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Jacob Merrill

@islesofwhatif.bsky.social
629 followers 761 following 38 posts

Phase Leader/Y4 teacher from Norfolk. I create and post open-ended maths tasks for KS2 (7-11) that promote creativity/curiosity islesofwhatif.com Trustee for @atmmathematics.bsky.social Views my own.

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Reposted by Jacob Merrill
Simon Smith @smithsmm.bsky.social · 07/12/2025
So here they my favourite 40 picturebooks of 2025 (actually there are 42). Merry Christmas! #FavePicturebooks25 #PicturebookPage
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Jay Timotheus @jaytimotheus.bsky.social · 08/09/2025
I'm also part of this 'podcast thing'... Do have a listen! podcasts.apple.com/us/podcast/m... open.spotify.com/show/3cJF2EX... @atmmathematics.bsky.social
podcasts.apple.com
MT talk
Education Podcast · Updated Daily · The MT talk podcast is a space for conversations about mathematics teaching, based on articles published in Mathematics Teaching, the journal of the Association of ...
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Mr_Minchin @mr-minchin.bsky.social · 18/04/2025
Bit nervous to share but, it’s here! Available to pre-order. If you use MINCHIN35 you should get 35% (if you fancied!) A huge thank you to everyone who has supported, inspired & challenged me over the past however many years l've been posting playful activities online 🙌 #playinupperprimary
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Pip - Accomplish Education @accomplishedu.bsky.social · 28/03/2025
Fractions always a topic where visuals can help. However need children to decide the questions. E.g “What if we had …….. " Polypad is great for working with children rather than asking them to watch a 'fixed’ PPT animation. Love Polypad. @polypad.bsky.social @davidporas.bsky.social
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Jacob Merrill @islesofwhatif.bsky.social · 17/04/2025
This task provoked some interest at my conference session this week so I thought I'd share to see if anyone fancied having a go. Polypad interactive to assist with attempts (you can drag copies of the triangles): polypad.amplify.com/p/cR6OglvIOO... #mathstoday #ukmathschat
Continuous Quadrilaterals Task
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Ruth Bull @rfb23.bsky.social · 15/04/2025
Really enjoying exploring with triangles in #MathsToday #FPTC2025 with Jacob Merrill
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Jacob Merrill @islesofwhatif.bsky.social · 13/04/2025
Looking forward to seeing people at FPTC conference this week. I'll be exploring how exploratory variation might illuminate beauty and power through the surprising use of equilateral triangles. Why not try one of the tasks online? islesofwhatif.com/2023/10/03/t... @atmmathematics.bsky.social
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 09/04/2025
Look at this! Taken from Satisfraction, the new book from @profsmudge.bsky.social which is available to order now. atm.org.uk/Shop/Satisfr...
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Catriona Agg @catrionaagg.bsky.social · 09/04/2025
Next week I'll be at the @mathematicala.bsky.social @atmmathematics.bsky.social joint conference (exciting!) along with my conference buddy @mathforge.org If you're also going, would you like to join our conference buddy gang? The deal is we meet up at the end of each day and compare notes.
