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  • Fractions
  • Equivalent Fractions
  • Improper Fraction
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İçerik

  • 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!

Örnek Öğrenim Hedefleri

  • 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.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.
Version 1.02

Teacher Tips

Öğretmen el kitabı (pdf) Phet ekibi tarafından oluşturulan ipuçları içerir. ( PDF ).

Teacher-Submitted Activities

What is a Fraction? A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Bu katkı PhET tarafından tasarlanmıştır. Anonymous K-5 Diğer Matematik
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 Matematik
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 Matematik
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 Matematik
Fractions 3 Day Unit A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. Meaghan Hixson K-5 Guided Matematik
Alignment of PhET sims with NGSS Bu katkı PhET tarafından tasarlanmıştır. Trish Loeblein Lİse Diğer Yer Bilimleri
Kimya
Biyoloji
Fizik
How do PhET simulations fit in my middle school program? Bu katkı PhET tarafından tasarlanmıştır. Sarah Borenstein Ortaokul Diğer Yer Bilimleri
Kimya
Biyoloji
Fizik
CCSS Math Alignment with Sims Bu katkı PhET tarafından tasarlanmıştır. Amanda McGarry Lİse
K-5
Ortaokul
Diğer Matematik
MS and HS TEK to Sim Alignment Elyse Zimmer Lİse
Ortaokul
Diğer Biyoloji
Kimya
Fizik
분수 소개 SIM 사용설명서 이화국(Wha Kuk Lee) Ortaokul Gösteri
Ödev
Matematik
NGSS Simulation Alignment/Correlation Matthew Huffine Lİse
Lisans-Giriş
Ortaokul
K-5
Gösteri
Diğer
Diğer
Comparing Fractions with Like Numerators and Denominators Margaret McCabe Ortaokul
K-5
Laboratuvar
Building Fractions Michellle Fiumefreddo K-5 Kavram Soruları Matematik

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