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•Moving a vertex of the smaller triangle to the line with matching colours doubles the area. • Notice the three coloured lines intersect to produce a similar triangle. What is the scale factor of enlargement? What is the centre of enlargement? #mathschat #geometry

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The Art of Statistics is the 99p Kindle Deal of the Day, today! amazon.co.uk/Art-Statistics… Why not get two?

A great spot by @tombutton.bsky.social! This book is fantastic! #mathschat

Giveaway! 🌈 David Litchfield has kindly sent us a signed copy of 'Rain Before Rainbows'. To give yourself a chance of winning: 1 Follow us 2 RT and ❤️ 3 Reply with a happy gif. Closes 9pm on Sun 22nd. Winner will be randomly selected & announced ASAP. You must be in the UK.

In conclusion what do each of these graphs make you think about the pandemic? Data visualisation is so important, particularly at a time of global crisis. People making graphs can choose what message they want to tell you. It's a responsibility they should not take so lightly.

Japanese artist Kenichi Kanazawa manipulating sand on a steel tabletop.

Distribution of found Roman coins

Great task 👌

NEW: a common response to reports of hospitals struggling this winter is "it’s no different to a bad flu season!" I’ve tracked down historical data on flu ICU admissions, including winter 2017-18, a record high. Here’s how England’s Covid winter compares to a bad flu season 📹

We can also address claims like "hospitals are always full in winter", or "it’s just people who were already in hospital for other reasons catching Covid on the ward" Here are numbers of people in ICU beds (for any reason) in London hospitals, each winter Spot the odd one out

The Cistercian monks invented a numbering system in the 13th century which meant that any number from 1 to 9999 could be written using a single symbol

For those of you interested in what edu-geeks of times past argued about, here's a selection of journal articles* from the 70s: 1/10

Fabulous thread from Peps. I figure the important thing is how much teachers teaching right now are committed, invested, passionate, dedicated & engaged...every conversation I have with a currently-practising teacher fills me with hope & confidence for future generations.

Holding shift while drawing polygons on ppt draws a regular polygon EXCEPT for a hexagon and decagon. ***Why is no-one talking about this???*** #mtbos #iteachmath #mathschat

Example from yestersdays session 'Supporting lower attainers - constructions unit'. Do children really 'see' the radius of the circle when they are so focussed on controlling the pair of compasses? Using Geostrips helps affirm the link. Mathematics Mastery

Michael Allan

Hi Joe great to hear you enjoyed the game as you should. No one should be afraid to go and support their club or country because football is for everyone no matter what. Thanks for your support, enjoy the rest of the Euros. 💪🏻🏳️‍🌈