Understanding Integers and Number Lines

Mrs. Kay introduces integers, explaining they are positive and negative whole numbers, including zero. She demonstrates how to place integers on both horizontal and vertical number lines, emphasizing the directionality of positive and negative values. The lesson concludes with a light-hearted note, sharing a picture of her puppy.

What are integers?

• Fractions and decimals

• Positive whole numbers only

• Negative whole numbers only

• Positive and negative whole numbers

Which of the following is NOT an integer?

• 5

• -3

• 2.5

• 0

On a horizontal number line, which direction represents positive numbers?

• Left

• Right

• Up

• Down

If you move to the left on a horizontal number line, what happens to the value of the numbers?

• They stay the same

• They decrease

• They increase

• They become positive

What is the interval length between each tick mark if each tick mark represents 2 units?

• 4

• 3

• 1

• 2

If you start at -6 and move to the right on a horizontal number line, what happens to the value of the numbers?

• They increase

• They decrease

• They stay the same

• They become negative

On a vertical number line, which direction represents positive numbers?

• Left

• Right

• Up

• Down

As you move up on a vertical number line, what happens to the value of the numbers?

• They increase

• They become negative

• They decrease

• They stay the same

What is the value of zero on a number line?

• Positive

• Negative

• Neither positive nor negative

• Both positive and negative

What is the main takeaway from the lesson on comparing positive and negative numbers?

• Numbers increase as you move right or up

• Negative numbers are always larger

• Positive numbers are always smaller

• Numbers decrease as you move right or up