Goals of the Unit

1. use appropriate notation to indicate positive and negative numbers
2. locate rational numbers (positive and negative fractions and decimals and zero) on a number line
3. compare and order rational numbers
4. understand the relationship between a positive or negative number and its opposite (additive inverse)
5. develop algorithms for adding, subtracting, multiplying, and dividing positive and negative numbers
6. write mathematics sentences to show relationships
7. write and use related fact families for addition/subtraction and multiplication/division to solve simple equations with missing facts
8. use parentheses and order of operations to make computational sequences clear
9. understand and use the Commutative Property for addition and multiplication of positive and negative numbers
10. apply the Distributive Property with positive and negative numbers to simplify expressions and solve problems
11. use positive and negative numbers to graph in four quadrants and to model and answer questions about applied settings

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Vocabulary

absolute value
additive inverse
Commutative Property
Distributive Property
integers
negative numbers
opposites
order of operations
positive numbers
rational numbers