@over-drawn
Maths teacher secondary, A level, FM. Fan of mechanics and supporting pupils with additional university exams. Former professional singer. Profile pic was a favourite gift this year (and says a lot about my sense of humour).
It feels like the modulus sign is doing a lot of heavy lifting here.
Triple scalar is invariant under cyclic rotation of its components a.(bxc)=c.(axb)=b.(cxa). You can change the order to a more helpful triangular base e.g. 1/2|EM X EC|
1/3 of that dotted with any vector to the vertex gives volume.
A-level revision grid containing nine exam-style question on Year 2 sequences and series.
A-level revision grid containing eight exam-style question on Year 2 numerical methods.
More new A-level revision grids added today:
β¨Numerical Methods
β¨Sequences and Series
Available at www.draustinmaths.com/a-level-topics
Enjoy!
#ALevelMaths #UKMathsChat #MathsToday
You see, I was going to ask which of the, no doubt many, streamed services but I sense I'm Baching up the wrong trio (that may qualify as the most forced pun on Bluesky. How low I have fallen...)
Wouldn't the casio emulator work? I think it's web-based, so that might be more of an issue for exams.
How on earth do you know, aged 14 (when selecting your GCSEs) what you're going to use in your life. You should be exposed to as much as possible. Yes, you'll find things difficult/challenging but when has that ever meant it's not worthwhile.
I understand the feelings of guilt. I get that too. It's especially difficult with small children when you know you're not the only one struggling (sleep deprivation etc).
You're more likely to be there for your family if you have that space and, if you're anything like me, decidedly less grumpy.
I usually need space, if I'm down.
Reading, playing the piano, sometimes exploring some maths, or writing a question for a class that I think they might like.
Escapism or something that I can feel good about having achieved.
A grid of 16 practice questions involving generating difference types of sequences from their nth term.
A strip of practice questions involving recurrence relations - generating sequences, writing recurrence formulae and solving problems.
A strip of practice questions involving solving problems with quadratic sequences, including deciding whether numbers belong to sequences, finding nth term rules given some of the terms, and finding nth term rules for harder sequences.
A strip of practice questions involving solving problems with arithmetic sequences, including finding nth term rules given some of the terms, arithmetic sequences with algebra, and solving worded problems.
Lots of new sequences resources added to the site today:
β¨Problems with arithmetic sequences
β¨Problems with quadratic sequences
β¨Recurrence relations
β¨Generating different types of sequences
All freely available at www.draustinmaths.com/sequences
#MathsToday #UKMathsChat
Nothing says first day back quite like upping your intake of coffees by a factor of 2.5, temperature be damned.
My current L6 FM pupils get so hung up on domain and range of parametrics. I shall enjoy watching them get their head around these questions! Thank you for sharing.
A blank parametric equations worksheet displayed as a table. Columns are titled: x = p(t), y = q(t), Cartesian Equation f(x,y), Intersection with axes, Constraint on t, Domain, Range, and Sketch. Five rows contain given parametric pairs such as x = 3 β t, y = β4 + 3t; x = 3tΒ², y = 6t; x = 4 cos t, y = 2 sin t; x = 1 + 2 cos t, y = 3 + 2 sin t; and x = eΒ²α΅, y = eΒ³α΅, with remaining columns left blank for students to complete
second blank parametric equations worksheet in table format. Columns match the first sheet: x = p(t), y = q(t), Cartesian Equation f(x,y), Intersection with axes, Constraint on t, Domain, Range, and Sketch. Five rows include parametric definitions such as x = tΒ² β 1, y = t(tΒ² β 1); x = 3 cos 2t, y = 2 cos t; x = 1 + 2tΒ², y = β3 + 4t; x = ln(t β 2), y = 1/(t + 1) with t > 3; and x = cot t, y = 3 sin t for 0 β€ t β€ Ο, with other columns empty for completion.
A new A level task.
Really enjoyed watching the students think about this one:
kshancock.co.uk/aleveltasks....
#MathsToday
There are six small pink squares, and a larger tilted purple square which shares ones vertex with the bottom pink square. One vertex of the top pink square lies on the top edge of the purple square. A line from the bottom right vertex of the rightmost pink square makes an unknown angle with the left side of the purple square.
Seven squares. Whatβs the angle?
#geometrypuzzle
I remember this proof question (Wiseman et al) was fantastic for promoting that approach. Great fun.
I think I replicated this approach. I do love what I call "cleverly adding zero". My FM groups use it a lot to avoid algebraic division of improper fractions.
My offering, but I haven't thought too hard about it. There may be some flaws in my approach.
16 different questions on linear graphs.
Added quite a few new questions to the linear graphs unit today.
The screenshot is from a one-click mixed exercise.
An example assessment is here: shorturl.at/3ipnV
Amazing. Congratulations to you both.
It's going to be quite the photo recreation if you have hold him, supported on one arm. π
And nothing else?
This is a first attempt at categorising @catrionaagg.bsky.social 's puzzles by the techniques used to solve them.
My hope is that this makes it easier to use them in class.
notes.mathforge.org/notes/publis...
#mathsky #UKMathsChat #ITeachMath
The Mr Barton Maths website has just had a massive update. https://mrbartonmaths.com/
The Mr Barton Maths website has just had a massive update. Please share this post.
@mathsjem.bsky.social @susanwhitehouse.bsky.social
Great to see @jamesmunromaths.bsky.social and @oxfordmathematics.bsky.social offering TMUA prepartion sessions. Private tuition can make a big difference with these tests and anything to help level the playing fields is welcome.
#MathsToday #AlevelMaths #UKMathsChat
d/de (e^x) = xe^(x-1)
Mine eyes, mine eyes...
Facing a magistrate, perhaps π€
Examples of resources from gems post
New! My 196th gems post. Ideas, updates and resources for maths teachers. π
www.resourceaholic.com/2026/02/5-ma...
Hat tips to follow.
#mathstoday #ukmathschat #alevelmaths
What does a puncture up to your middle look like? Sounds like a very deflating experience...
To which the answer is, of course, yes.
A brief explanation of why dividing fractions becomes the multaplicative inverse
Apologies for the presentation.
To explain division, I do a bit of MWB work on three main things:
Check division by 1 is well understood.
Equivalent fractions
Multiplying fractions leading to, "What can I multiply this fraction by so that the result is one?"
I write a/b Γ· c/d as a single fraction and ask how to make denominator =1
Both happy and sad to read this. I still have A level pupils (and FM pupils) who can't explain why they do what they do with division of fractions. Well done class for insisting on maths π
Found out in #MathsToday that Cambridge have announced that they will now use both the TMUA *and* STEP for entry to the Mathematical Tripos from 2027 which follows Oxfordβs decision to swap MAT for TMUA last month. #ALevelMaths teachers take note, source here: www.christs.cam.ac.uk/study-here/u...
