A teacher-faciliated problem solving introduction to fraction addition.
While Alan and Ada Ant build sandcastles, students develop a conceptual understanding of fraction addition. They use strip diagrams, find common denominators, and adjust partitioning to create fractions with a common denominator.
5 problems include fractions with different denominators.
Use with the whole class to introduce or practice fraction addition or during tutoring or intervention.
This activity includes clear and concise teacher directions and Think Aloud questions, a detailed answer key, and conversation starters that give students what they need to have meaningful academic discussions.
A companion activity, Castles Made of Sand – The Competition, deals primarily with subtraction.
Common Core Curriculum alignment
Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5...
Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number s...
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Find more resources for these topics
MathematicsFractions, Decimals, and PercentagesOperationsAdditionSubtractionProblem SolvingNumbersSolveNumber and OperationsFractional OperationsWorksheetsTask CardsWord ProblemsMath Center ActivitiesGuided Math ActivitiesSmall GroupStory Problems
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