Slice Fractions

SliceFractionsIconKids between 5 and 12 slice through ice and lava to clear the mammoth’s path, unraveling the mystery of fractions!

This award-winning, problem-solving game is an incredibly fun way to learn fractions. Thanks to the game’s research-proven effectiveness, kids get a head start at school while having fun with fundamental math concepts. Wow!

Download on the App StoreGet it on Google PlayGet it from Microsoft

Efficacy proven by research

A study conducted by researchers of the University of Quebec at Montréal (UQAM) demonstrated that the mobile game Slice Fractions significantly improved students’ performance in a very short amount of time.

Three hours of gameplay in class were sufficient to allow our young subjects to achieve a similar level of performance to students a year older in the United States. The learning improvement therefore happens in record time when compared to regular classroom teaching during a whole year. This gives children an incredible head start!

3 minutes summary video

  • Best of 2014 — App Store, Apple!
  • Apple Editor’s Choice — App Store, Apple
  • Best Original Digital Content 2015 — Youth Media Alliance
  • Best New Interactive Media 2015 — Numix
  • Best Family Friendly Game 2014 — Indie Prize Showcase Awards
  • Gold Medal Winner 2014 — International Serious Play Awards
  • Editor’s Choice for Excellence in Design — Children’s Technology Review
  • Winner of a Parents’ Choice Gold Award 2014
  • Silver Winner 2014 — National Parenting Publications Awards
  • Best Game Audio Nomination 2014 — Indie Prize Showcase Awards
  • Learn fraction concepts without words
  • Guide an adorable mammoth
  • Collect funky hats
  • Solve innovative physics puzzles
  • Universal app: available on Apple TV

Slice Fractions covers the following concepts:

  • Part-whole partitioning
  • Numerator / Denominator notation
  • Fraction equivalence
  • Fraction ordering
  • Fraction subtraction
  • Common Core State Standards (listed underneath)

Slice Fractions is based on the Common Core State Standards and covers the following concepts:

  • CCSS.Math.Content.2.G.A.2 Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
  • CCSS.Math.Content.2.G.A.3 Partition circles and rectangles into two, three, or four equal shares […]. Recognize that equal shares of identical wholes need not have the same shape.
  • CCSS.Math.Content.3.NF.A.1 Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.
  • CCSS.Math.Content.3.NF.A.3 Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
  • CCSS.Math.Content.4.NF.A.1 Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.
  • CCSS.Math.Content.4.NF.A.2 Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2.[…] Record the results of comparisons with symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.
  • CCSS.Math.Content.4.NF.B.3 Understand a fraction a/b with a > 1 as a sum of fractions 1/b.
  • CCSS.Math.Content.4.NF.B.3.B Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a visual fraction model. Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/8 ; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8.
  • CCSS.Math.Content.4.NF.B.3.C Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

Reading has its own set of challenges and is a common obstacle to learning math. Slice Fractions innovates by not using a single word to teach fractions. It is an intuitive and enjoyable experience for kids.

Ululab takes the educational qualities of its games very seriously. Learning experts at the Université du Québec à Montréal review the game regularly. Our partnership allows us to validate the pedagogical approach during development and to have a third party measure the learning impact of Slice Fractions.


“The animation is top-notch — each character is incredibly adorable.”
Kelly Hodgkins, TUAW
“You’ll be surprised at how cleverly and holistically it teaches fractions.”
“Ululab hits the elusive edutainment sweet spot.”
Lisa Caplan, AppsyMap
“The game is so fun, they won’t realize they are gradually learning about fractions.”
Eric Pramono, Geeks With Juniors
“The app is well-constructed, well-designed, and the execution through the levels is very well considered.”
UKEdChat, ukedchat
“It has mastered teaching kids about fractional math without having overt lessons to do so.”
Nicole Tanner, MacLife
“The math concept introductions and level progressions are so well designed.”
iGameMom, iGameMom
“There’s just a great flow to the entire experience, so that it keeps leading the user forward level by level.”
Trevor Sheridan, AppleNApps
“The animation is first-class– each personality is astonishingly lovable.”
Robert Nardis, iPhone Firmware
“Fantastic for kids who think they can’t do math!”
Fun 2 Tap, Fun 2 Tap


App Store Best Of 2014




Serious Play Award Gold 2014