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

Grid and Percent It

http://illuminations.nctm.org/LessonDetail.aspx?ID=L249

A lesson plan for grades 6–7 Mathematics

Provider: National Council of Teachers of Mathematics


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In this Illuminations lesson plan, students solve various types of percent problems using a 10 x 10 grid, a common model for visualizing percents. This model offers a means of representing the given information as well as suggesting different approaches for finding a solution.

North Carolina Curriculum Alignment

Mathematics (2004)

Grade 6

  • Goal 1: Number and Operations - The learner will understand and compute with rational numbers.
    • Objective 1.02: Develop meaning for percents.
      • Connect the model, number word, and number using a variety of representations.
      • Make estimates in appropriate situations.

Grade 7

  • Goal 1: Number and Operations - The learner will understand and compute with rational numbers.
    • Objective 1.01: Develop and use ratios, proportions, and percents to solve problems.