Adding Fractions (Fraction Tiles)


Add fractions with the help of the Fractionator, a fraction-tile-making machine in the Gizmo. Model sums by placing the tiles on side-by-side number lines. Explore the usefulness of common denominators in adding. Express sums as improper fractions or mixed numbers.

Screenshot of Adding Fractions (Fraction Tiles) Gizmo

LESSON MATERIALS:

  • Assessment Questions

LEARNING OBJECTIVES:

  • Add fractions with like denominators.
  • Add fractions with unlike denominators.
  • Find the lowest common denominator (LCD) of a set of fractions.
  • Use fraction tiles to model addition of fractions.

VOCABULARY:

  • denominator, equivalent, fraction, least common denominator, numerator, sum

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