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### Gaiak

• Zatikiak
• Zatiki baliokideak
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### Deskribapena

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!

• 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

### Ohizko alineamenduak

#### 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.
3.NF.A.3
Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
3.NF.A.3a
Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.
3.NF.A.3b
Recognize and generate simple equivalent fractions, e.g., 1/2 = 2/4, 4/6 = 2/3. Explain why the fractions are equivalent, e.g., by using a visual fraction model.
3.NF.A.3d
Compare two fractions with the same numerator or the same denominator by reasoning about their size. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.
Bertsioa: 1.02

### Irakasleentzako tresnak

 Irakasle-gidak (pdf) PhET taldeak sortutako tresnak ditu. ( PDF ).

### Irakasleak bidalitako jarduerak

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Hizkuntza Deskargatu edo Exekutatu Aholkuak
Afrikaans Dena Afrikaans Breuk Inleiding
Albanianera Dena shqip Thyesat-hyrje
Alemana Dena Deutsch Einführung: Brüche
Amharera Dena Amharic የክፍልፋይ መግቢያ
Arabiera (Saudi Arabia) Dena العربية (السعودية) مقدمة للكسور
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Espainiera Dena español Introducción a las fracciones
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Espainiera (Spain) Dena español (España) Introducción a las fracciones
Frantsesa Dena français Introduction aux fractions
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Mazedoniera Dena македонски Делови - Вовед
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Poloniera Dena polski Ułamki - wstęp
Portugesa Dena português Introdução a Fracções
Portugesa (Brazil) Dena português (Brasil) Intro a Frações
Serbiera Dena Српски Разломци - Увод
Sloveniera Dena Slovenščina Predstavitev ulomkov
Suediera Dena svenska Bråk intro
Swahilia Dena Swahili Utangulizi Sehemu
Thaiera Dena ไทย สนุกกับเศษส่วน
Turkiera Dena Türkçe Kesir Tanıtımı
Turkmenera Dena Turkmen Droblara giriş
Txekiera Dena čeština Úvod do zlomků
Txinera (Simplified) Dena 中文 (中国) 分数介绍
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