Build a Fraction

Build a Fraction Screenshot
  • Fractions
  • Equivalent Fractions
  • Mixed Numbers
Java Logo Original Sim and Translations

Topics

  • Fractions
  • Equivalent Fractions
  • Mixed Numbers

Description

Build fractions from shapes and numbers to earn stars in this fractions game or explore in the Fractions Lab. Challenge yourself on any level you like. Try to collect lots of stars!

Sample Learning Goals

  • Build equivalent fractions using numbers and pictures
  • Compare fractions using numbers and patterns
  • Recognize equivalent simplified and unsimplified fractions
  • Note: Build A Fraction expands on ideas from the Fraction Intro and Fraction Matcher sims or can be used as a stand-alone tool

Standards Alignment

Common Core - Math

1.G.A.3
Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.
2.G.A.3
Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.
3.G.A.2
Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape.
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.
Version 1.0.12

Teacher Tips

Download teacher tips PDF Overview of sim controls, model simplifications, and insights into student thinking ( PDF ).

Teacher-Submitted Activities

Games Remote Lesson ideas A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein MS
HS
K-5
UG-Intro
HW
Remote
Mathematics
Chemistry
Physics
Equivalent Fractions Day 3 of 3 A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson K-5 Guided Mathematics
Fractions 3 Day Unit A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson K-5 Guided Mathematics
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein MS Other Chemistry
Earth Science
Biology
Physics
분수 만들기 SIM 사용설명서 이화국(Wha Kuk Lee) K-5 Demo
HW
Mathematics
Kesirler - 3 Derslik Öğrenci Çalışması Sebnem Atabas (Translated from Fraction Unit Student Sheet by Meaghan Hixson) MS Guided Mathematics
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) This contribution was designed by PhET. Diana López MS
HS
Other Chemistry
Biology
Physics
Mathematics
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) This contribution was designed by PhET. Diana López MS
K-5
Discuss
Demo
HW
Guided
Lab
Astronomy
Mathematics
Chemistry
Physics

Language Download or Run Tips
Albanian All shqip Run now Ndërto një thyesë
Basque All Euskara Run now Eraiki zatiki bat
Bosnian All Bosanski Run now Napravi razlomak
Chinese (Simplified) All 中文 (中国) Run now 构建一个分数
Chinese (Traditional) All 中文 (台灣) Run now Build a Fraction_建立一個分數
Croatian All hrvatski Run now Napravi razlomak
Danish All Dansk Run now Byg en brøk
Dutch All Nederlands Run now Maak een breuk
French All français Run now Construire une fraction
German All Deutsch Run now Brüche bilden
Greek All Ελληνικά Run now Φτιάξε ένα κλάσμα
Gujarati All Gujarati Run now અપૂર્ણાંક બનાવો -Pankajsid34
Hungarian All magyar Run now Törtépítő
Italian All italiano Run now Costruisci una frazione
Japanese All 日本語 Run now 分数の計算
Kazakh All Kazakh Run now Бөлшек түрінде жаз
Korean All 한국어 Run now 분수 만들기
Latvian All Latviešu Run now Daļskaitļu veidošana
Mongolian All Монгол (Монгол) Run now Бутархайг Бүтээх
Persian All فارسی Run now کسر بساز
Polish All polski Run now Zbuduj ułamek
Portuguese (Brazil) All português (Brasil) Run now Construir uma Fração
Russian All русский Run now Запиши в виде дроби
Serbian All Српски Run now Направи разломак
Sinhalese All Sinhalese Run now භාගයක් සාදන්න
Slovak All Slovenčina Run now Tvorba zlomkov
Spanish All español Run now Construye una fracción Download teacher tips PDF
Spanish (Peru) All español (Perú) Run now Haz una Fracción
Swedish All svenska Run now Bygg ett bråk!
Tamil All Tamil Run now பின்னத்தை உருவாக்கல்
Turkish All Türkçe Run now Kesir Oluştur
Ukrainian All українська Run now Будуємо дроби Download teacher tips PDF
Vietnamese All Tiếng Việt Run now Tạo ra một Phân số

HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.

iPad:
iOS 12+ Safari
iPad compatible sims

Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.

Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims

Windows Systems:
Microsoft Edge, latest version of Firefox, latest version of Google Chrome.

Macintosh Systems:
macOS 10.9.5+, Safari 9+, latest version of Chrome.

Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.

Design Team Third-party Libraries Thanks To
  • Ariel Paul (lead designer)
  • Jonathan Olson (lead developer)
  • Sam Reid (original developer)
  • Martin Veillette (developer)
  • Michael Dubson
  • Karina K. R. Hensberry
  • Trish Loeblein
  • Amanda McGarry
  • Kathy Perkins
  • almond-0.2.9.js
  • base64-js-1.2.0.js
  • FileSaver-b8054a2.js
  • font-awesome-4.5.0
  • game-up-camera-1.0.0.js
  • he-1.1.1.js
  • himalaya-0.2.7.js
  • jama-1.0.2
  • jquery-2.1.0.js
  • lodash-4.17.4.js
  • pegjs-0.7.0.js
  • seedrandom-2.4.2.js
  • text-2.0.12.js
  • TextEncoderLite-3c9f6f0.js