Fractions: Mixed Numbers_分數的介紹:帶分數

Fractions: Mixed Numbers_分數的介紹:帶分數 螢幕截圖  下載  嵌入
  • Fractions
  • Equivalent Fractions
  • Mixed Numbers

標題

  • Fractions
  • Equivalent Fractions
  • Mixed Numbers
  • Number Line

描述

Explore fractions while you help yourself to 1 and 1/2 chocolate cakes and wash it down with 1/3 a glass of water! Create your own fractions using fun interactive objects. Match shapes and numbers to earn stars in the mixed number game. Challenge yourself on any level you like. Try to collect lots of stars!

學習目標

  • 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, an improper fraction, and a mixed number
  • Build matching fractions using numbers and pictures

標準對齊

共用核心 - 數學

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.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.
5.NF.B.3
Interpret a fraction as division of the numerator by the denominator (a/b = a ÷ b). Solve word problems involving division of whole numbers leading to answers in the form of fractions or mixed numbers, e.g., by using visual fraction models or equations to represent the problem. For example, interpret 3/4 as the result of dividing 3 by 4, noting that 3/4 multiplied by 4 equals 3, and that when 3 wholes are shared equally among 4 people each person has a share of size 3/4. If 9 people want to share a 50-pound sack of rice equally by weight, how many pounds of rice should each person get? Between what two whole numbers does your answer lie?
版本 1.0.9

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老師提供的活動

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 國中
K-5
討論
指引
數學

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

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