# 6.7 Rational Numbers

### Lesson 1

- I can explain what 0, positive numbers, and negative numbers mean in the context of temperature and elevation.
- I can use positive and negative numbers to describe temperature and elevation.
- I know what positive and negative numbers are.

### Lesson 2

- I can determine or approximate the value of any point on a number line.
- I can represent negative numbers on a number line.
- I understand what it means for numbers to be opposites.

### Lesson 3

- I can explain how to use the positions of numbers on a number line to compare them.
- I can explain what a rational number is.
- I can use inequalities to compare positive and negative numbers.

### Lesson 4

- I can compare and order rational numbers.
- I can use phrases like “greater than,” “less than,” and “opposite” to compare rational numbers.

### Lesson 5

- I can explain and use negative numbers in situations involving money.
- I can interpret and use negative numbers in different contexts.

### Lesson 6

- I can explain what the absolute value of a number is.
- I can find the absolute values of rational numbers.
- I can recognize and use the notation for absolute value.

### Lesson 7

- I can explain what absolute value means in situations involving elevation.
- I can use absolute values to describe elevations.
- I can use inequalities to compare rational numbers and the absolute values of rational numbers.

### Lesson 8

- I can graph inequalities on a number line.
- I can write an inequality to represent a situation.

### Lesson 9

- I can determine if a particular number is a solution to an inequality.
- I can explain what it means for a number to be a solution to an inequality.
- I can graph the solutions to an inequality on a number line.

### Lesson 10

- I can explain what the solution to an inequality means in a situation.
- I can write inequalities that involves more than one variable.

### Lesson 11

- I can describe a coordinate plane that has four quadrants.
- I can plot points with negative coordinates in the coordinate plane.
- I know what negative numbers in coordinates tell us.

### Lesson 12

- When given points to plot, I can construct a coordinate plane with an appropriate scale and pair of axes.

### Lesson 13

- I can explain how rational numbers represent balances in a money context.
- I can explain what points in a four-quadrant coordinate plane represent in a situation.
- I can plot points in a four-quadrant coordinate plane to represent situations and solve problems.

### Lesson 14

- I can find horizontal and vertical distances between points on the coordinate plane.

### Lesson 15

- I can find the lengths of horizontal and vertical segments in the coordinate plane.
- I can plot polygons on the coordinate plane when I have the coordinates for the vertices.

### Lesson 16

- I can explain what a common factor is.
- I can explain what the greatest common factor is.
- I can find the greatest common factor of two whole numbers.

### Lesson 17

- I can explain what a common multiple is.
- I can explain what the least common multiple is.
- I can find the least common multiple of two whole numbers.

### Lesson 18

- I can solve problems using common factors and multiples.

### Lesson 19

- I can use ordered pairs to draw a picture.