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Tierney Kennedy

@tierneykennedy.bsky.social
637 followers 507 following 203 posts

Maths lover, teacher, author and consultant. Specialist in misconceptions. #iteachmath Back to front maths. Jigsaw puzzle enthusiast. She/her.

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Tierney Kennedy @tierneykennedy.bsky.social · 14/03/2025
Happy pi day! My tshirt today was of octopi. :) #mtbos
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Tierney Kennedy @tierneykennedy.bsky.social · 14/03/2025
Woo hoo! Standardised testing results from a high school I work with just did this! #iteachmaths
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Tierney Kennedy @tierneykennedy.bsky.social · 24/02/2025
Interesting lights array in the lift at my hotel. How do you count them? #iteachmaths
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Tierney Kennedy @tierneykennedy.bsky.social · 05/02/2025
Fun playing maths with kids in Doomadgee! I taught 5 classes and ran through some simple diagnostics. #iteachmath
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Tierney Kennedy @tierneykennedy.bsky.social · 05/02/2025
Playing with multiplicative patterns and creating algorithms. Article with a couple of lessons to use too. #iteachmath www.backtofrontmaths.com.au/playing-with...
backtofrontmaths.com.au
Playing with multiplicative patterns and algorithms - Back-to-Front Maths | Kennedy Press
Developing algorithms is an important area in AC9, and one that is new to many teachers.But what does it mean for us and what tasks might be good for kids?  […]
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Tierney Kennedy @tierneykennedy.bsky.social · 03/02/2025
#iteachmath Reposting this collection of photos now that more people are here.
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Tierney Kennedy @tierneykennedy.bsky.social · 15/01/2025
Woot woot - new book fresh from the printers ready to use at projects this year!
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Tierney Kennedy @tierneykennedy.bsky.social · 04/01/2025
I posted this a while back but thought they might be useful now that we have more #iteachmath people here.
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Hana Murray @murrayh83.bsky.social · 02/01/2025
Snowflake designs! #21CenturyPB #CuisenaireRods #iTeachMath
The main image shows a snowflake design created by combining 21st Century Pattern Blocks with Cuisenaire rods. The images are arranged in a 3 by 3 grid, with the top-left four squares merged to showcase the completed snowflake. The bottom and right-side images show the progression of the design.
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Esther @mrsmathematica.bsky.social · 02/01/2025
Made a thing! #MathsChat #HappyNewYear #SquareNumbers
Simple poster explaining that 2025 is equal to 45 squared. Includes firework images and a square made of 2025 smaller sqaures arranged into 45 rows of 45 squares
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Tierney Kennedy @tierneykennedy.bsky.social · 03/01/2025
27 homework tasks to help make maths part of everyday life. :) #iteachmath www.backtofrontmaths.com.au/homework-tas...
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Tierney Kennedy @tierneykennedy.bsky.social · 22/12/2024
Puzzle swap day!! Woot woot.
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Tierney Kennedy @tierneykennedy.bsky.social · 20/12/2024
6^3 in the wild! #iteachmath
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Tierney Kennedy @tierneykennedy.bsky.social · 04/12/2024
For those of you who are interested, here are the results of each back to front maths project from 2024. I’m not on X anymore. Thanks to all the schools involved - you have rocked it! More in the comments. #iteachmath @gregashman.bsky.social thought you might be interested, it’s ok if not though.
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Tierney Kennedy @tierneykennedy.bsky.social · 17/11/2024
8^3 in the wild :) I like that in WA these squares are 8x8 but in other places in Australia they are usually 6x6. What do they look like where you are? #iteachmath
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Tierney Kennedy @tierneykennedy.bsky.social · 16/11/2024
#iteachmath How many items?
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Tierney Kennedy @tierneykennedy.bsky.social · 15/11/2024
#iteachmath
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Amie Albrecht @nomadpenguin.bsky.social · 12/11/2024
NEW Blog Post: ‘Moving from "OR" to "AND”’ Could a simple shift in language challenge the false dichotomies that constrain mathematics education? amiealbrecht.com/2024/11/13/m...
amiealbrecht.com
Moving from “OR” to “AND”
Could a simple shift in language challenge the false dichotomies that constrain mathematics education?
