MathsJames

Teacher of Maths and Further Maths. All views my own.

[MathsJames @MathsJames1]

@DrChris_Baker @Trudgeteacher @Ridermeister @TeaKayB @Sheena2907 @MrsDMaths Oh completely agree. Definitely wasn’t saying something should be taught just because it’s in the exam spec. It should be taught for understanding; however aware that this doesn’t seem to be sufficient reason for some - but more chance they might given it’s included.

[MathsJames @MathsJames1]

@Trudgeteacher @Ridermeister @TeaKayB @Sheena2907 @MrsDMaths The exam board specs specifically mention needing to know the link to product rule so one would hope so (although would be interested if any of the boards have integrated this - sorry! - within an exam question)

[MathsJames @MathsJames1]

@Ridermeister @edmunds_dr ^ excluding STEP papers where I still feel I have little idea about how hard a question really is until I’m way down the track…

[MathsJames @MathsJames1]

@paddymac_maths No, would also be interesting to take large samples of this and build up the distribution of sample means. I use the Cauchy distribution to show why CLT needs finite variance and expectation.

[MathsJames @MathsJames1]

@TheMathsBazaar I’d agree with @Ridermeister about hardest q’s. Whilst more content in GCSE if that is the challenge, imo they’re not conceptually difficult

@rgsheadmaster wrote a good piece on GCSE vs IGCSE a few years ago. Nobody’s wants non comparable qualifications

https://t.co/oNkkuTfMQd

[MathsJames @MathsJames1]

@Hass12314 sqrt(9/25)+sqrt(1/4)-sqrt(4/25)
=3/5 + 1/2 - 2/5 = 7/10 = 70%

[MathsJames @MathsJames1]

@MathsJF @DrBennison https://t.co/EBatp46Jew

[Stuart Price @sxpmaths]

@TLMaths @AQAMaths @Edexcel @OCR_Maths @MEImaths @p_glaister It's in Edexcel's specification. What do the others say?

[MathsJames @MathsJames1]

@HawesMaths It does but how would you know not to do x - 4/x = 0 first like the others?

[MathsJames @MathsJames1]

@suffolkmaths @jemmaths I honestly don’t see why you wouldn’t just replace Qs on content not taught. I think the grade boundaries argument is a weak one esp. given available QLA data. The only reason I can see is ease/lack of time. Setting pupils up to fail or try and teach themselves seems wrong.

[MathsJames @MathsJames1]

@Ridermeister @mathsjem @Arithmaticks @ColinTheMathmo @DrFrostMaths @EmathsUK @SLSingh @robeastaway @Mathematical_A @MathsNot @TLMaths Maybe @standupmaths - although this isn’t a joke!

[MathsJames @MathsJames1]

@jemmaths I’d go further than this - why do it for Year 11 “mocks”!?

[MathsJames @MathsJames1]

@MathsImpact @missradders https://t.co/Xh3rxzb8Ra Have you voted!?

[MathsJames @MathsJames1]

Can the interior angle of a polygon be 180°?

@PearsonEdexcel #IGCSE Mathematics 4MA1/1H Q24

[MathsJames @MathsJames1]

@Ridermeister

[MathsJames @MathsJames1]

Can the interior angle of a polygon be 180°?

@PearsonEdexcel #IGCSE Mathematics 4MA1/1H Q24

[MathsJames @MathsJames1]

@ECR_Maths @littlemsmaths

[MathsJames @MathsJames1]

@chris_juravich The answers below relying just on the King property seem flawed.

Consider the integral, I, of x/((x-2)(x+2)) from -2 to 2. By King property, this equals integral between-2 and 2 of -x/((x-2)(x+2))=-I so I=0.

This is incorrect as we must consider if improper integrals converge.

[MathsJames @MathsJames1]

@MrHoadMaths @missradders It’s the “5.” and “9.” at the top which I really object to.

[MathsJames @MathsJames1]

@DrFrostResource @DrFrostMaths @DrJamieFrost Might you mention the memoryless property? Quite useful and in some exam boards for FStats too - would make the last question easier and thought it was going to make an appearance after the last slide.

[MathsJames @MathsJames1]

@MathsNot Nor would one get away with such a terrible vertical axis at A Level, I’d hope!