<figure class="wp-block-image size-large"><a href="https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800.jpg"><img loading="lazy" decoding="async" width="800" height="209" src="https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800.jpg" alt="Mathematical Objects" class="wp-image-20198" srcset="https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800.jpg 800w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-300x78.jpg 300w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-768x201.jpg 768w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-150x39.jpg 150w, https://aperiodical.com/wp-content/uploads/2019/03/MathematicalObjectsBanner-800-600x157.jpg 600w" sizes="auto, (max-width: 800px) 100vw, 800px" /></a></figure>



<p>A conversation about mathematics inspired by a Spirograph set. Presented by Katie Steckles and Peter Rowlett.</p>



<p><a href="https://www.geogebra.org/classic/tqwdktps">Katie&#8217;s Spirograph GeoGebra file</a>.</p>



<figure class="wp-block-image size-large"><a href="https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited.jpg"><img loading="lazy" decoding="async" width="1024" height="768" src="https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited-1024x768.jpg" alt="Travel Spirograph kit, with blue and red pens" class="wp-image-24278" srcset="https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited-1024x768.jpg 1024w, https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited-300x225.jpg 300w, https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited-768x576.jpg 768w, https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited-150x113.jpg 150w, https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited-800x600.jpg 800w, https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited-600x450.jpg 600w, https://aperiodical.com/wp-content/uploads/2021/06/spirograph-edited.jpg 1032w" sizes="auto, (max-width: 1024px) 100vw, 1024px" /></a></figure>

Mathematical Objects: Plate of biscuits with Alison Kiddle

Katie Steckles and Peter Rowlett chat about some aspect of mathematics using a mathematical object as inspiration.