# 建立一個分數

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### 標題

• Fractions
• Equivalent Fractions
• Mixed Numbers

### 描述

Amber Chang (2012)

### 學習目標

• Build equivalent fractions using numbers and pictures
• Compare fractions using numbers and patterns
• Recognize equivalent simplified and unsimplified fractions
• Note: Build A Fraction expands on ideas from the Fraction Intro and Fraction Matcher sims or can be used as a stand-alone tool

### 標準對齊

#### 共用核心 - 數學

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.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.

### 老師提供的活動

Equivalent Fractions Day 3 of 3 Meaghan Hixson K-5 指引 數學
Fractions 3 Day Unit Meaghan Hixson K-5 指引 數學
Working with Fractions Deborah Gaff K-5 實驗室
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) Diana López 高中

PREPARATORIA: Alineación de PhET con programas de la DGB México (2017) Diana López 大學-簡介

PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) Diana López K-5

How do PhET simulations fit in my middle school program? Sarah Borenstein 國中 其它 地球科學

MS and HS TEK to Sim Alignment Elyse Zimmer 高中

분수 만들기 SIM 사용설명서 이화국(Wha Kuk Lee) K-5 作業

Kesirler - 3 Derslik Öğrenci Çalışması Sebnem Atabas (Translated from Fraction Unit Student Sheet by Meaghan Hixson) 國中 指引 數學
Building Fractions Nicole Scicutella K-5

Back to the Basics Nyetta Abernathy K-5

Teacher Michele Immediato K-5 實驗室 數學
Building Fractions Jillian Gutman K-5

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