Unit 8 Lesson 1 (U8L1) PS 5-1: Solve and verify word problems using a mathematical expression Variables & Algebraic Expressions

Vocabulary, p. 92 WordDefinitionExample or Picture Variable Constant Algebraic Expression Evaluate

Notes Copy the sentences and fill in the blank:  In Algebra, letters are often used to represent ___________.  Letters have values that can change, or _______.  To ___________ an algebraic expression, ____________ a number for the variable.  When evaluating expressions, use the ________ ___ _______________.

Copy from book:  Example 1, p. 92  Mult./Div. Table, p. 93  1 st Paragraph to the left of the mult./div. table, p. 93  Example 2 & 3, p.93

Think & Discuss  Copy the question, then answer in your notes:  #1-2 p. 93 “Think and Discuss”