Maths Ed

Maths Teacher sharing ideas, curios, problems & resources to inspire the teaching and ignite the learning of mathematics.

[Maths Ed @MathsEdIdeas]

@Math_files https://t.co/RNKGLDS4aL

[Maths Ed @MathsEdIdeas]

#Today in 1675 Gottfried Leibniz first introduced his integral ∫ (long 's' for 'summa') and d ('differentia') notation, in the margin of his 'Methodi tangentium inversae exempla'.

View the manuscript — Leibniz-Handschriften zur Mathematik: LH 35, 5, 9 — https://t.co/bXptcGSZfs

[Maths Ed @MathsEdIdeas]

@HistoryCalendar https://t.co/Q2z8HQmn1u

[Maths Ed @MathsEdIdeas]

#Today in 1675 Gottfried Leibniz first introduced his integral ∫ (long 's' for 'summa') and d ('differentia') notation, in the margin of his 'Methodi tangentium inversae exempla'.

View the manuscript — Leibniz-Handschriften zur Mathematik: LH 35, 5, 9 — https://t.co/bXptcGSZfs

[Maths Ed @MathsEdIdeas]

@sciam https://t.co/IRL4b6pmcN

[Maths Ed @MathsEdIdeas]

#Today in 1675 Gottfried Leibniz first introduced his integral ∫ (long 's' for 'summa') and d ('differentia') notation, in the margin of his 'Methodi tangentium inversae exempla'.

View the manuscript — Leibniz-Handschriften zur Mathematik: LH 35, 5, 9 — https://t.co/bXptcGSZfs

[Maths Ed @MathsEdIdeas]

#Today in 1675 Gottfried Leibniz first introduced his integral ∫ (long 's' for 'summa') and d ('differentia') notation, in the margin of his 'Methodi tangentium inversae exempla'.

View the manuscript — Leibniz-Handschriften zur Mathematik: LH 35, 5, 9 — https://t.co/bXptcGSZfs

[Maths Ed @MathsEdIdeas]

• https://t.co/z45mABTD7O
• https://t.co/wn0IA8Kyyh
• https://t.co/xIzmU1ubBY
• https://t.co/3LeBVoVfe8

For more ideas visit https://t.co/CGpaYzekDz

And of course visit the #MathsWeekEngland site https://t.co/C9I6MPwntt

[Maths Ed @MathsEdIdeas]

To complement your #MathsWeekEngland (15-21 November) activities why not: perpetrate some random acts of maths, hold a favourite number election, set a mathsy ditloid challenge, and of course, share a mathsy joke or two.

Links to the free resources ↓

[Maths Ed @MathsEdIdeas]

@Math_files Recorde also invented the = sign in ‘The Whetstone of Witte’ (to ‘avoide the tediouse repetition of these woordes: is equalle to’) and was the first to use the + and – signs in English, thereby writing the first equation in today’s notation, 14x + 15 = 71. https://t.co/Rx54B1Bn1d

[Maths Ed @MathsEdIdeas]

Choose a number from any 'sword' and tell me the sequence of shapes on that 'sword', but lie about the shape that surrounds your chosen number... and I'll tell you that number → The 'Swords of Truth' trick, how it's done and the maths that makes it magic: https://t.co/qGBCpjrDxM

[Maths Ed @MathsEdIdeas]

I have a scary joke about math for #Halloween but I'm 2² to say it.

Did you know that ghosts solve quadratic equations by completing the scare?

Mathematicians always confuse Halloween and Christmas, because 31 Oct = 25 Dec.

Trig or treat!

[Maths Ed @MathsEdIdeas]

Updated: A catalogue of links to over 400 mathsy radio and podcast programmes, and over 20 podcasts dedicated to maths, to peruse and enjoy • https://t.co/e7Y8MCwni3

Including @stevenstrogatz @FryRsquared @SLSingh @d_spiegel @tomrocksmaths @MarcusduSautoy and many more

[Maths Ed @MathsEdIdeas]

@Math_files The most dangerous problem in mathematics. Was it a Cold War invention of the Soviets to slow the progress of mathematics in the West?! For the story of the Collatz conjecture: https://t.co/FCPTNUNJco

[Maths Ed @MathsEdIdeas]

I asked my German friend if he knew what the square root of 81 was. He said no.

For a collection of many more (some 200) mathsy jokes and puns: https://t.co/HJ4Etl6DmH

[Maths Ed @MathsEdIdeas]

A Friedman number is a number that can be written in a nontrivial way using its digits and the operations + − × ÷ ^ and concatenation. ‘Nice’ Friedman numbers have their digits in proper order. The only known 'nice' penholodigital Friedman number is:

https://t.co/s4RVojumqs

[Maths Ed @MathsEdIdeas]

There are 88 narcissistic numbers, from

153 = 1³ + 5³ + 3³, to

115,132,219,018,763,992,565,095,597,973,971,522,401 = 1³⁹ + 1³⁹ + 5³⁹ + 1³⁹ + 3³⁹ + 2³⁹ + ... + 2³⁹ + 2³⁹ + 4³⁹ + 0³⁹ + 1³⁹

but other than 1, there is only 1 Münchhausen number https://t.co/AquZiuistv:

[Maths Ed @MathsEdIdeas]

Planning for ‘stuckness’ in maths and ‘thinking through’ — rather than rigidly scripting — how we teach our students to get out of it: https://t.co/6NjggTtmdK

[Daniel Muijs @ProfDanielMuijs]

Why I don't believe in scripted approaches to teaching: On Direct Instruction and direct instruction, and why the distinction matters. https://t.co/1OBSDV4kIh

[Maths Ed @MathsEdIdeas]

Which square is larger?

HT https://t.co/BRSp4GIaw6

[Maths Ed @MathsEdIdeas]

Today is the 24th day of 10th month of the 26th year of this century.

24² + 10² = 26²

The last time most of us will witness a Pythagorean triple day.

[Maths Ed @MathsEdIdeas]

How many of these can you decode?

For a collection of 150 mathsy ditloids — themed and ranging in difficulty, from easy number facts to events in maths history and fiendish curios to work out — free to download, with and without answers…

https://t.co/lQnIjHKOeK

[Maths Ed @MathsEdIdeas]

@DeputyGrocott For maintained schools, at least 380 sessions (190 days) must be held at a school during any school year. Otherwise we could extend the school day by 45 minutes for 39 weeks and have another 6 weeks ‘holiday’! — STPCD and the Education (School Day and School Year) Regs 1999.