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The Big Lockdown Math-Off, Match 3

Welcome to the third match in this year’s Big Math-Off. Take a look at the two interesting bits of maths below, and vote for your favourite.

You can still submit pitches, and anyone can enter: instructions are in the announcement post.

Here are today’s two pitches.

Geogebra to Cake in Five Steps

Flower design using Reflect Object in Circle tool in Geogebra
Tessellated squares design using Reflect Object in Circle tool in Geogebra

In the Aperiodical’s Big Internet Math-Off 2019, Becky Warren posted an entry about Geogebra’s ‘reflect object in circle’ tool (it’s the second article in the post). I enjoyed playing with the tool and, after making a few colourful designs, it occurred to me that one of them would make a great cake for the MathsJam bake-off. It would only work if the curves were accurate; sadly this would be beyond my drawing abilities, and definitely beyond my piping abilities. But with some help from 3D printing I thought I might be able to manage it.

Here are the steps I used to transfer the design to a cake.

Many-to-many Shape Sorter

Did you like playing with shape sorters as a toddler, but find them too simple as an adult? Well, I’ve got good news for you.

MathsJam Gathering: A Review

General conference goings-on; Photo by Steve Kirkby (steve.kirk.by)It was with trepidation that I booked tickets for the MathsJam Gathering in 2015. I loved the sound of the event, but what if everyone else was cleverer than me? What if people thought I was a fraud because I wasn’t an academic? What if nobody talked to me? I needn’t have worried. MathsJam is one of the friendliest, most welcoming events I’ve ever experienced. Lots of people talked to me, I learned new things, I laughed a lot. I’ve since been to two more gatherings, and have already booked for the next one in November.

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