Richard Perring
@learningmaths.bsky.social
Maths, education and maths education.
(occasionally puns and cream tea arguments)
Associate Deputy Director Secondary, NCETM | Assistant Maths Hub Lead | General Council, ATM.
Opinions my own
(occasionally puns and cream tea arguments)
Associate Deputy Director Secondary, NCETM | Assistant Maths Hub Lead | General Council, ATM.
Opinions my own
Reposted by Richard Perring
It’s not far off… but far enough out that I’m not convinced !!
December 25, 2025 at 9:41 PM
It’s not far off… but far enough out that I’m not convinced !!
I just walked past this and noticed three triangles. I’m pretty confident that, if this was done accurately, the three triangles are congruent.
Are you convinced?
How do you see it?
Are you convinced?
How do you see it?
December 25, 2025 at 6:11 PM
I just walked past this and noticed three triangles. I’m pretty confident that, if this was done accurately, the three triangles are congruent.
Are you convinced?
How do you see it?
Are you convinced?
How do you see it?
Reposted by Richard Perring
Which is the best tier of Entry for GCSE maths predicted grades 5 students? EEF funded research. Two more days to complete this survey for maths HoD/KS4 maths leads. Prize draw for a voucher.
shusls.eu.qualtrics.com/jfe/form/SV_...
Grateful for reposts @mathsjem.bsky.social @mathsimpact.bsky.social
shusls.eu.qualtrics.com/jfe/form/SV_...
Grateful for reposts @mathsjem.bsky.social @mathsimpact.bsky.social
Qualtrics Survey | Qualtrics Experience Management
The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.
shusls.eu.qualtrics.com
December 15, 2025 at 5:51 PM
Which is the best tier of Entry for GCSE maths predicted grades 5 students? EEF funded research. Two more days to complete this survey for maths HoD/KS4 maths leads. Prize draw for a voucher.
shusls.eu.qualtrics.com/jfe/form/SV_...
Grateful for reposts @mathsjem.bsky.social @mathsimpact.bsky.social
shusls.eu.qualtrics.com/jfe/form/SV_...
Grateful for reposts @mathsjem.bsky.social @mathsimpact.bsky.social
Hello Secondary maths community,
I know that ‘I do, we do, you do’ is a very common classroom structure and am thinking about other ‘named’ lesson structures that people are regularly using?
Anyone have any others to add to my list
I know that ‘I do, we do, you do’ is a very common classroom structure and am thinking about other ‘named’ lesson structures that people are regularly using?
Anyone have any others to add to my list
December 14, 2025 at 10:10 AM
Hello Secondary maths community,
I know that ‘I do, we do, you do’ is a very common classroom structure and am thinking about other ‘named’ lesson structures that people are regularly using?
Anyone have any others to add to my list
I know that ‘I do, we do, you do’ is a very common classroom structure and am thinking about other ‘named’ lesson structures that people are regularly using?
Anyone have any others to add to my list
Today is the first day of @amiemathematics.bsky.social
It’s exciting to see what the future might bring…
It’s exciting to see what the future might bring…
December 1, 2025 at 8:10 AM
Today is the first day of @amiemathematics.bsky.social
It’s exciting to see what the future might bring…
It’s exciting to see what the future might bring…
Reposted by Richard Perring
Opinions welcome!
November 29, 2025 at 12:47 PM
Opinions welcome!
I agree with @honeypisquared.bsky.social and @darrenmacey.bsky.social that there’s a lot to like in this book, but this image for multiplication of mixed numbers made me itch *so* much!
November 20, 2025 at 3:59 PM
I agree with @honeypisquared.bsky.social and @darrenmacey.bsky.social that there’s a lot to like in this book, but this image for multiplication of mixed numbers made me itch *so* much!
Reposted by Richard Perring
We're thrilled for Dr Cat Scutt MBE who will be joining the PTI as their CEO in Spring 2026! 👏
Read more here:https://chartered.pulse.ly/vwbusmyufd
Read more here:https://chartered.pulse.ly/vwbusmyufd
November 18, 2025 at 12:01 PM
We're thrilled for Dr Cat Scutt MBE who will be joining the PTI as their CEO in Spring 2026! 👏
Read more here:https://chartered.pulse.ly/vwbusmyufd
Read more here:https://chartered.pulse.ly/vwbusmyufd
This is maybe the best introduction to a maths education book ever?!
