Fractions: Intro

This simulation has not been translated into this language. You can still access the English version below.

Fractions: Intro وێنه‌ی شاشه‌  دابه‌زێن  Embed
  • Fractions
  • Equivalent Fractions
  • Improper Fraction
Java Logo Original Sim and Translations

ناوه‌ڕۆک

  • Fractions
  • Equivalent Fractions
  • Improper Fraction
  • Number Line

Description

Explore fractions while you help yourself to 1/3 of a chocolate cake and wash it down with 1/2 a glass of water! Create your own fractions using fun interactive objects. Match shapes and numbers to earn stars in the fractions game. Challenge yourself on any level you like. Try to collect lots of stars!

Sample Learning Goals

  • Predict and explain how changing the numerator of a fraction affects the fraction's value
  • Predict and explain how changing the denominator of a fraction affects the fraction's value
  • Convert between a picture of a fraction, a numeric fraction, and a point on a number line
  • Build matching fractions using numbers and pictures
  • Compare fractions using numbers and patterns

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.
3.NF.A.2
Understand a fraction as a number on the number line; represent fractions on a number line diagram.
3.NF.A.2a
Represent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Recognize that each part has size 1/b and that the endpoint of the part based at 0 locates the number 1/b on the number line.
3.NF.A.2b
Represent a fraction a/b on a number line diagram by marking off a lengths 1/b from 0. Recognize that the resulting interval has size a/b and that its endpoint locates the number a/b on the number line.
Version 1.0.9

Teacher Tips

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

Teacher-Submitted Activities

What is a Fraction? A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Anonymous K-5 دیکه‌ بیرکاری
Comparing and Ordering Fractins Day 2 of 3 A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson K-5 Guided بیرکاری
What is a Fraction? Day 1 of 3 A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson K-5 Guided بیرکاری
Building Fraction Sense Using “Fractions Intro PhET Simulation” A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Philippe Guegan K-5
MS
Discuss
Guided
بیرکاری
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 بیرکاری
Fractions 3 Day Unit A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson K-5 Guided بیرکاری
Alignment of PhET sims with NGSS This contribution was designed by PhET. Trish Loeblein HS دیکه‌ کیمیا
زانستی زه‌وی
فیزیا
ژیناسی
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein MS دیکه‌ ژیناسی
کیمیا
زانستی زه‌وی
فیزیا
Naming Fractions Bettie Parker K-5 Demo
HW
Discuss
تاقیگه‌
Guided
بیرکاری
분수 소개 SIM 사용설명서 이화국(Wha Kuk Lee) MS Demo
HW
بیرکاری

زوان Download or Run Tips
Basque All Euskara Download Run now Zatiketak: sarrera
Bosnian All Bosanski Download Run now Razlomci: Uvod
Brazilian Portuguese All português (Brasil) Download Run now Frações: Intro
Chinese - Simplified All 中文 (中国) Download Run now 分数:入门
Chinese - Traditional All 中文 (台灣) Download Run now Fractions: Intro_分數的介紹
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Dutch All Nederlands Download Run now Breuken: inleiding
French All français Download Run now Fractions: Intro
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Norwegian Nynorsk All Norwegian Nynorsk Download Run now Brøk
Polish All polski Download Run now Ułamki: wstęp
Russian All русский Download Run now Дроби: Введение
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Spanish All español Download Run now Fracciones: introducción
Spanish (Mexico) All español (México) Download Run now Fracciones: Introducción
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Vietnamese All Tiếng Việt Download Run now Phân số: phần giới thiệu

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

iPad:
iOS 11+ 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 and Internet Explorer 11, 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 سوپاس بۆ
  • Ariel Paul (lead designer)
  • Jonathan Olson (lead developer)
  • Sam Reid (original developer)
  • Martin Veillette (developer)
  • Michael Dubson
  • Trish Loeblein
  • Amanda McGarry
  • Kathy Perkins
  • Vincent Davis
  • Michael Moorer
  • Dusty Cole
  • almond-0.2.9.js
  • base64-js-1.2.0.js
  • easing-equations-r12
  • 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
  • Tween-r12.js