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Fraction Focus: Addition & Subtraction with Common Denominators - - PowerPoint PPT Presentation
Fraction Focus: Addition & Subtraction with Common Denominators - - PowerPoint PPT Presentation
Fraction Focus: Addition & Subtraction with Common Denominators Your host Leah Dix White Regional Consultant Kentucky Center for Mathematics leah.dix@louisville.edu Visit Our Website www.kentuckymathematics.org Todays Session
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Visit Our Website
www.kentuckymathematics.org
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Today’s Session
- Research
- Standard
- Fractions Operations w/common denominators
- Color Wall
- Number Line Hops
- Geogebra
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Research
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IES Recommendation 3
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Standards
- a. Understand addition and subtraction of fractions as joining
and separating parts referring to the same whole.
- b. Decomposing a fraction into a sum of fractions with the
same denominator in more than one way, recording each decomposition by an equation. Justify decompositions.
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Five Interpretations
- f Rational Numbers
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Adjective Noun View
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Units
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Contextual Examples and Models
Robert and Elijah were eating slices of cake. Robert had 2/8 of his cake left. Elijah had 1/8 of his cake left. How much do the boys have together.
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Decomposing Fractions
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Decomposing Fractions
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Adding fractions with common denominators
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Color Fraction Wall Activity
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Color Fraction Wall Activity
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Clark Fraction Wall Online Version C-Rod Addition and Subtraction
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C-Rod Addition and Subtraction
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Number Line Addition and Subtraction
How many hops does it take?
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Geogebra Fraction Simulation
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What works for teaching fraction
- perations?
use contexts and provide Rich Tasks a variety of models include estimation & invented methods address misconceptions
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Coming up this Week
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Follow Us!
www.kentuckymathematics.org
@KyMath @KyCenterforMath
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