# Acc6.7 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 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.
• I understand what it means for numbers to be opposites.

### Lesson 3

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

### Lesson 4

• 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 5

• 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 6

• I can use a number line to add positive and negative numbers.

### Lesson 7

• I understand how to add positive and negative numbers in general.

### Lesson 8

• I understand what positive and negative numbers mean in a situation involving money.

### Lesson 9

• I can explain the relationship between addition and subtraction of rational numbers.
• I can use a number line to subtract positive and negative numbers.

### Lesson 10

• I can find the difference between two rational numbers.
• I can solve problems that involve adding and subtracting rational numbers.
• I understand how to subtract positive and negative numbers in general.

### Lesson 11

• I can plot points with negative coordinates in the coordinate plane.
• I know what negative numbers in coordinates tell us.
• When given points to plot, I can construct a coordinate plane with an appropriate scale and pair of axes.

### Lesson 12

• 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 13

• I can find horizontal and vertical distances between points on the coordinate plane.
• I can plot polygons on the coordinate plane when I have the coordinates for the vertices.

### Lesson 14

• I can explain what it means when time is represented with a negative number in a situation about speed and direction.
• I can multiply two negative numbers.
• I can use rational numbers to represent speed and direction.

### Lesson 15

• I can solve problems that involve multiplying rational numbers.

### Lesson 16

• I can divide rational numbers.

### Lesson 17

• I can solve problems that involve multiplying and dividing rational numbers.
• I can solve problems that involve negative rates.

### Lesson 18

• I can add, subtract, multiply, and divide rational numbers.
• I can evaluate expressions that involve rational numbers.

### Lesson 19

• I can solve equations that include rational numbers and have rational solutions.

### Lesson 20

• I can explain what the solution to an equation means for the situation.
• I can write and solve equations to represent situations that involve rational numbers.

### Lesson 21

• I can use ordered pairs to draw a picture.

### Lesson 22

• I can solve problems about the stock market using rational numbers and percentages.