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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!

Ukážkové ciele vzdelávania

  • 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.2
Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
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.
Verzia 1.02

Teacher-Submitted Activities

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 Matematika
Fractions 3 Day Unit A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson K-5 Guided Matematika
Working with Fractions A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Deborah Gaff K-5 Lab
Alignment of PhET sims with NGSS This contribution was designed by PhET. Trish Loeblein Iné Chémia
Veda o Zemi
Fyzika
Biológia
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein ZŠ-II Iné Veda o Zemi
Fyzika
Biológia
Chémia
MS and HS TEK to Sim Alignment Elyse Zimmer
ZŠ-II
Iné Fyzika
Biológia
Chémia
분수 만들기 SIM 사용설명서 이화국(Wha Kuk Lee) K-5 Demo
Matematika
Kesirler - 3 Derslik Öğrenci Çalışması Sebnem Atabas (Translated from Fraction Unit Student Sheet by Meaghan Hixson) ZŠ-II Guided Matematika
Building Fractions Nicole Scicutella K-5
ZŠ-II

Guided
Matematika
Back to the Basics Nyetta Abernathy
K-5
ZŠ-II
Lab
Matematika
Teacher Michele Immediato K-5 Lab Matematika
Building Fractions Jillian Gutman K-5
ZŠ-II
Otaz
Lab

Jazyk Stiahnuť alebo spustiť Tips
Afrikánčina All Afrikaans Download Run now Bou 'n Breuk
Albánčina All shqip Download Run now Ndërto një thyesë
Angličtina All English Download Run now Build a Fraction
Arabčina (Saudská Arábia) All العربية (السعودية) Download Run now بناء كسر
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Čínština (Tradičná) All 中文 (台灣) Download Run now 建立一個分數
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Francúzština All français Download Run now Créer des fractions
Gréčtina All Ελληνικά Download Run now Δημιουργία κλάσματος
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Autorský tím Iné knižnice Poďakovanie
  • Ariel Paul (lead designer)
  • Sam Reid (lead developer)
  • Kathy Perkins
  • Trish Loeblein
  • Karina Hensberry
  • Mike Dubson
  • Piccolo2D
  • Lombok
  • Functional Java
  • Kim Bunning
  • AAA Lab at Stanford (http://aaalab.stanford.edu)