Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Chapter 1, Lesson 1


Published on

Published in: Education, Technology
  • Be the first to comment

  • Be the first to like this

Chapter 1, Lesson 1

  1. 1. 7 th Grade Pre-Algebra Chapter 1-1
  2. 2. Terms and Concepts (A) <ul><li>Algebraic expression: a mathematical expression describing real world situation </li></ul><ul><ul><li>Ex. 45 * n </li></ul></ul><ul><li>Variable: a letter in an algebraic expression that represents an unknown value </li></ul><ul><ul><li>The letter n in the above example </li></ul></ul><ul><li>Constant: a specific number in an algebraic expression </li></ul><ul><ul><li>The number 45 in the above example </li></ul></ul>
  3. 3. Terms and Concepts (B) <ul><li>Numerical expression: an expression containing only numbers and mathematical operations </li></ul><ul><ul><li>Ex. (3 + 8) * (6-2) + 8 * 9 </li></ul></ul><ul><li>Factor: quantity being multiplied in a multiplication problem </li></ul><ul><li>Product: the result of multiplying factors </li></ul><ul><li>Equation: a mathematical sentence containing an equals sign. </li></ul><ul><ul><li>May contain numbers and variables </li></ul></ul>
  4. 4. Class assignment <ul><li>Work the examples on page 5 </li></ul><ul><ul><li>Problems 1-8 </li></ul></ul><ul><li>Work on pages 6-7 </li></ul><ul><ul><li>Problems 4-13 </li></ul></ul><ul><ul><li>Problems 14-42 (evens) </li></ul></ul>
  5. 5. Homework Assignment <ul><li>Do page 1 questions 1-18 (all) from the practice workbook. </li></ul><ul><li>Create an example of a real world algebraic expression. Give both the verbal expression and the algebraic expression. </li></ul>