LEARN NC

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

Finding perimeter and area

http://illuminations.nctm.org/LessonDetail.aspx?ID=L651

A lesson plan for Grades 4–5 Mathematics

Provider: National Council of Teachers of Mathematics

About this resource

Appropriate grades
4–5
Subjects
mathematics (applied mathematics, measurement)
Provider
National Council of Teachers of Mathematics

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Students develop strategies for finding the perimeter and area for rectangles and triangles using geoboards and graph paper. They also learn how measurement is a critical component in planning a clubhouse design. Illuminations provides and activity sheet and detailed instructions for completing the lesson.

Students will:

  • Identify perimeter and area.
  • Apply problem-solving strategies.

NCTM Standards and Expectations:

  • Explore what happens to measurements of a two-dimensional shape such as its perimeter and area when the shape is changed in some way.
  • Develop, understand, and use formulas to find the area of rectangles and related triangles and parallelograms.
  • Develop strategies for estimating the perimeters, areas, and volumes of irregular shapes.

North Carolina Curriculum Alignment

Mathematics (2004)

Grade 4

  • Goal 2: Measurement - The learner will understand and use perimeter and area.
    • Objective 2.01: Develop strategies to determine the area of rectangles and the perimeter of plane figures.
    • Objective 2.02: Solve problems involving perimeter of plane figures and areas of rectangles.

Grade 5

  • Goal 2: Measurement - The learner will recognize and use standard units of metric and customary measurement.
    • Objective 2.02: Identify, estimate, and measure the angles of plane figures using appropriate tools.