David C @[email protected] @dlcmaths.bsky.social

Maths, puzzles, board games, banjo

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@wtgowers I remember this question so well! Yes, appalling notation which a bright pupil can work out. Edexcel really didn't know how to examine this effectively, when the new syllabus started.

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@paulg I prefer this one, as it emphasises length rather than area: https://t.co/ifVDqG446H

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@adamboxer1 @Tom_does_maths I disagree with this - at A Level or equivalent there should be deliberate practice time built in to lessons so that pupils have the chance to develop their skills with guidance. Absolutely agree it needs to be backed up with homework / interleaving

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@greg_ashman It's not just visible, it's inevitable

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@stevenstrogatz You can get a nice approximation by solving x=1-x^2/2

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@Antion__ @BrianInCrypto @MIT My thoughts exactly - these probability problems are the expected standard for 18yo students to gain entry to Oxford & Cambridge for maths...

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@taliaotg Ah yes, classic Chesterton's Fence

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@PeterMcCormack @lisakeb007 The problem is that you can't debate if you don't know anything. The same is true about critical thinking: what would you think critically about if it didn't have any knowledge?

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@boycereads A recent favourite is the Children of Time series - Adrian Tchaikovsky

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@amanda_spielman I strongly disagree with you on this - fluency should be prioritised, but a formula sheet allows pupils to concentrate on the problem-solving aspects of exam questions rather than tripping themselves up by accidentally switching a sign, etc. Also frees up working memory.

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@MarkGottlieb @dieworkwear It's definitely not...

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@HaleyCarrots Go for the original: Miss Marple https://t.co/Q6G9NEaGIt

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@rieszspieces @girlbossmoder https://t.co/ztQxR43tc0

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@oldandrewuk ...such as the local advocacy group that collected all the complaints and pushed the agenda that led to the enquiry? What a surprise!

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@JimGamble_INEQE @greg_ashman Once again, deflection and evasion. It may be that you are not cut out for debates on Twitter. You have had several valid questions put to you but I have not seen any attempt to address them. You hide behind puerile behaviour and it's hard to take you seriously.

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@tstarkey1212 It is strange - as far as I can see, one side is engaging with the issues and asking valid procedural questions, the other is retorting with ad hominem attacks, generalities and evasion.

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@HarinaBassi @maths @mathsjem Another thought - check out AEA papers for nice, challenging questions on standard A Level topics

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@HarinaBassi @maths @mathsjem Lots of nice things in https://t.co/kwzcYr5ZjG or https://t.co/WQYqrPChlW - and of course the GOAT https://t.co/wpcw2o6ctj

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@IanYorston Ditto for nothing memorised. By Rolle's theorem there must be an amount of memorisation that optimises the ability to synthesise and make meaning. Any thoughts on where that might be...?

[David C @[email protected] @dlcmaths.bsky.social @dlcmaths]

@colin_fraser Now ask him what it looks like in base 3