Lessons
6.1	Multiplication of Fractions and Mixed Numbers
6.2	Division of Fractions and Mixed Numbers
6.3	Review: Addition & Subtraction of Positive & Negative Numbers Adding Integers - Click on Apply and Practice, then on Learning to review rules. Take a quiz. Play Jeopardy! Learning the rules activity (from "Matti") - This virtual manipulative uses plus-minus chips to demonstrate adding positive and negative values.
6.4	Multiplication and Division of Positive and Negative Numbers
6.5	The Properties of Number Systems
6.6	Order of Operations Order the Rock Numbers! The West Return game - going backwards from Great Gulch and learn about negative numbers!
6.7	Review: Number Sentences
6.8	Solving Simple Equations Broken Calculator - In this game you have to get as close as possible to a given number, by using the still working buttons of a broken calculator.
6.9	Review: Pan-Balance Problems Balance Beam Activity - Use basic equation principles with the virtual Balance to find the weights of various figures. You are presented with a number of shapes and one of their weights is known. Your goal is to find the weights of the other objects by finding the relationships between the objects of various weights. This is achieved with a simulation of a balance beam to tell you how the weights relate.
6.10	Pan-Balance Equations
6.11	The Equivalent-Equations Method of Solving Equations Algebra Balance Scales Solve simple equations using a balance beam representation.
6.12	Inequalities
6.13	Unit 6 Review and Assessment