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Fractions: Intro

Denne simuleringen har ikke blitt oversatt til dette språket. Du kan allikevel starte den engelske versjonen nedenfor.

Fractions: Intro Skjermbilde Last ned Innbygging
  • Brøker
  • Ekvivalente brøker
  • Uekte brøk
Java Logo Original simulering og oversettelser

Innhold

  • Brøker
  • Ekvivalente brøker
  • Uekte brøk
  • Tallinje

Beskrivelse

Utforsk brøker mens du forsyner deg med 1/3 sjokoladekake og skyller den ned med 1/2 glass appelsinjuice. Lag dine egne brøker med morsomme interaktive objekter. Koble sammen figurer og tall for å vinne stjerner i brøkspillet. Utfordre seg selv på det vanskelighetsnivået du ønsker. Prøv å samle mange stjerner!

Eksempel på læringsmål

  • Forutsi og forklar hvordan det å forandre telleren i en brøk påvirker brøkens verdi. Forutsi og forklar hvordan det å endre nevneren i en brøk påvirker brøkens verdi.
  • Gjør om fra et bilde av en brøk til en brøk med tall, og til et punkt på en tallinje.
  • Finn samsvarende brøker ved å bruke tall og bilder.
  • Lag likeverdige brøker ved hjelp av forskjellige tall.
  • Finn samsvarende brøker uttrykt ved forskjellige bilder.
  • Sammenlign brøker uttrykt med tall og mønster.

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.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.
Versjon 1.0.3

Lærertips

Last ned lærertips PDF Oversikt over sim-kontroller, modellforenklinger, og innsikt i elevenes tenkning ( PDF ).

Aktiviteter sendt inn av lærere

Tittel Gold Star Contribution Contribution by PhET Bidragsytere Nivå Type Subject
What is a Fraction? A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Dette bidraget ble designet av PhET. Anonymous Barneskole Annet Matematikk
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 Barneskole Guided Matematikk
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 Barneskole Guided Matematikk
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 Ungdomsskole
Barneskole		 Discuss
Guided		 Matematikk
Equivalent Fractions Day 3 of 3 A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson Barneskole Guided Matematikk
Fractions 3 Day Unit A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson Barneskole Guided Matematikk
Alignment of PhET sims with NGSS Dette bidraget ble designet av PhET. Trish Loeblein vgs Annet Geofag
Kjemi
Fysikk
Biologi
How do PhET simulations fit in my middle school program? Dette bidraget ble designet av PhET. Sarah Borenstein Ungdomsskole Annet Kjemi
Geofag
Biologi
Fysikk
Naming Fractions Bettie Parker Barneskole Demo
Guided
Lekse
Lab
Discuss		 Matematikk
분수 소개 SIM 사용설명서 이화국(Wha Kuk Lee) Ungdomsskole Demo
Lekse		 Matematikk

Bla i flere aktiviteter.

Del en aktivitet!

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 Firefox, latest version of Chrome.

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

Designteam Tredjepartsbiblioteker Takk til
  • 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
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