#fractions — Public Fediverse posts

Math Game Monday: Math Model Rummy

This game builds conceptual understanding of multiplication or fraction models.

Many parents remember struggling to learn math. We hope to provide a better experience for our children. And one of the best ways for children to enjoy learning is through hands-on play.

So what are you waiting for? Let’s play some math!

Math Model Rummy

Math Concepts: multiplication or fraction models.

Players: two or more.

Equipment: one deck of math model cards, or a double deck for four or more players.

Set-Up

You can work with your children to create a deck of math model cards, sketching the pictures on index cards or on a stack of old business cards with blank backs. Each deck should include 10–15 sets, or books. Take your time, making just two or three books each day while talking about real-life situations the models might symbolize. When you think the deck is finished, lay the cards out on the table in sets, to make sure each book has all its members.

Or take the quick route: download my free Multiplication & Fraction Printables file, which includes two decks of premade math model cards. Print the pages on card stock, and laminate for durability if desired.

Your card deck need not include every possible fraction or every math fact in the times tables. But it should offer enough variety to cement the most common multiplication models in your children’s minds. For example, my multiplication card deck includes products from 2×2 to 6×6. Each book consists of four cards — the multiplication equation or fraction, plus three pictures.

How to Play

Deal seven cards per player, and place the remaining cards face down as a draw pile. Turn up the top card of the deck to start the discard pile.

On your turn, you may either draw the top card from the deck or pick up the discard pile as far back as desired. But if you pick up more than the top discard, you have to meld the farthest-back card you take.

After drawing, you may meld — that is, place three or more matching cards face up on the table in front of you. If you have the fourth card in a set that has already been played (by any player), you may also lay that down in front of you.

Finally, put one card on the discard pile to end your turn. But if you discard a card that could have been played, any other player can call “Rummy!” and meld your discard.

If the deck runs out, take all the discards except the top one. Shuffle these cards and place them face down so the next player has a stack to draw from. Play continues until one player runs out of cards (either by laying them all down or by discarding the last one).

Scoring

Count each player’s score as follows:

• Each card played on the table is worth 5 points.
• For every card remaining in the hand, subtract 2 points.
• The player who went out gets a bonus of 15 points.

You may play a single hand, just for fun. Or play several hands, and the first player to reach 300 points wins the game. Or set a different point goal based on how long you want the game to last.

Variations

Floater: You must have a discard to end the game, and this must be a card that could not be melded. If you lay down all your cards without a discard, you become a floater. Continue to play your turn — drawing or picking from the discard pile and melding cards — until you can go out with a proper discard. (But it is illegal to pick up just the top discard and immediately discard it again.)

History

According to the Pagat website, Rummy-style games first appeared in the early twentieth century. Like many card games, Rummy picked up different flavors as it traveled from one player to another over the years. Feel free to modify the rules above to fit your family’s favorite way to play.

 
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💁🏻‍♀️ TIL: 🏀🧮 Researchers at the University of #Copenhagen worked with over 300 Danish students aged 11–13, combining fraction lessons with #basketball drills in weekly hour-long workshops.

Students shot hoops while calculating #fractions and scored 15% higher on tests than peers who didn’t, with a 5% bump in other #math too. Lead researcher Jacob Wienecke says the method opens math up for #kids who don’t usually connect with it, without losing the #fun.

👉 https://www.popsci.com/science/basketball-better-at-math/

#education #denmark #middleschool #learning #science #research #pedagogy #sports

Fantastic Fractions 1 for the TI-99/4A

https://youtu.be/b7QS2A1p5yM?si=YrAzlDtyWquroaZF

#FantasticFractions1 #FantasticFractions #TI994A #Educational #EducationalGame #Edutainment #Mathematics #Math #Maths #Fractions #MathematicsCoursewareSeries #ScottForesmanElectronicPublishing

Hier, visite des #CM2 accompagnés de #6e.

Au programme :

🔹 Présentation des #automatismes, dont la plupart sont dans AutomaTeX
https://lmdbt.forge.apps.education.fr/automatex/

🔹 Un #pixelart → les élèves ont pu choisir le pixel-art qu’ils préféraient.
Les ressources sont disponibles dans LaTeXiothèque :
https://lmdbt.forge.apps.education.fr/latexiotheque/

🔹 Les grilles sont réalisées avec Pixel-it :
https://lmdbt.forge.apps.education.fr/pixel-it/

🔹 Et enfin un petit concours final sur Ma bande unité (binômes 6e-CM2) :
https://lmdbt.forge.apps.education.fr/ma-bande-unite/ #fractions

Les élèves sont repartis avec un diaporama suivi d’un QCM réalisé avec QCM-MD :
https://lmdbt.forge.apps.education.fr/qcm-md/#https://codimd.apps.education.fr/s/273bHW6A_

L'ensemble est libre et disponible sur #LaForge ! 👌 #education

Bonjour à toutes et tous 👋

Un petit pixel-art pour mes #6e (et peut-être mes 5e en révision) autour des #fractions d’un nombre.

