Grades: 4‒5

Students construct fractions on a number line that add up to different target sums, all less than one. Given lists of possible numerators and denominators, students must build the fractions using only those numbers. Students identify strategies for constructing the sums using the fewest possible addends.

OBJECTIVES

- Students will use a number line model to explore adding fractions.
- Students will develop strategies for adding fractions to reach a given target sum using given numbers as choices for numerators and denominators.

COMMON CORE CONNECTIONS

Mathematical Practices

(1) Make sense of problems and persevere in solving them; (2) Reason abstractly and quantitatively; (3) Construct viable arguments and critique the reasoning of others; (5) Use appropriate tools strategically; (7) Look for and make use of structure.

Content Standards

4.NF3

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