**Warmup**

Solve the problems on paper before checking the answers.

**Activity #1**

**Locating Rational Numbers on the number line.**

- Drag the colored points to locate the numbers they represent on the number line.
- When done, click to check the order if you are correct otherwise you have to retry.
- Then click the reset button, for a new set of numbers.

**Activity #2**

** ****Evaluate Expressions.**

- For each set of values for a and b, evaluate the given expressions and record your answers in the table.

When a = – and b = 6,

(1.) which expression has the largest value?

(2.) which expression has the smallest value?

(3.) which expression is the closest to zero?

When a = and b = -6,

(4.) which expression has the largest value?

(5.) which expression has the smallest value?

(6.) which expression is the closest to zero?

When a = -6 and b = ,

(7.) which expression has the largest value?

(8.) which expression has the smallest value?

(9.) which expression is the closest to zero?

Are there any values you could use for **a **and **b **that would make all of these expressions have the same value? Explain your reasoning.

**Activity #3**

** Locate a Position Relative to Another on a Plane.**

- In the applet below, you may choose to start by clicking on the open circles on the seagull and shark to drag them to new vertical positions.
- Once you have them in place, drag each of the other animals to the vertical axis to show its position, determined by the expression next to it.
- You can add on the grid to assist in proper location.

**Challenge #1**

Group the expressions below into pairs that have the same value.

**Challenge #2**

The value of is –.

**Challenge #3**

Decide if each statement below is true or false.

**Quiz Time**

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