G.1.2

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.

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Formative Assessments
Formative Assessments
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Students partition a rectangle into four equal parts and describe each part using a fraction.
Four Parts of the Whole
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Students divide a hexagon into two, three, and six equal parts and write the unit fraction representing each part.
Unit Fractions
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Students partition an irregular hexagon into two equal parts and describe each part using a unit fraction.
Halves of an Irregular Polygon
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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.
Two Equal Parts
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
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CPALMS: Match shapes and numbers to earn stars in this fractions game.
Exploring Fractions
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CPALMS: This virtual manipulative relates parts of a whole unit to written description and fraction. There are more instructions to the right of the manipulative.
Fractions Parts of a Whole
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CPALMS: An interactive tool to represent a fraction circle, rectangle, or set model with numerators and denominators ranging from 1 to 100.
Fraction Models
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CPALMS: This online slideshow is another way to introduce parts of a whole to your class.
Frank and Fran’s Fabulous Fractions
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CPALMS: This applet lets students practice naming fractions by presenting various shapes divided into equal parts with some parts shaded.
Fractions Naming
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CPALMS: This extremely versatile manipulative can be used by learners of different grades. At early grades, this manipulative will help the students recognize, name, build, draw, and compare two-dimensional shapes.
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Assessment Questions
Assessment Questions
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Equation Editor 1
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Gridded Response 1
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Gridded Response 4
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Equation Editor 2
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Gridded Response 2
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Multiple Choice 1
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Equation Editor 3
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Gridded Response 3
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Multiple Choice 2
Videos of Expert Instruction
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Hook/Performance Tasks
Hook/Performance Tasks
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Students will decide looking at pictures whether one half of a circle is shaded or not and explain their thinking.
IM:  Representing Half of a Circle
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This task presents students with some creative geometric ways to represent the fraction one half.
IM:  Geometric Pictures of One Half
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the purpose of this task is for students to use their understanding of area as the number of square units that cover a region to recognize different ways of representing fractions with area.
IM :  Halves, Thirds, and Sixths