Ben Sparks
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sparksmaths.bsky.social
Ben Sparks
@sparksmaths.bsky.social
Mathematician, Musician, Speaker, Teacher. Freelance - MEI - Uni of Bath

Working with @Numberphile @MathsInspiratn @TMiPUK and on YouTube @SparksMaths

Get in touch and/or book me for a maths talk or workshop:
www.bensparks.co.uk
July 12, 2025 at 7:17 AM
I saw this one yesterday and thought of you and @peterrowlett.net
June 19, 2025 at 6:14 AM
Q3 I'm going to claim this as a win. My answer is equivalent to 56kg, and it thinks I should have full marks.
June 10, 2025 at 7:24 AM
Q2 it called my answer both incorrect and correct. You decide if I was successful.
June 10, 2025 at 7:24 AM
Here's an attempt:
Test (Gemini generated it)
Essentially:
1. 3/5 + 1/4
2. 2/3 + 5/6
3. 1/2 + 3/8
More details in image.
June 10, 2025 at 7:24 AM
I feel discerning teachers can see right through simplistic headlines like this.
www.bbc.com/news/article...

Here's an idea for using LLMs to generate classroom discussion:
A 3 question fact check quiz (AI will try to generate one if you ask). Student instructions (don't tell the AI) in next post.
June 10, 2025 at 7:24 AM
Then change pen colour from red to something more sensible. I think it will save with a presentation.
May 12, 2025 at 1:28 PM
Set Up Slide Show in Slide Show Tab
May 12, 2025 at 1:28 PM
It feels like bullshit reasoning to retro-justify their goal, and it reminds me of this excerpt from Douglas Adams' Dirk Gently's Holistic Detective Agency:
April 3, 2025 at 2:51 PM
Immediately followed by:
April 3, 2025 at 2:43 PM
Joking mostly aside, it does read like a bad maths joke.
April 3, 2025 at 2:41 PM
Possibly less important, but still - why is the formula in the image on BlueSky at one angle, when the formula image on the BBC article is now at a different angle? What thought process lies behind actually implementing this non-trivial change?
April 3, 2025 at 2:31 PM
It's almost a new tax year. Here's my visualisation of how income tax works (or did in 2023-24).
Explainer vid: youtu.be/zXJCyffu8Og
Interactive version: www.geogebra.org/m/p97htgc3
March 31, 2025 at 1:25 PM
Here's the moving version
March 31, 2025 at 1:23 PM
Headline: Maths has a gender attainment gap
Schools minister: we'll continue to promote STEM
DfE: cuts funding for Advanced Maths Support Programme, (AMSP) - specifically enrichment work
www.bbc.com/news/article...
March 10, 2025 at 2:47 PM
It's a good moon
March 2, 2025 at 7:37 PM
Great day of top quality maths communication at MathsFest 2025. @standupmaths.bsky.social hosting Katie Steckles, @mscroggs.co.uk, Jen Visser-Rogers, @jamesgrime.com @nicole-cozens.bsky.social and me. Thanks to everyone for coming to join in!
February 27, 2025 at 7:06 PM
My @mathsgear.bsky.social Utilities Mug spontaneously rebelled against being solvable.
February 17, 2025 at 8:58 PM
Drawing and painting.
February 2, 2025 at 8:55 PM
I am unreasonably proud of combining several obsessions in one animation. An impossible tribar (aka a Penrose Triangle) level 4 fractal (Sierpinski Triangle), in 3D GeoGebra, with dynamic lighting (using the dot product).
January 29, 2025 at 2:34 PM
It's always fun to speak about maths in a room directly after Charlie Gilderdale...
January 13, 2025 at 12:46 PM
New Fractal Build on @geogebra.org - The Dragon Curve:
youtu.be/PaS2xaMOMp8
November 20, 2024 at 11:19 AM
Made a new adjustable spinner in GeoGebra @geogebra.bsky.social - might be useful.
www.geogebra.org/m/zwwtmgbs
November 5, 2024 at 5:45 PM
Always satisfying to be able to wrestle Geogebra into submission - here's a Hilbert Curve being traced.
Draft interactive version here: www.geogebra.org/m/a4emmsym
November 4, 2024 at 1:07 PM
November 2, 2024 at 2:23 PM