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Tierney Kennedy @tierneykennedy.bsky.social · 15/11/2024
Fun ideas for graphing #iteachmath
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Tierney Kennedy @tierneykennedy.bsky.social · 15/11/2024
Still one of my favourite questions ever to play with a group of kids. #iteachmath
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Tierney Kennedy @tierneykennedy.bsky.social · 22/09/2023
I make maths questions to go with pictures. Here is my collection from twitter. I’d love you to share yours too! #iteachmath
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David Flynn @dpfl.bsky.social · 15/11/2024
I’ve had a lot of conversations recently about how to keep geometry interesting in 3rd grade. I’m super excited for students to try these Right Angle Mazes. Trace a path from the start to finish using only right angle turns. #ITeachMath #ElemMathChat #edusky
A maze-style diagram with right angle turns.
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Tierney Kennedy @tierneykennedy.bsky.social · 15/11/2024
Creating an extension box for maths - here are a few ideas that might help. #iteachmath www.backtofrontmaths.com.au/creating-an-...
backtofrontmaths.com.au
Creating an extension box - Back-to-Front Maths | Kennedy Press
Extension can be a tricky issue to deal with. While we can try to have extension questions for most in-class tasks, at some point we may find this hard or […]
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Tierney Kennedy @tierneykennedy.bsky.social · 20/04/2024
Great ideas for enabling prompts in maths. #iteachmath #mtbos www.backtofrontmaths.com.au/great-ideas-...
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Heulwen @skymazef3.bsky.social · 20/04/2024
#SignedMath showing, demonstrating, signing, voicing about complementary angles. So, our non readers, our signers, our HoH, many students have other ways to access the information. (should have made the signing bigger tho) www.youtube.com/watch?v=JaSc...
youtube.com
Auslan Complementary angles, what are they? #Angles Signed Math
Auslan, captions, demonstrations and voice dub Compliments to Visnos.com for their amazing demo models. My work is purely for education2 minutes 17 seconds i...
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Pat-HEX-myth (love, with a routing number) @patri.xyz · 02/04/2024
As an engineer, I urge you to provide formulas. We actively discourage people from relying on memory to do important calculations. That's how you send complex systems into disarray because of tiny avoidable errors where someone just wanted to seem all knowing.
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David K Butler @davidkbutler.bsky.social · 28/02/2024
I think one of the issues with the teaching of something like drug calculations is that experts think it’s just “simple arithmetic” but don’t realise they are actually using multiple different strategies flexibly even in a simple problem.
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Tierney Kennedy @tierneykennedy.bsky.social · 25/02/2024
Make ten is a really fun, cooperative card game. It is played like go-fish, but open handed. You ask for a card from someone else that would add or subtract with one or more of your own cards to make ten. Awesome for different abilities. #iteachmath www.backtofrontmaths.com.au/make-ten-a-c...
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Tierney Kennedy @tierneykennedy.bsky.social · 17/02/2024
Here are some important fractions ideas and questions to ask kids. Here is a free diagnostic test to try: www.backtofrontmaths.com.au/wp-content/u... Here is the book all of the above is from: www.backtofrontmaths.com.au/product/fixi... #iteachmath
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David Coffey, PHD @deltadc.bsky.social · 29/01/2024
#ComplexInstruction quadrilateral hierarchy task #MTH126 #iteachmath
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Tierney Kennedy @tierneykennedy.bsky.social · 28/01/2024
What if we thought of misconceptions a bit like conspiracy theories? Here’s my new article on what that means, why kids forget, and what to do about it. #iteachmath www.backtofrontmaths.com.au/conspiracyth...
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David K Butler @davidkbutler.bsky.social · 28/01/2024
The podcast episode I’m on has been released! I talk about joy and play and games and maths. I had a great time recording it and I hope it will be meaningful to anyone who listens. You can find it on Spotify: open.spotify.com/episode/1fcS... and on their website: www.mathsplay.org/podcasts/fou...
open.spotify.com
Episode 1: Playful and joyful maths with Dr David Butler
Listen to this episode from Four Sevens on Spotify. Listen on the Maths Play site, Spotify or Youtube. Dr David Butler is, among many things, a mathematician and lecturer at the University of Adelaide...