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St Thomas Cantilupe Church of England Primary @st-thomascantilupe.bsky.social · 07/03/2025
Gardening gang loved tending to the stumpery this week. Beautiful crocus, narcissus, snowdrops, and primroses are mingled in with ferns. @herefordshirewt.bsky.social @gardenersworldmag.bsky.social @wildflowerhour.bsky.social @minilebowski.bsky.social #lovestc #perseverancestc #unitystc
Crocus flowers Stumpery with crocus flowers and ferns Ferns and crocus flowers Stumpery
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Simon Gregg @simon-gregg.bsky.social · 06/03/2025
Popped into the K class and saw this... pattern blocks on pattern blocks
children create a huge growing shape on the floor with giant pattern blocks, placing the same shape block in smaller version on each giant shape
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Peter Lacey 🇺🇦 @ecarda1.bsky.social · 18/02/2025
So true. Long may the @atmmathematics.bsky.social messaging of learning mathematics by making and doing mathematics be broadcast. It was reaffirmed in "Better Mathematics"
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Simon Smith @smithsmm.bsky.social · 20/02/2025
Love this debut from Portuguese writer #InesViegasOliviera. “The Duel” is a profound and thoughtful tale of letting go of past conflicts and seeing beyond the hate. Two men duel but one just keeps walking. Change in palettes show the change in thought and outlook. Quietly great #PicturebookPage
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Dan Wuori @danwuori.bsky.social · 18/02/2025
My next book - a journey through child development from prenatal to age three - will be called Wonderment…and for good reason. There’s not a lot that arouses awe in us as adults. After a point we’ve mostly seen it all. We’ve been there and done that. Thread 🧵
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Jacob Merrill @islesofwhatif.bsky.social · 18/02/2025
Three triangles. Many tasks. One goal: to show how playful explorations of these mathematical objects can transform perspectives. Simple words can hold beauty and power in a poem, can simple mathematical objects hold the same? KS2/3 workshop @atmmathematics.bsky.social @mathematicala.bsky.social
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NumberClub @numberclub.com · 17/02/2025
Maths has such an appalling record of putting people off the subject for life, that we should build appreciation for maths into everything we ask learners to do.
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Dr Helen J Williams 🇪🇺🇵🇸 @helenjwc.bsky.social · 13/02/2025
This article by Skemp written in 1983 & reproduced in @atmmathematics.bsky.social MT journal 293 is still extremely pertinent: “if we were to teach music the way we teach maths we would only succeed in putting most of them off for life.” >>
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Dr. Aaron Bradbury @aaronearlyyears.bsky.social · 14/02/2025
www.early-years-reviews.com/play-matters We have some news. An update. You are not going to want to miss this. Play Matters will be out on March 18th 2025 🥳🥳🥳🥳 “Play Matters” – A Groundbreaking Free Guide to Champion the Power of Play in Early Childhood. #PlayMatters
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Jacob Merrill @islesofwhatif.bsky.social · 08/02/2025
I do like that my cats follow me everywhere, but when you discover the ultimate spot for hide and seek and the cat leads the children straight to you, it feels a little unfair. Perhaps I'm taking the game too seriously.
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Dr Helen J Williams 🇪🇺🇵🇸 @helenjwc.bsky.social · 29/01/2025
**HERE is our new Early Childhood Maths Home page: we hope things are easier to find & you enjoy furkelling! earlymaths.org
earlymaths.org
ECMG
Early Childhood Maths Group
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Michael Freeman @afreeparticle.com · 29/01/2025
Never too early for Which One Doesn’t Belong ♾️ #WODB
Photo of the back of my 6 month old on her belly looking at 4 high contrast black and white cards with different designs on them.
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Jacob Merrill @islesofwhatif.bsky.social · 29/01/2025
Residential done for another year. Wind, rain, sleepless nights, exhaustion, but still worth it. More important than ever for children to experience sights beyond the classroom. Especially when they look like this.
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Dr Helen J Williams 🇪🇺🇵🇸 @helenjwc.bsky.social · 27/01/2025
Our new piece on these @atmmathematics.bsky.social KS1 assessment tasks in @tesmagazine.bsky.social @accomplishedu.bsky.social www.tes.com/magazine/tea...
tes.com
Why games beat tests for primary maths assessment
The end of the Sats requirement in key stage 1 opens up a world of opportunities for more engaging ways to assess pupils, say these experts
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NRICH maths @nrichmaths.bsky.social · 21/01/2025
Hello Bluesky, we're NRICH! We offer FREE curriculum-linked resources for students aged 3-18, designed to nurture curious, resourceful and confident learners of school mathematics. We can't wait to get involved and talk all things maths with you 😀
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 16/01/2025
The chair of ATM’s General Council, Helen Madeley has written an update on the ‘five into one’ mathematics classroom facing association development. atm.org.uk/News/update-...
atm.org.uk
Update on the future of ATM
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Richard Perring @learningmaths.bsky.social · 14/01/2025
So… on a number line like this I know you could mark the number 0.5 and you could mark where the number ½ is, but where would you mark 50%? Or does 50% not fit on a number line?
