@SegarRogers Profile picture

Segar Rogers

@SegarRogers

Secondary maths teacher. Old enough to remember chalk.

Similar User
Amanda Austin photo

@draustinmaths

Rob Southern photo

@mrsouthernmaths

Chris McGrane photo

@ChrisMcGrane84

Mrs Jagger photo

@JaggersMaths

Paul Rowlandson photo

@DrRowlandson

White Rose Maths Secondary photo

@WRMathsSec

Amie Meek photo

@alcmaths

Nathan Day photo

@nathanday314

Sam Blatherwick photo

@blatherwick_sam

Avinash_Math photo

@Avi_Maths

Dave Taylor photo

@taylorda01

Jack Brown photo

@TLMaths

Nicola Waddilove photo

@MathsPadNicola

Jess Prior photo

@FortyNineCubed

Mr Hart photo

@hartmaths

ChatGPT. Pinch. Of. Salt.

Tweet Image 1

Crazy thought-experiment. Take a class and teach them: • quotative and partitive division concepts ... but teach them to write 12 ÷ 3 as 3 ÷ 12, mirroring the linguistic order of '3s into 12'. Would quotative strategies dominate their thinking? Crazy ;-)


Why are pupils so inclined to divide partitively rather than quotatively? The latter rarely crosses their mind … hence why 6 ÷ ¼ is deemed hard. Is it linguistic? (‘6 divided BY 2’ vs ‘2 divided INTO 6’?) … and semiotically the ÷ symbol in 6 ÷ 2 attaches itself to the former?


Set a timer. Put these in area order. Largest to smallest. Stop the timer. Justify your order.

Tweet Image 1

Still struggling with the ugly black X icon. Going to BlueSky for a while to see what the weathers like. @segarrogers.bsky.social


Trying to build a definition for 'progress' on pupil tracking reports . Considering dual indicators as a solution. This is me just playing with ideas. Aware some of it may be contentious. Would welcome robust criticism. @ChrisMcGrane84 @AndyBrown314 @garyl82 @mcnally_gerry

Tweet Image 1
Tweet Image 2

Graphical constructions of areas that satisfy the condition A + B = A × B i.e. the identity sec² θ + cosec²θ ≡ sec² θ × cosec²θ Bottom left represents A=2, B = 2. @catrionateaches @mcconvillemaths

Tweet Image 1

A surprising identity in @catrionateaches tweet. Suggests maybe the following pupil task: ‘Try and find as many pairs of numbers such that a + b = a × b’ A possible prompt just as the class gives up: 6 and 1⅕ ?

I spent a lot of time modelling how I wanted Y13 to set out their ‘show that’ questions. With one class, we immediately did some practice that I live-marked, and all but one student was setting it out perfectly. With another, I set the practice as homework, due today…

Tweet Image 1


I keep looking that this. 'What fraction is shaded?' What education system builds you into the person that puts a 2 on the bottom edge with the foresight that it will end so well?!


⊕⊖ zero-pairs alongside a subtraction-as-difference model. S1 were happily engrossed in this today :-) (I always feel subtraction-as-difference is under-developed in pupils … their tendency is to count-back … which is no help in this scenario).

Tweet Image 1
Tweet Image 2

Hopefully this is reasonably gentle.

Tweet Image 1

1931 Scottish Lower Grade, Paper 2. Try solving it without any algebraic manipulation or quadratic wizardry ;-) Some people will maybe just see it. @mrallanmaths

Tweet Image 1

Reading Guskey about reporting in 'On Your Mark'. In my school we report using 7 possible grades (1-7). Guskey argues that if you reduce that to 4 grades (A-D) you reduce the potential for misclassification. I see it … but equally I wonder if there's a flaw in the argument.

Tweet Image 1

Thinking again about Tracking & Reporting. Does anyone work in a school that reports on the impact of mobile phones in class in their pupil reports? Good idea? Bad idea? Pros? Cons?

Tweet Image 1

Continued fractions with the new S2. Once you get into a rhythm they’re actually very doable … it’s just the same process iterated. One pupil did all of them in his head :-)

Tweet Image 1
Tweet Image 2

Nearly didn't attempt this with my new S2 last thing today on a baking hot sunny afternoon … but it was worth it. Subtraction as counting-on, place-value mental arithmetic, decomposition awareness … and cognitive load at its limits ;-) Well done S2.

Tweet Image 1

Interesting solutions from: @Mirangu1 @steph_bernard69 @HowTutorial @panlepan @MatthewArcus Here's how I see it. @Cshearer41 @ProfSmudge @suffolkmaths ... angles on the arcs ... trying to convert you ;-)

Tweet Image 1

Inspired by something similar I saw from @edsouthall a while ago. Straightforward ... if you know what you're doing. Don't you hate it when teachers say that ;-)

Tweet Image 1


Inspired by something similar I saw from @edsouthall a while ago. Straightforward ... if you know what you're doing. Don't you hate it when teachers say that ;-)

Tweet Image 1

Loading...

Something went wrong.


Something went wrong.