Section 1 3 Solving Equations Algebra 2 Monday

Section 1. 3 Solving Equations

Algebra 2 Monday, 9/8/14 • Warm-ups: 1. 1 & 1. 2 Review • Check in HW #1. 10 pg 49 -50 #11 -25 • Discussion and notes: 1. 3 Solving Equations • Assignment due Tuesday: • A#1. 30 pg 51, #28 – 39 all QUIZ: Thursday, 9/11 Sections 1. 1 – 1. 4 Curriculum Night Wednesday, 9/10

Learning Targets 1. Translate verbal expressions into algebraic expressions and equations, and vice versa 2. Solve equations using the properties of equality Success Criteria: • Q&A • Sample Practice Problems • Homework

Key Vocabulary • Open A mathematical sentence containing one or more variables. Sentence: • Equation: A mathematical sentence stating two mathematical expressions are equal. • Solution: (of an open sentence) Each replacement of a number for a variable in an open sentence that results in a true sentence.

Properties of Equality Property Symbols Reflexive For any real number a, a = a Symmetric For all real numbers, a and b, if a = b, then b = a Transitive For all real numbers a, b, and c, if a = b and b = c, then a = c. Substitution If a = b, then a may be replaced by b and b may be replaced by a. Examples

Practice – Algebraic to Verbal Sentence •

Practice – Properties of Equality •

Tips to Remember When Solving Equations… • Goal of solving an equation: • Get the variable alone on one side of the equation and everything else on the other side. • What you do to one side of the equation, you MUST do to the other side. • Checking solutions to discover possible errors is a vital procedure when you use math on the job. • Use reverse-PEMDAS when solving multi-step equations.

Practice – Solving Equations

Practice – Solving Equations

Practice – Solving Equations

Practice – Solving Equations

Time for Practice!!! Assignment due Tuesday: • A#1. 30 pg 51, #28 – 39 all