10/5, 10/8, 10/9

Friday's class:

• We practiced simplifying expressions.
• When adding or subtracting negative integers be sure to choose a technique: absolute value rules, number lines, or using additive inverses. If you take the time to work it out, you do not need to guess.

Monday's class:

• We started solving simple equation using pieces of paper to represent variables and numbers. By adding and removing papers from both sides of the equal sign we were able to isolate x (solve the equation).
• See pgs. 108 - 109 for examples

Tuesday's Class:

• We compared solving equations by moving pieces of paper with solving equations using just symbols.
• KEY IDEA: Cancel operations using their inverses (addition cancels subtraction, subtraction cancels addition)
• We learned the Addition Property of Equality (APE) and the Subtraction Property of Equality (SPE). We used these to justify making changes to equations.

Homework: Read 110 - 112, pg. 113 # 15 - 35 odd (this was assigned long ago)

Reminder: Quiz Tomorrow

• Operations with +/- integers
• Simplifying expressions (including distributive property)
  
• Evaluating expressions