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Lesson Plan: Square Roots Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to find square roots of perfect square integers and estimate the square root of a value.


Students will be able to

  • understand that taking the square root of a number is the inverse operation of squaring that number,
  • understand that the square root symbol denotes the positive square root of a number,
  • find the square root of a perfect square,
  • perform addition and subtraction operations on square roots of perfect squares,
  • solve geometric and word problems by taking the square root,
  • estimate the square root of a nonperfect square number by using smaller and larger square numbers,
  • understand the difference between exact representations of roots and their decimal approximations.


Students should already be familiar with

  • perfect squares.


Students will not cover

  • square roots of values greater than 225,
  • square roots of fractions, decimals, or algebraic expressions,
  • fractional indices,
  • solving equations by taking the square root.

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