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Dr Helen J Williams 🇪🇺🇵🇸 @helenjwc.bsky.social · 08/01/2025
**Coming soon** New website on early maths from earlymaths.org AND easy and appropriate research informed assessment indicators for spatial reasoning ChIPs. Take a look at our number and pattern ones👇🏼
earlymaths.org
ECMG
Early Childhood Maths Group
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Jacob Merrill @islesofwhatif.bsky.social · 08/01/2025
Product Paths Create a path in a 3×3 grid (1-9). Split it into groups of 3 digits. Each group makes TO×O or OxTO multiplication. Score a point for each hundred in the products. Products must increase along path. How many possible points? #primarymaths #ukmathschat islesofwhatif.com/2025/01/08/p...
islesofwhatif.com
Product Paths - The Mathematical Isles of What If...?
Create a path in a 3×3 grid (1-9). Split path into groups of 3 digits. Each group makes TO×O multiplication. Products must increase along path.
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Jacob Merrill @islesofwhatif.bsky.social · 22/12/2024
The difficulty at this time of year with three young children is working out where presents have been hastily hidden... Any ideas appreciated!
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CODE Maths Hub @codemathshub.bsky.social · 16/12/2024
We know that 2024 isn't QUITE over yet but our friends over at the Association of Teachers of Mathematics have their first of their 2025 Micro CPD sessions planned on 14 January and it's sure to be good! Follow the QR code or visit the ATM website to find out more.
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Francis Su @mathyawp.bsky.social · 13/12/2024
Mathematics for Human Flourishing is now in Turkish! yayinlar.tubitak.gov.tr/ana-sayfa/14... And if you're looking for other languages that it's appeared in--Spanish, Chinese (simplified and traditional), Romanian, Italian, Japanese, Korean--here are links: docs.google.com/document/d/1...
cover of book in Turkish
table of contents in Turkish
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 13/12/2024
The Social Justice special issue of ATM’s Mathematics Teaching Journal is now available online and has been made ‘open access’ to all, so please do share with colleagues. It includes articles by Alf Coles, Pete Wright, Rose Griffiths and many more. atm.org.uk/write/MediaU...
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Peter Brown! @peterbrownstudio.com · 11/12/2024
Sorry, but I really hope people who love THE WILD ROBOT movie know it was inspired by my book. It's mentioned in the credits but most people don't read that stuff. If you love the movie you should check out the book! There's more to the story and it's a quick read.
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Richard Perring @learningmaths.bsky.social · 10/12/2024
Your “what if” prompt reminded me of @islesofwhatif.bsky.social website. It’s KS2 content but such lovely tasks, like this one… islesofwhatif.com/2023/10/28/3...
islesofwhatif.com
3-2-1 Totals -
A triangular grid contains the numbers one, two and three. Combine them into regions with unique totals. What is the lowest possible value of the region with the highest total?
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Jacob Merrill @islesofwhatif.bsky.social · 08/12/2024
With the very wet weekend, started working on my micro cpd session on January 14th - Embracing Purposeful Meanderings Who wouldn't want to spend a Tuesday evening in Jan doing and discussing maths? @atmmathematics.bsky.social atm.org.uk/Micro-CPD-Se... #Maths #EduSky #UKMathsChat #PrimaryMaths
Embracing Purposeful Meanderings
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Simon Smith @smithsmm.bsky.social · 07/12/2024
No 7 in my #FavePicturebooks24 is… “The Last Zookeeper” by @storybreathing. The visual storytelling in this book is utterly extraordinary, it’s rich in pathos and emotion without a single word. A modern day Noah’s Ark. A Magical #WordlessWonder. #PicturebookPage
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Jacob Merrill @islesofwhatif.bsky.social · 27/11/2024
Did an assembly on maths to Y4-6 Introduced a challenge. Lovely how many chn (and teachers!) then came to me with their own attempts Fold an A4 piece of paper four times. How many sides can be constructed from the folded shape? We outlined the perimeter each fold for reproducibility #PrimaryMaths
With four folds of an A4 piece of paper, how many sides can be constructed from the folded shape?
