding […]
The line at infinity: conics
The story so far
I promised Tina on Twitter that I would write about how the line at infinity relates to conics, and I’ve been doing it in the last two blog posts.
First, I talked about what the line at infinity is. We noticed that a set of parallel lines all share a slope, so we […]
The line at infinity: coordinates
The story so far
I made a promise to someone on Twitter to talk about how conics relate to the line at infinity, but when I came to do that, I realised it’s a can of worms that will take a few blog posts to untangle. Last time, I talked about how I construct and think […]
The line at infinity
Why I’m doing this
I foolishly said this on Twitter about a month ago:
@DavidKButlerUoA @MathguyArt on the line at infinity? Tell me about those!
— Tina Cardone (@crstn85) June 14, 2016
At the time I declared this was a bit of a can of worms and I promised to write something and post it later. Well, here it […]
A Day of Maths 7: Thanks for coming
And there you have it. All my thoughts about the Day of Maths I had in a Year 7 classroom.
The Best! Day! Ever!
Quarter the Cross
The Zero Zeros
Mathematical Art Appreciation
Thank you to everyone who has followed my journey all the way here. One thing I find about teaching is that it often leaves me […]
A Day of Maths 6: Hotel Infinity
This post is the sixth in a series about a Maths Day I did in a Year 7 class last week. I’ve talked about my feelings about the day overall, and all but one of the activities we did: Quarter the Cross, the Zero Zeros, Spotless Dice, and looking at my maths art. In the […]
A Day of Maths 5: Looking at Maths Art
This is the fifth in a series of posts coming from my Maths Day in a Year 7 classroom. So far I’ve talked about the following:
how awesome the day was
how I implemented Quarter the Cross
the unexpected things that happened with Zero Zeros
how I implemented Spotless Dice
You may be thinking by this stage, “David, how much […]
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