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Karen Campe @karencampe.bsky.social · 26/01/2024
It's almost the end of January! Check out the #ProblemSolving calendar for your students (or just for fun)! Solutions and February Calendar of Problems coming next week! #MTBoS #iTeachMath #MathSky karendcampe.wordpress.com/2024/01/01/j...
karendcampe.wordpress.com
January Calendar Problems
2024 is here! Happy new problem-solving year! We've got a leap year* and a "difference of 2 squares" year**, so there's definitely plenty of math fun to go around. Here is the January 1999 Calendar of...
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Tierney Kennedy @tierneykennedy.bsky.social · 28/01/2024
Hey #MtBos crowd - who are your favourite maths people to follow here? #iteachmath
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Stephanie Burgis @stephanieburgis.bsky.social · 27/01/2024
I am begging my Bluesky friends not to respond to trolls, because the platform's setup means that every time you do, that troll's inciting, offensive statement ends up on the timelines of all your friends and taints everybody's day! I really want to see YOUR thoughts, not theirs.
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Science Journal for Kids & Teens @sj4k.bsky.social · 22/01/2024
Have you ever heard of dark energy? You can think of it like the opposite of gravity, and it’s causing our universe to expand. Scientists at the University of Cambridge wanted to study the effect of dark energy on the Andromeda Galaxy. Learn more: www.sciencejournalforkids.org/articles/how...
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Tierney Kennedy @tierneykennedy.bsky.social · 20/01/2024
Had so much fun in Dalby today! Playing with developmental sequencing for number concepts.
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Tierney Kennedy @tierneykennedy.bsky.social · 19/01/2024
#iteachmath
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Melynee Naegele @mnmmath.bsky.social · 19/01/2024
From Janaki Nagarajan @janaki_aleena Q1 #ElemMathChat #MTBoS #ITeachMath
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Tierney Kennedy @tierneykennedy.bsky.social · 18/01/2024
What’s the perimeter? I wrote this for year 8s after teaching Pythagoras. I sketched the kite, then added the line across the middle and said “that’s 12 long”. I drew a circle with 15 in the top triangle and said, “this area is 15”, and repeated with 48 for the bottom. They had a ball! #iteachmath
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Melynee Naegele @mnmmath.bsky.social · 13/01/2024
This weeks #ElemMathChat I am going to try to run the chat simultaneously on deck.blue It is a lot! But the long game for me is to leave Twitter! #MTBoS #ITeachMath x.com/mnmmath/stat...
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Melynee Naegele @mnmmath.bsky.social · 12/01/2024
Q4: The students paired and decided on the following estimates for the paw prints! What questions would you ask while the students worked? #elemmathchat #MTBoS #ITeachMath
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Melynee Naegele @mnmmath.bsky.social · 12/01/2024
Q1: Join me tonight recognizing the strengths and brilliance of second graders. Today, I co-taught a lesson with a first-year teacher. We showed the students a giant Clifford the Dog paw print and the footprint of a teeny tiny woman. What do you Notice and Wonder? #ElemMathChat #MTBoS #ITeachMath
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Hana Murray @murrayh83.bsky.social · 08/01/2024
Pattern block play! Koch snowflake created with #21CenturyPB. #iTeachMath
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Duane Habecker @duanehabecker.com · 31/12/2023
#RecreationalMath
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Duane Habecker @duanehabecker.com · 18/12/2023
Students using dots to understand the long division algorithm. #iTeachMath
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Tierney Kennedy @tierneykennedy.bsky.social · 12/12/2023
Crafternoon! Found Fimo-like oven bake clay at spotlight for about a quarter of the normal price. Many ornaments now cooked!
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Tierney Kennedy @tierneykennedy.bsky.social · 11/12/2023
Crafternoon! Tied strips of fabric around a hoop and added a few baubles and a bow. :)
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Mark Chubb @markchubb.bsky.social · 08/12/2023
Which pentomino pieces have cover up spaces with a mean value of 35? Will each piece work? #iteachmath
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Tierney Kennedy @tierneykennedy.bsky.social · 26/11/2023
It’s the time of the year where I do some Christmas craft with my kids. :) Origami lotus flower worked out ok.
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