What's in Unit 4?
Unit 4 covers
Equations
See the bottom of this webpage for access to PowerPoint lessons on equations or try the links below
Solving One-Step Equations (Addition & Subtraction):
Solving One-Step Equations (to solve real world multiplication & division problems):
Solving One-Step and Two-Step Equations
Writing and Solving Two-Step Equations (use web code: AQE-0775)
Inequalities
Remember, in elementary school, you learned that the alligator opens his mouth to eat the larger quantity. But we always read from left to right, so we see below that the small cupcake is LESS THAN the larger cupcake. We see that the larger piece of pizza is GREATER THAN the smaller piece.
See the bottom of this webpage for access to PowerPoint lessons on inequalities or try the video links below:
Solving Inequalities (just like solving equations!)
Solving One-Step Inequalities using Addition or Subtraction (code: AQE-0775)
Graphing Inequalities (code: AQE-0775)
Writing Inequalities (code: AQE-0775)
Unit 4 Vocabulary
Equation: a statement in which the expression on one side of an = sign equals the expression on the other side.
Inequality: a statement which shows the relationship between two expressions using
<, >, ≤, ≥, or ≠.
Dependent variable: it’s value depends on the value of another variable.
Independent variable: does not change based on other variables.
Set: a group of numbers that solves an equation.