🔗https://forge.apps.education.fr/lmdbt/latexiotheque/-/tree/main/PixelArt/Zoey

L’idée : les bandes ont la longueur du dénominateur. Les élèves peuvent donc les « découper » à la règle pour représenter les fractions unitaires, puis prendre le nombre de parts demandé.

Objectif : renforcer le sens de la fraction comme quotient. 😉🤞

PS : Oui, il s’agit bien de #Zoey ! Rumi et Mira sont déjà stock ! 😄

PPS : Il peut toujours subsister quelques coquilles. 🐚

:cc: :ccby: sur la Forge des communs #numériques éducatifs ! 👥

Bonne journée à toutes et tous !

#Cycle3 #TeamMaths #Éducation

Bonjour à toutes et à tous ! 👋

Ça y est ! Le tutoriel de la petite application #MaBandeUnité est disponible ! 🎉

Lien vers cette vidéo → https://tube-sciences-technologies.apps.education.fr/w/3727qc5XqguoFwcripqnHY
Lien vers l'application → https://lmdbt.forge.apps.education.fr/ma-bande-unite/

Cette application permet de construire et manipuler des #fractions à partir d’une bande unité, de les représenter sur un axe gradué et de travailler l’écriture mixte ainsi que les fractions équivalentes. 📏🧮

Un mode défi chronométré est également proposé pour que les élèves s'entraînent de manière ludique. 🎮✏️

Disponible sur #laForge des communs #numériques #éducatifs. 👌

Bonne découverte ! 😉

#Éducation #Numérique #Cycle3 #TeamMaths #TeamPE #6e

Bonjour à toutes et à tous ! 👋

Voici une petite #application sur les #fractions ! 📏🔢

Ma Bande Unité
👉https://lmdbt.forge.apps.education.fr/ma-bande-unite/

Les élèves construisent des fractions à partir d’une bande unité, les placent sur un axe gradué et donnent du sens aux écritures fractionnaires. 👩‍🎓💻👨‍🎓

→ Conforme au nouveau programme de #cycle3 (bande unité, écriture mixte etc.) 👌

Il peuvent s'entraîner d'abord puis, se défier en tentant d'obtenir le meilleur score en 3 minutes ! 👍

En attendant un véritable tutoriel à venir... Voici une petite démonstration vidéo. ⤵️

Clairement inspiré de Fracaweb (https://educajou.forge.apps.education.fr/fracaweb/) d' @arnaudchampollion . 😉

En #MIT sur #LaForge

🧵 1/N

I was struck by this artwork at the Minnesota Museum of American art. It was part of an exhibit called Queering Indigeneity. I noticed the fractions, and pondered what that would have to do with queerness.

Well, being queer could be viewed as being midway between male and female -- one half. But if you go halfway between 0 and 1, why not half way between 0 and 1/2...and so on. That's where all those fractions come in.

But there's more: the fractions are all binary fractions -- the denominators are powers of two. They are all obtained by going halfway between two other fractions.

So what? Well, why just go halfway between? Is queerness limited to halves, quarters, eights, et cetera? Surely not. Surely you can be..nonbinary!

But, notice that the fractions -- the *binary* fractions -- are literally projected onto the person. So on the one hand, the fractions express a form of freedom, namely that you don't need to strictly follow the two basic categories -- male and female, 0 and 1 -- but they also speak to the limitations our culture imposes on queerness. We do live in a world where you can be gay, lesbian, or queer, but that's not enough.

Perhaps you can even push this further: imagine if we included non-binary fractions such as one third, one fifth, and so on. That is, culture gives you that freedom. Even that is not enough, though, because you are still limited to one dimension of variation.

continued...

#fractions #queer #art

[ 🧵 Cousu main ]

Une fiche support/aide pour les élèves au sujet des fractions :

https://classeadeux.fr/fractions-fiche-aide-support-pour-les-eleves/

#TeamPE #ca2 #fractions #maths

Integer continued fractions for complex numbers

https://arxiv.org/abs/2508.15078

#HackerNews #Integer #continued #fractions #complex #numbers #mathematics #research

Prisms Math

** SUBSCRIPTION REQUIRED (US $23.99/year)**

- VR content modules for students to deepen their understanding of core concepts

#Fractions
#Ratios
#Rate_of_Change
#Probability
#Surface_Area

#Algebra
#Geometry
#Advanced Algebra
#ComplexNumbers
#PolarCoordinates
#VectorAddition
#Ellipses
#Matrices

https://www.meta.com/experiences/app/8875714305775804/?utm_source=oculus&utm_medium=share

