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.

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.