LEARN NC

K–12 teaching and learning · from the UNC School of Education

Eggsactly with a dozen eggs

http://illuminations.nctm.org/LessonDetail.aspx?ID=L336

A lesson plan for Grades 3–4 Mathematics

Provider: National Council of Teachers of Mathematics

About this resource

Appropriate grades
3–4
Subjects
mathematics (general, number sense)
Provider
National Council of Teachers of Mathematics

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Students are given the opportunity to examine fractions as part of a set. This lesson helps students develop skill in problem solving and reasoning as they examine relationships among the fractions used to describe part of a set of 12.

Students will:

  • Demonstrate understanding that a fraction can be represented as part of a set, given a set of identical items (eggs).
  • Identify fractions when the whole (set) and part of the set is given.
  • Identify fraction relationships associated with the set, such as one fourth is one half of one half.

NCTM Standards and Expectations covered in this lesson include:

  • Developing understanding of fractions as parts of unit wholes, as parts of a collection, as locations on number lines, and as divisions of whole numbers.
  • Using models, benchmarks, and equivalent forms to judge the size of fractions.
  • Recognizing and generating equivalent forms of commonly used fractions, decimals, and percents.

North Carolina Curriculum Alignment

Mathematics (2004)

Grade 3

  • Goal 1: Number and Operations - The learner will model, identify, and compute with whole numbers through 9,999.
    • Objective 1.05: Use area or region models and set models of fractions to explore part-whole relationships.
      • Represent fractions concretely and symbolically (halves, fourths, thirds, sixths, eighths).
      • Compare and order fractions (halves, fourths, thirds, sixths, eighths) using models and benchmark numbers (zero, one-half, one); describe comparisons.
      • Model and describe common equivalents, especially relationships among halves, fourths, and eighths, and thirds and sixths.
      • Understand that the fractional relationships that occur between zero and one also occur between every two consecutive whole numbers.
      • Understand and use mixed numbers and their equivalent fraction forms.
    • Objective 1.06: Develop flexibility in solving problems by selecting strategies and using mental computation, estimation, calculators or computers, and paper and pencil.

Grade 4

  • Goal 1: Number and Operations - The learner will read, write, model, and compute with non-negative rational numbers.
    • Objective 1.03: Solve problems using models, diagrams, and reasoning about fractions and relationships among fractions involving halves, fourths, eighths, thirds, sixths, twelfths, fifths, tenths, hundredths, and mixed numbers.
    • Objective 1.05: Develop flexibility in solving problems by selecting strategies and using mental computation, estimation, calculators or computers, and paper and pencil.