Sue Childs

Open University Associate Lecturer, Retired Head of Mathematics Faculty at Ashford Senior School . Would be bellringer and cyclist

[Mathigon @MathigonOrg]

These interactive animations show how you can find the surface area of cylinders and cones, by “unrolling” their net: https://t.co/MFnj31mp5k

[Catriona Agg @Cshearer41]

The four marked angles are equal. If the rectangle’s width is 3, what’s the area of the circle?

[Catriona Agg @Cshearer41]

Two regular hexagons overlap to create three equal areas. What’s the perimeter of the design?

[MathsEchoChamber @MathsEcho]

Euclid and Sherwood – Anne Watson | Oxford Maths https://t.co/pJNSdTHi5B

[Catriona Agg @Cshearer41]

The area of the regular hexagon is 30. What’s the area of the rectangle?

[Mathigon @MathigonOrg]

You can do arithmetic with different symmetries, just like you can with numbers. We even built a “Symmetry Calculator”: https://t.co/8pZ6u4jQyl

[Sue Childs @MathsTent]

One of my all time favourite books now interactive..brilliant

[Nicholas Rougeux @rougeux]

I recreated Byrne's 1847 edition of Euclid's Elements including interactive diagrams, cross references, and a new poster of all the original illustrations: https://t.co/pIz7DcbyVl Plus an in-depth blog post on how it was made: https://t.co/ZBl0Ncx8Ud

[The Mathematical Association @Mathematical_A]

This is the greatest answer. Syntax error rounded to 2 d.p.

[Sue Childs @MathsTent]

@whisto_maths @onechriswhite Could I have the template too please

[The Mathematical Association @Mathematical_A]

From @tes: England wrong to copy Shanghai maths. https://t.co/TfvL4JPc9X

[CambridgeMathematics @CambridgeMaths]

Lynne McClure: we need to consider key stories in maths that span across key stages, and to consider careful use of shared language across sectors to help tell those stories #RSACME2018

[CambridgeMathematics @CambridgeMaths]

Prof Frank Kelly on the rationale for a specific, dedicated maths education committee (ACME) at the Royal Society: 'maths isn't like other subjects; it's more like reading and writing' #RSACME2018

[Sue Childs @MathsTent]

@Just_Maths about 20 so maybe 10%

[CambridgeMathematics @CambridgeMaths]

'Iconic patterns such as the arrangement of dots on dice are some of the patterns encountered in childhood and can be significant building blocks for the development of ideas such as estimation and additive reasoning' https://t.co/bpJgzRnjHb

[Tim Brzezinski @TimBrzezinski]

Today's @geogebra post inspired by a tweet earlier today from @solvemymaths: Napoleon's #Theorem - Illustration w/o words. How can we formally prove this true? Engage here: https://t.co/VLEt90CIZz #MTBoS #ITeachMath #Math #Maths #MathChat #HSMath #CollegeMath #geometry #EdTech

[Bryn Humberstone @brynhumberstone]

I have written a @Desmos activity introducing the unit circle (with degrees and radians). Please try it as a student (https://t.co/pbFrtaGNDN) or as a teacher (https://t.co/SsAsXiXxCZ) and provide feedback!

[Sue Childs @MathsTent]

@MEIMaths @BBCr4today @wschool Angel food cake shouldn't have any butter in it?

[The Mathematical Association @Mathematical_A]

Bet you'd like one of these babies. We're giving 10 away free to followers in the UK. Retweet to enter our draw and we'll let you know if you are a lucky winner in due course. #MathsRules

[Rose Keating @rosemkeating]

My amazingly talented friend Alison, has written another book!!! There is every reason to buy this book!!! https://t.co/hs83uyo6Xn

[Catriona Agg @Cshearer41]

What fraction of each circle is shaded? The 12 dots are equally spaced, and the only point used inside the circle is the centre.