Chapter 1, Lesson 1
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This document provides definitions and concepts for 7th grade pre-algebra chapter 1-1, including algebraic expressions using variables and constants to represent real world situations, numerical expressions containing only numbers and operations, factors and products in multiplication, and equations containing numbers, variables, and an equals sign. It assigns classwork examples and problems, and homework to do practice workbook questions and create a real world algebraic expression example with both verbal and algebraic forms.
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Chapter 1, Lesson 1
- 1. 7 th Grade Pre-Algebra Chapter 1-1
- 2. Terms and Concepts (A) Algebraic expression: a mathematical expression describing real world situation Ex. 45 * n Variable: a letter in an algebraic expression that represents an unknown value The letter n in the above example Constant: a specific number in an algebraic expression The number 45 in the above example
- 3. Terms and Concepts (B) Numerical expression: an expression containing only numbers and mathematical operations Ex. (3 + 8) * (6-2) + 8 * 9 Factor: quantity being multiplied in a multiplication problem Product: the result of multiplying factors Equation: a mathematical sentence containing an equals sign. May contain numbers and variables
- 4. Class assignment Work the examples on page 5 Problems 1-8 Work on pages 6-7 Problems 4-13 Problems 14-42 (evens)
- 5. Homework Assignment Do page 1 questions 1-18 (all) from the practice workbook. Create an example of a real world algebraic expression. Give both the verbal expression and the algebraic expression.