From ‘Seeing the Math You Teach’ which I bought after listening to this
creators.spotify.com/pod/profile/...
from @honeypisquared.bsky.social and @darrenmacey.bsky.social
From ‘Seeing the Math You Teach’ which I bought after listening to this
creators.spotify.com/pod/profile/...
from @honeypisquared.bsky.social and @darrenmacey.bsky.social
November 16, 2025 at 5:00 PM
This is maybe the best introduction to a maths education book ever?!
From ‘Seeing the Math You Teach’ which I bought after listening to this
creators.spotify.com/pod/profile/...
from @honeypisquared.bsky.social and @darrenmacey.bsky.social
From ‘Seeing the Math You Teach’ which I bought after listening to this
creators.spotify.com/pod/profile/...
from @honeypisquared.bsky.social and @darrenmacey.bsky.social
Reposted by Richard Perring
November 14, 2025 at 4:16 PM
A maths joke I hadn’t seen before!
November 7, 2025 at 6:04 PM
A maths joke I hadn’t seen before!
Nice pub quiz question tonight
If January 1st is 1
December 31st is 365
What is October 31st?
How did you work it out?
If January 1st is 1
December 31st is 365
What is October 31st?
How did you work it out?
October 27, 2025 at 9:44 PM
Nice pub quiz question tonight
If January 1st is 1
December 31st is 365
What is October 31st?
How did you work it out?
If January 1st is 1
December 31st is 365
What is October 31st?
How did you work it out?
Reposted by Richard Perring
Book Review:
A Little History of Mathematics
Author: @snezanalawrence.bsky.social
Published in Annals of Science and #FREE to read! @tandfresearch.bsky.social
www.tandfonline.com/doi/full/10....
A Little History of Mathematics
Author: @snezanalawrence.bsky.social
Published in Annals of Science and #FREE to read! @tandfresearch.bsky.social
www.tandfonline.com/doi/full/10....
October 22, 2025 at 4:53 PM
Book Review:
A Little History of Mathematics
Author: @snezanalawrence.bsky.social
Published in Annals of Science and #FREE to read! @tandfresearch.bsky.social
www.tandfonline.com/doi/full/10....
A Little History of Mathematics
Author: @snezanalawrence.bsky.social
Published in Annals of Science and #FREE to read! @tandfresearch.bsky.social
www.tandfonline.com/doi/full/10....
I’ve said it before - this programme from @ncetm.bsky.social is one of the best PD programmes I’ve been involved with (and I’ve been around for years!)
It sounds ridiculous to say that applications for 2026 will open soon
Have a read and register you interest.
www.ncetm.org.uk/features/bui...
It sounds ridiculous to say that applications for 2026 will open soon
Have a read and register you interest.
www.ncetm.org.uk/features/bui...
Building depth, confidence and collaboration through the Secondary Mastery Specialist Programme
A teacher shares how the programme has influenced her practice, her department, and her students
www.ncetm.org.uk
October 24, 2025 at 7:32 AM
I’ve said it before - this programme from @ncetm.bsky.social is one of the best PD programmes I’ve been involved with (and I’ve been around for years!)
It sounds ridiculous to say that applications for 2026 will open soon
Have a read and register you interest.
www.ncetm.org.uk/features/bui...
It sounds ridiculous to say that applications for 2026 will open soon
Have a read and register you interest.
www.ncetm.org.uk/features/bui...
Reposted by Richard Perring
One way of thinking of a division A÷B is to find a way to change B to 1.
In the case of 21÷3, say, we get 21/3 ÷ 3/3 = 7÷1 = 7;
in the case of 3/4 ÷ 1/4 we get 3/4 * 4 ÷ 1/4 * 4 = 3÷1 = 3.
Put another way,
If 3 shares are 21, what is 1 share?
If 1/4 share is 3/4, what is 1 share?
[Useful?? Dunno!]
In the case of 21÷3, say, we get 21/3 ÷ 3/3 = 7÷1 = 7;
in the case of 3/4 ÷ 1/4 we get 3/4 * 4 ÷ 1/4 * 4 = 3÷1 = 3.
Put another way,
If 3 shares are 21, what is 1 share?
If 1/4 share is 3/4, what is 1 share?
[Useful?? Dunno!]
October 20, 2025 at 4:17 PM
One way of thinking of a division A÷B is to find a way to change B to 1.
In the case of 21÷3, say, we get 21/3 ÷ 3/3 = 7÷1 = 7;
in the case of 3/4 ÷ 1/4 we get 3/4 * 4 ÷ 1/4 * 4 = 3÷1 = 3.
