Chapter 1, Lesson 2
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The document outlines key concepts and terms from a 7th grade pre-algebra chapter including order of operations, properties of equality, additive identity, multiplicative identity, and evaluating expressions. It assigns examples and problems for students to work through relating to these concepts.
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Chapter 1, Lesson 2
- 1. 7 th Grade Pre-Algebra Chapter 1-2
- 2. Terms and Concepts (A) Order of operations: the proper method of solving a complex numerical or algebraic expression 1. Parentheses, brackets 2. multiplication/division from left to right 3. addition/subtraction from left to right
- 3. Terms and Concepts (B) Property: certain statements that are true for any number Properties of equality Substitution: If a = b, then a may be replaced by b Reflexive: a = a Symmetric: if a = b, then b = a Transitive: if a = b and b = c, then a = c
- 4. Terms and Concepts (C) Additive Identity property: for any number a, a + 0 = 0 + a = a Multiplicative Identity property: for any number a, a * 1 = 1 * a = a Multiplicative Property of 0: for any number a, a * 0 = 0 * a = 0 Evaluating: applying the properties of numbers and arithmetic operations to find the value of an algebraic expression
- 5. Class assignment Work the examples on pages 8-10 Problems 1-8 Work on pages 11-12 Problems 4-18 Problems 20-48 (evens)
- 6. Homework Assignment Do page 2 questions 1-20 (all) from the practice workbook.