East Woods Intermediate
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 East Woods Intermediate
 Math Workshop
 Chapter 3: Fractions & Decimals
Koneval, Stacy
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Math Workshop
 About Bridges Math
 About Bridges Math  copy
 Chapter 1: Multiplication Thinking
 Chapter 2: MultiDigit Multiplication & Early Division
 Chapter 3: Fractions & Decimals
 Chapter 4: Addition, Subtraction & Measurement
 Chapter 5: Geometry & Measurement
 Chapter 6: Multiplication & Division, Data & Fractions
 Chapter 7: Patterns & Probability
 Chapter 8: Playground Design
 Classroom Management
 Procedures

Chapter 3:Fractions and Decimals

Overview
In this unit, students work with a variety of tools, including folded paper strips, egg cartons, geoboards, number lines, and base ten pieces, to model, read, write, compare, order, compose, and decompose fractions and decimals. Their investigations and explorations range from the purely mathematical—the relationship between fifths and decimals, for example—to applied, as they determine a strategy to figure out how many candy bars the fourth grade teacher will have to buy if she plans to give an undefined number of students threequarters of a bar each.
Skills Across the Grade Levels
The table below shows the major skills and concepts addressed in Unit 3. It is meant to provide a quick snapshot of the expectations for students’ learning during this unit, as well as information about how these skills are addressed in Bridges Grade 3, elsewhere in Grade 4 including Number Corner (NC), and also in Grade 5.
Major Skills/Concepts Addressed Gr. 3 Unit 3 Gr. 4 Elsewhere Gr. 5
4.NF.1 Use a visual model to explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b)
4.NF.1 Use visual models to generate and recognize equivalent fractions
4.NF.2 Compare two fractions with different numerators and different denominators, use the symbols >, =, and < to show those comparisons, and explain why one fraction must by greater than or less than another
4.NF.3a Explain addition of fractions as joining parts referring to the same whole
4.NF.3b Express a fraction as the sum of other fractions with the same denominator in more than one way, and write equations to match
4.NF.3c Add and subtract fractions and mixed numbers with like denominators
4.NF.3d Solve story problems involving addition or subtraction of fractions referring to the same whole and with like denominators
4.NF.4a Demonstrate an understanding that a fraction a/b is a multiple of the unit fraction 1/b; write an equation showing that a fraction a/b is the product of a × 1/b
4.NF.4b Multiply a fraction by a whole number; demonstrate an understanding that any multiple of a/b is also a multiple of the unit fraction 1/b
4.NF.5 Express a fraction with denominator 10 as an equivalent fraction with denominator 100
4.NF.5 Add a fraction with denominator 10 to a fraction with denominator 100 by rewriting the first fraction as an equivalent fraction with denominator 100
4.NF.6 Write fractions with denominators 10 and 100 in decimal notation
4.NF.7 Compare two decimal numbers with digits to the hundredths place, use the symbols >, =, and < to show those comparisons, and explain why one decimal number must be greater than or less than another
*Retrieved on July 21, 2021 from http://bridges.mathlearningcenter.org/

Tool: Visual Model: Equivalent Fractions
With support from visuals with the area model, students type numbers into empty boxes to create a series of equivalent fractions. View an additional page of fractions here. 
Tool: Fraction Bars
Create fraction bars of different sizes and colors to model fractions. 
Tool: Find a Fraction of a Number
In this interactive whiteboard activity, students find fractions of whole numbers using fraction strips for visual support. 
Tool: Egg Carton Virtual Manipulative
Click and drag cartons, eggs, and strings to build visual models of egg carton fractions. 
Game: Pizza Bears
Bears share pizzas. Select from 15 bears and 16 pizzas. Teaching tool for whole group instruction. Answers are not given; it's meant to be used as a manipulative for exploration. Use a knife to cut pizzas into desired number of pieces. 
Game: Ordering Fractions
Click and drag fractions to put in vertical order. The first level uses unit fractions; subsequent levels contain fractions with unlike denominators. 
Game: Melvin's Make a Match
Click on bottles to match equivalent fractions in this Cyberchase game. 
Game: Dig It
Create a fraction from a given set of numbers and locate that fraction on a number line that runs across a field of precious stones. On the Calculation Nation homepage, use "guest pass" to access the game list and play against the computer. Click on the title, Dig It. 
Game: Creating Equivalent Fractions
Divide and shade circles or squares to create equivalent fractions and find the fractions on a number line.

Fraction Concentration
Click on the desired mode to play a game in which you match each shape, array, percent, or fraction visual with its name. The game will play an audio recording of the name.