Put another way,
If 3 shares are 21, what is 1 share?
If 1/4 share is 3/4, what is 1 share?
[Useful?? Dunno!]
In the case of 21÷3, say, we get 21/3 ÷ 3/3 = 7÷1 = 7;
in the case of 3/4 ÷ 1/4 we get 3/4 * 4 ÷ 1/4 * 4 = 3÷1 = 3.
Put another way,
If 3 shares are 21, what is 1 share?
If 1/4 share is 3/4, what is 1 share?
[Useful?? Dunno!]
Reposted by Richard Perring
One quarter of a number is three quarters.
Two quarters of a number is six quarters.
Three quarters of a number is nine quarters.
Four quarters of a number is twelve quarters.
Two quarters of a number is six quarters.
Three quarters of a number is nine quarters.
Four quarters of a number is twelve quarters.
October 20, 2025 at 11:40 AM
One quarter of a number is three quarters.
Two quarters of a number is six quarters.
Three quarters of a number is nine quarters.
Four quarters of a number is twelve quarters.
Two quarters of a number is six quarters.
Three quarters of a number is nine quarters.
Four quarters of a number is twelve quarters.
Reposted by Richard Perring
The follow up in my head was what is one quarter, three quarters of, and I actually love this answer and the generalisation that ensues
October 19, 2025 at 9:19 PM
The follow up in my head was what is one quarter, three quarters of, and I actually love this answer and the generalisation that ensues
Reposted by Richard Perring
October 19, 2025 at 10:10 AM
Maybe a better way to ask is:
One-quarter of a number is three-quarters.
What’s the number?
One-quarter of a number is three-quarters.
What’s the number?
“What is three-quarters, one-quarter of?”
My thinking to get to an answer was way more convoluted than it needed to be!
My thinking to get to an answer was way more convoluted than it needed to be!
October 19, 2025 at 8:22 PM
Maybe a better way to ask is:
One-quarter of a number is three-quarters.
What’s the number?
One-quarter of a number is three-quarters.
What’s the number?
“What is three-quarters, one-quarter of?”
My thinking to get to an answer was way more convoluted than it needed to be!
My thinking to get to an answer was way more convoluted than it needed to be!
October 19, 2025 at 8:06 PM
“What is three-quarters, one-quarter of?”
My thinking to get to an answer was way more convoluted than it needed to be!
My thinking to get to an answer was way more convoluted than it needed to be!
Reposted by Richard Perring
… So, with maths particularly, if there was a way to pick the most important bits, and just do those, a student may get a 4/5 whereas when doing more they get a 3 because no time to consolidate. So a half at 5 may be more valuable than full at 3.
October 11, 2025 at 11:17 AM
… So, with maths particularly, if there was a way to pick the most important bits, and just do those, a student may get a 4/5 whereas when doing more they get a 3 because no time to consolidate. So a half at 5 may be more valuable than full at 3.
Reposted by Richard Perring
📣 #MathsConf39: Effective Revision with Deb Friis
Is “just loads of exam questions” enough? Explore research-backed strategies, mastery & disciplinary literacy to make GCSE revision more meaningful across KS3 & KS4.
completemaths.com/community/ma...
#UKMathsChat
Is “just loads of exam questions” enough? Explore research-backed strategies, mastery & disciplinary literacy to make GCSE revision more meaningful across KS3 & KS4.
completemaths.com/community/ma...
#UKMathsChat
September 26, 2025 at 4:03 PM
📣 #MathsConf39: Effective Revision with Deb Friis
Is “just loads of exam questions” enough? Explore research-backed strategies, mastery & disciplinary literacy to make GCSE revision more meaningful across KS3 & KS4.
completemaths.com/community/ma...
#UKMathsChat
Is “just loads of exam questions” enough? Explore research-backed strategies, mastery & disciplinary literacy to make GCSE revision more meaningful across KS3 & KS4.
completemaths.com/community/ma...
#UKMathsChat
Reposted by Richard Perring
UK, Online: Meet today’s Tech Heroes! (KS2/7-11). Meet three incredible female role models working in tech and find out what they do day-to-day, what skills they use and how they use computing to improve our lives! 14 Oct, 9-9:45am free #ALD25 findingada.com/event...
October 9, 2025 at 8:14 PM
UK, Online: Meet today’s Tech Heroes! (KS2/7-11). Meet three incredible female role models working in tech and find out what they do day-to-day, what skills they use and how they use computing to improve our lives! 14 Oct, 9-9:45am free #ALD25 findingada.com/event...