#maths #fractions 1/8 < min{1/3, 1/7, 1/4, 1/5}
- Doctors (NHS England) : ~1/3 were born overseas (https://www.theguardian.com/society/2024/feb/12/record-one-in-five-nhs-staff-in-england-are-non-uk-nationals-figures-show)
- Builders / construction : ~1/7 (https://www.citb.co.uk/media/nwefbu4r/final-english-migration-report-june-2023.pdf)
- Nurses (NHS England) : ~1/3 (https://www.theguardian.com/society/2024/feb/12/record-one-in-five-nhs-staff-in-england-are-non-uk-nationals-figures-show)
- Transport & storage workers : ~1/4 (https://www.citb.co.uk/media/nwefbu4r/final-english-migration-report-june-2023.pdf)
- University academics : ~1/5 (https://www.hesa.ac.uk/news/28-01-2025/sb270-higher-education-staff-statistics?utm_source=chatgpt.com)
- UK business founders : ~1/3 (https://www.tenentrepreneurs.org/job-creators-2024)

Tidying up i found a sample from the Olivetti Dora (probably an eBay listing). I see that it has thirds as nut fractions. The Brother typewriter i have doesn't have thirds, but has 1/8, 3/8, 5/8, 7/8 instead.

This Pica on the Dora has a closed figure 4, on the Olivetti sample i used in my blog post on Pica https://home.octetfont.com/blog/pica.html the figure 4 is open. The ancillary glyphs show less consistency.

What fractions does your typewriter have? (please boost)

#Typewriter #Pica #Fractions

Build your own fraction, see it come to life! With the "Fractions: Intro" sim, students can explore fractions through diverse representations like cakes and cylinders, all while comparing values to the numerator and denominator. https://phet.colorado.edu/en/simulations/fractions-intro #math #fractions

Assistance request + Mah brain math is broken.

If I have a pdf that printed at 100% gives an output of 1/3 size - how much do I have to reduce the percentage to print the same thing at 1/4 size?

Thankyou in advance.

[No jokes ta, this is a real math question that is causing me headaches .. ]

#Dyscalculia #Math #Fractions #Percentage

A protein folding mystery solved: Study explains core packing fractions

https://phys.org/news/2025-03-protein-mystery-core-fractions.html

#HackerNews #proteinfolding #science #research #corepacking #fractions #mysterysolved

#Day1 of the #30DayChartChallenge, theme: #Fractions

📊🇪🇸 Fracciones de Tenencia de Vivienda (Propiedad vs Alquiler/Otros) por Grupo de Edad en España (2024). Se ven claras diferencias generacionales.

Fuente: INE (Indicadores Calidad de Vida)
Hecho con #rstats #ggplot2

📂 Código: https://t.ly/o0_y8

#dataviz #INE #España #vivienda

Game time! Convert between a picture of a fraction, an improper fraction, and a mixed number.

The Fractions: Mixed Numbers simulation allows students to engage with multiple representations of fractions, including a mixed number. #Fractions #MixedNumbers
https://phet.colorado.edu/en/simulations/fractions-mixed-numbers

Au regard du projet de programme pour la rentrée prochaine.
Cette fiche (ci-dessus) pourra être proposée en #CM1 dès l'année prochaine ! 😲

#TeamPE #Cycle3 #NouveauProgramme #TeamMaths #Education #Fractions

Fractions of Inches - Inkscape Inkdrop

https://friprogramvarusyndikatet.tv/w/cirJzzAGEAB6Ri71h8oaPh

@redsad @tarotspreader the four of pentacles is the same as the eight of tentacles
#fractions

Just for #fun I made some Barcode Clocks for the #M5StackCore
There is a Kix barcode, which is pretty interesting, the Code3x and Barcode39 look about the same, but are still kind of interesting.
But I think the non-barcode Fractions Clock is the most interesting, but I couldn't quite get everything centered on the screen right.... still how it changes is more interesting then seeing lines change.

#Barcode #KixBarcode #Barcode39 #Code3x #Fractions #Math #ESP32 #M5Stack #Arduino

The Third-of-a-Pound Burger flop

"Ah, fractions. Who needs 'em? Not burger devotees. According to Canadian news outlet CBC, the famous McDonald's Quarter Pounder burger once had a larger cousin, the Third-of-a-Pound Burger...."

That's why it's a bad idea to argue online.

https://www.snopes.com/news/2022/06/17/third-pound-burger-fractions/
#math #fractions #doTheMath #EllieKPosts

Let your students engage with and compare multiple representations of #fractions using #numbers and #patterns. Challenge them to predict and explain how changing the denominator of a fraction affects the fraction's value. #Improper #numberLine
https://phet.colorado.edu/sims/html/fractions-intro/latest/fractions-intro_all.html

Today in BoneQuest History for October 26th 2004 "POWERS OF TEN" https://bonequest.com/2189 #bonequest :pants: :deuce: #american #americans #canada #deuce_pants #fractions #government #math #metric #metric_system #metrication #sfw #si #us