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


  • Fractions
  • Equivalent Fractions
  • Mixed Numbers
  • Number Line


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!


  • 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


共用核心 - 數學

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.
Understand a fraction as a number on the number line; represent fractions on a number line diagram.
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.
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


下載教師教學提示 PDF 檔 模擬教學的控制概觀、模型簡化與引導學生思考 ( PDF ).


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

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The new HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.

iOS 11+ Safari
iPad compatible sims

Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.

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 Chrome.

Linux Systems:
Not officially supported. Please contact with troubleshooting issues.

設計團隊 第三方諮詢 感謝
  • Amanda McGarry (lead designer)
  • Jonathan Olson (lead developer)
  • Sam Reid (original developer)
  • Martin Veillette (developer)
  • Michael Dubson
  • Trish Loeblein
  • Ariel Paul
  • Kathy Perkins
  • Vincent Davis
  • Michael Moorer
  • Dusty Cole
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