Zlomky: Úvod

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  • Zlomky
  • Equivalent Fractions
  • Improper Fraction
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Obsah

  • Zlomky
  • 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!

Příklady učebních cílů

  • 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 1.0.12

Teacher Tips

Učitelská příručka (pdf) obsahuje tipy poskytnuté od členů týmu PhET. ( PDF ).

Teacher-Submitted Activities

Games Remote Lesson ideas A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Trish Loeblein UG-začínající

K-5
ZŠ II.st.
Remote
Matematika
Fyzika
Chemie
What is a Fraction? A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Tento příspěvek byl navržen PhET. Anonymous K-5 Ostatní Matematika
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 Matematika
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 Matematika
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 ZŠ II.st.
K-5
Guided
Discuss
Matematika
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
Fracciones Equivalentes A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson (traducción DianaL) K-5 Guided
Lab
Matematika
How do PhET simulations fit in my middle school program? Tento příspěvek byl navržen PhET. Sarah Borenstein ZŠ II.st. Ostatní Chemie
Biologie
Fyzika
Věda o Zemi
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) Tento příspěvek byl navržen PhET. Diana López ZŠ II.st.
Ostatní Matematika
Biologie
Chemie
Fyzika
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) Tento příspěvek byl navržen PhET. Diana López ZŠ II.st.
K-5
Guided

Lab
Demo
Discuss
Matematika
Astronomie
Fyzika
Chemie
Naming Fractions Bettie Parker K-5 Guided
Demo

Lab
Discuss
Matematika
분수 소개 SIM 사용설명서 이화국(Wha Kuk Lee) ZŠ II.st.
Demo
Matematika
Le frazioni simone ZŠ II.st. Guided Matematika
Explorando as frações Ana Marta Espindola Marlise Honório de Oliveira Maria Aparecida F. Martinez Viviane Soares da Silva Juçara Aparecida Rosa K-5 Lab
Ostatní
Matematika
Fração Elenice Santos, Priscila Flores, Priscila Roemers, Patricia Botelho, Benta Souza ZŠ II.st. Lab Matematika
Introdução a problemas com frações Manoel Bento, Alessandra Rodrigues, Elaine Martins, Juliano Flor K-5 Lab Matematika

Jazyk Download or Run Tips
Albanian All shqip Download Run now Thyesat: Hyrje
Basque All Euskara Download Run now Zatiketak: sarrera
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Danish All Dansk Download Run now Brøker: Intro
Dutch All Nederlands Download Run now Breuken: inleiding
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Chinese (China) All 中文 (中国) Download Run now 分数:入门
Chinese (Taiwan) All 中文 (台灣) Download Run now Fractions: Intro_分數的介紹
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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 10.13+, Safari 13+, latest version of Chrome.

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

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