1. Lesson 1.1 How can you analyze data?
By making different types of graphs: bar graphs, frequency tables, and histograms.

2. Lesson 1.2
How do you use the order of operations to evaluate an expression?
The order of operations tells us which operation to complete first when there is more than one operation in an expression.
PEMDAS
Evaluate expressions inside grouping symbols.
Evaluate powers.
Multiply and divide from left to right.
Add and subtract from left to right.

3. Lesson 1.3 How do you write and evaluate variable expressions?
To write a variable expression, look for words that indicate mathematical operations and replace the words with mathematical operations and variables.
To evaluate a variable expression, substitute the number for the variable, perform the operation(s), and simplify the result, if necessary.

4. Lesson 1.4 How do you evaluate expressions with powers?
Write the power as a product.
Multiply.
Follow the order of operations.

5. Lesson 1.5 – 1.6 How do you use formulas to find unknown values?
Write down the formula.
Substitute the information you have.
Solve for the missing variable.

6. Lesson 1.7 How do you use the problem solving plan to solve problems?
By the steps in the plan you can identify what you need to know, decide on a strategy to use, carry out the strategy, and then check that the answer you calculate is reasonable.