Sarah Denison
@sarahdenisonmei.bsky.social
930 followers 250 following 500 posts
Maths lover. Maths educator. Maths education support lead and equity, diversity and inclusion advisor. Passionate about representation in maths. Opinions and cute pets all my own.
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sarahdenisonmei.bsky.social
Trying to be more present here and so wanted to share my work in progress padlet on Diversifying the Mathematics Curriculum. I am also keen to come and lead assemblies for students and PD for teachers (free!) on this subject if anyone is interested!

padlet.com/sarahdenison...
Diversifying the mathematics curriculum
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Reposted by Sarah Denison
catrionaagg.bsky.social
In #MathsToday I made 40 A Level teachers colour in representations of the binomial distribution.

This is your regular reminder that if you teach #ALevelMaths you should definitely try to join your local Maths Hub’s A Level Pedagogy group. There is some brilliant stuff going on all over England.
A quartet of representations of the binomial distributions. Screenshots from https://www.desmos.com/calculator/3ea50eafbc X ~B (10, 0.4)
Shade the diagrams to represent the probability
P(3 ≤X <6)
and draw a numberline. X~B(10,0.4)
Shade the diagrams to represent the probability P(3 ≤ X < 6) and draw a
numberline.

X ~ B(8, 0.7)
Which is larger:
P(X < 5) or P(X = 6)?

X~B(12,0.36)
P(X ≥ c) < 0.5
What is the smallest possible value of c? X~B(10,0.4)
Calculate the interquartile range of this distribution.
What is the mode?

X~B(8, 0.7)
P(X ≤ a) < 0.1
What is the largest possible value of a?
P(X ≥ b) < 0.1
What is the smallest possible value of b?

X~B(12,0.36)
P(X ≤ a) < 0.2
What is the largest possible value of a?
P(X ≥ b) < 0.2
What is the smallest possible value of b?
sarahdenisonmei.bsky.social
Feels like ages since I have a proper London trip. Off to spend a couple of days with the fabulous HG Foundation and then Saturday doing one of the best parts of my job - leading at a Year 13 Further mA*ths masterclass day 😁 #ALevelMaths
Reposted by Sarah Denison
cipher-challenge.bsky.social
Over 5000 already registered at www.cipherchallenge.org ready for the practice challenges to start tomorrow at 3pm. If you are aged 11-18 and want to learn codebreaking and show the world what you can do then head over and sign up!
National Cipher Challenge
An annual codebreaking competition for UK schools and homeschooled students run by the School of Mathematical Sciences at the University of Southampton
www.cipherchallenge.org
Reposted by Sarah Denison
meimaths.bsky.social
Ritangle 2025 is here!

Answer question 1 (please DO NOT give away the answer below!) then head over to buff.ly/lchWXbU to register your team.

A level maths teachers, don’t miss out on this exciting opportunity for your students!

#ALevelMaths #Ritangle2025
Reposted by Sarah Denison
natalievmei.bsky.social
#ICTMT17 is going to be fantastic - maths tech designers, teachers and academic researchers from across the world will be there to discuss all aspects of using tech in our maths classrooms & #MEI is sponsoring 10 teacher places - buff.ly/mnzr2N5 Tell your friends!! 🤩🤩 ictmt17.org.uk/workshop-pro...
meimaths.bsky.social
We are proud to be sponsoring 10 places to attend the teacher day at ICTMT17 in London on 22 Oct buff.ly/piLruty

Take part in workshops, meet sector leaders, hear MEI’s Tom Button & Natalie Vernon on using Desmos

Apply: buff.ly/mnzr2N5

#ICTMT17 #MathsEd
Reposted by Sarah Denison
meimaths.bsky.social
Are you ready for Ritangle 2025 starting tomorrow?

We had 1,700 teams last year and are hoping to welcome even more this year!

Enjoy the challenge: buff.ly/eVGNIZY

#Ritangle2025 #MathsTeaching #MathsChallenge
Reposted by Sarah Denison
meimaths.bsky.social
We are proud to be sponsoring 10 places to attend the teacher day at ICTMT17 in London on 22 Oct buff.ly/piLruty

Take part in workshops, meet sector leaders, hear MEI’s Tom Button & Natalie Vernon on using Desmos

Apply: buff.ly/mnzr2N5

#ICTMT17 #MathsEd
sarahdenisonmei.bsky.social
This drives me mad. So annoying!
sarahdenisonmei.bsky.social
I think it's Saturday (I hope it is!)
sarahdenisonmei.bsky.social
Ruin the friendship is beautiful. Also loved The Bolter. Not sure it is my fave TTPD but is excellent.
sarahdenisonmei.bsky.social
Happy Swiftmas! She smashed it. What an album. Currently on listen 4, out of office all day 😂
sarahdenisonmei.bsky.social
It is SO GOOD! I am loving how brutal Actually Romantic is. What a gloriously fun album ❤️
sarahdenisonmei.bsky.social
Well done to your fabulous students 😁
sarahdenisonmei.bsky.social
oh yes - I am in full 🤡 mode!!!
sarahdenisonmei.bsky.social
In my showgirl era #TS12 #TLOAS #notmaths #nailart
Reposted by Sarah Denison
meimaths.bsky.social
Want to strengthen maths teaching across your school? Join our free 60-min webinar that explores how to implement the Oak National Academy Primary Maths Resources and plan a whole-school rollout.

7 Oct | Free

🔗 buff.ly/oYYEHWl

#PrimaryMaths #MathsLeadership
sarahdenisonmei.bsky.social
I am having a tricky week (is it really only Monday??) so have put on my ultimate comfort film.

What is the film or show you put on when you need a warm hug?
sarahdenisonmei.bsky.social
My kids are 15, 17 and 23. The future is bright 🔆❤️
sarahdenisonmei.bsky.social
A few years ago one of my students started teaching my son. I felt ancient.
sarahdenisonmei.bsky.social
"The examiner can't guess what is in your head - make it clear"
sarahdenisonmei.bsky.social
I really hope they are able to help 🤞
sarahdenisonmei.bsky.social
Have you tried to contact them? It might be worth it and hopefully they can find things. The emails were a while ago & the one to my personal email ended up in junk. The original take over was a couple of years ago but was June this year that it changed from being on the Desmos website to Amplify.
sarahdenisonmei.bsky.social
This isn't the case at all. All my activities are in Amplify. There was an email quite a few months ago about it so worth finding that if possible or contacting Amplify. I use the same email and password as I did on Desmos and have all my activities.