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Alison Kiddle @alisonkiddle.bsky.social · 25/11/2024
How would you answer a child's question "What does a mathematician do?" I think I'd start by saying that we notice patterns and try to explain them, but I'd love to hear other answers!
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@DawnEwan5 @dawnewan5.bsky.social · 24/11/2024
Mark making is so much more than pen on paper...
A shadow of a person in the snow.The shadow of fencing in the snow with animal prints in the foreground. Dog prints in the snow. Footprints in the snow
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Jacob Merrill @islesofwhatif.bsky.social · 24/11/2024
I'm sure there are many very clever uses of ai but in my family, what matters is our 'plonker status'. It asks one question about each of us each day. Then it decides on our status based on the answers. I'm clearly still facing the impact of past mishaps today...
Jacob's plonker status: plonker
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Richard Perring @learningmaths.bsky.social · 17/11/2024
If you’ve got some stats coming up with KS2 or KS3 then I think it’s well worth taking a look at slowrevealgraphs.com.
slowrevealgraphs.com
- Slow Reveal Graphs
Slow Reveal Graph is an instructional routine that promotes sensemaking about data. This highly engaging routine uses scaffolded visuals and discourse to help students (in K-12 and beyond) make sense ...
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 16/11/2024
“Without meaning, relying on memorising makes a huge demand on executive function skills and steers learners away from mathematical thinking.” Read this article from our latest journal for free: atm.org.uk/write/MediaU...
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Dr Helen J Williams 🇪🇺🇵🇸 @helenjwc.bsky.social · 15/11/2024
AND **HERE IT IS!** mixed-age.earlymaths.org
mixed-age.earlymaths.org
Mixed year-group mathematics teaching – Mixed Age
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Pip - Accomplish Education @accomplishedu.bsky.social · 21/10/2024
KS1 Assessment Tasks NOT Tests. If you haven’t seen these yet do take a look - Free and with great reviews. atm.org.uk/KS1-Assessme...
atm.org.uk
KS1 Assessment Tasks
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Sue Cowley @suecowley.bsky.social · 19/10/2024
There needs to be time for children to #play alongside all the drive for 'high and rising standards'. It's not wrong to spend time exploring and discovering, especially in early years and primary. Not everything has to meet a standard or transfer specific knowledge. 😊 #EYFS #edusky
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 17/10/2024
The latest Mathematics Teaching Journal MT293 is now available to view online. There are 2 open articles that everyone can read. atm.org.uk/Mathematics-...
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Jacob Merrill @islesofwhatif.bsky.social · 17/10/2024
Sum it Up 40th task on the website 🎉 Place numbers on a 10x10 grid so that they are: No greater than 1 more than any existing number The sum of all numbers equal or lower than it in neighbouring cells How high can you go? #ukmathschat #primarymaths #primaryedusky islesofwhatif.com/2024/10/17/s...
islesofwhatif.com
Sum it Up - The Mathematical Isles of What If...?
With a 10x10 grid, numbers can be placed in the grid so that they are the sum of all numbers equal or lower than those surrounding it and at most, one higher than the existing highest number. How high...
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 01/10/2024
The Joint Primary Group of the ATM and MA are pleased to launch ‘KS1 Assessment Tasks – Tasks not Tests’. a collaboration between mathematics educators and are freely available by all to access. @Mathematical_A atm.org.uk/News/ks1-tas...
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 26/09/2024
CPD Event - 1 week until ATM Virtual Conference on Zoom. There are lots of high quality CPD sessions including one by Jacob Merrill shown below, but you could opt to hear Lucy Rycroft-Smith, Fran Watson, Jonny Griffiths or other excellent speakers bit.ly/3KXTaYJ #MathsTeachers #UKMathsChat
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Association of Teachers of Mathematics @atmmathematics.bsky.social · 24/09/2024
A lovely example of a ‘free to read’ article from Mathematics Teaching #EduSky #UKMathsChat
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