Understanding Number Line Operations

Mr. Wooley teaches overseas middle school students about integer addition using number lines and games. The lesson covers adding positive and negative integers, using visual aids like number lines, and applying these concepts to real-world scenarios such as temperature changes. Students engage in problem-solving through the integer game and card games, enhancing their understanding of integer operations.

What happens on a number line when you add a positive integer?

• You move to the left.

• You move to the right.

• You move up.

• You stay in the same place.

If you start at 54 and add 81, how many units do you move on the number line?

• 54 units to the left

• 81 units to the right

• 81 units to the left

• 54 units to the right

When adding a negative number to a positive number, which direction do you move on the number line?

• Right

• Up

• Down

• Left

What is the result of adding -5 and 3 on a number line?

• -2

• 8

• 2

• -8

If you add 6 and a number that moves you 15 units to the left, what is the sum?

• -21

• 9

• -9

• 21

Can two positive cards result in a negative sum?

• Only if one card is zero

• Yes, always

• No, never

• Yes, sometimes

What is the value of a hand with cards -8 and -10?

• -18

• 18

• -2

• 2

If you discard a -10 card and select a +10 card, what is the new sum with an initial -8?

• -2

• 18

• 2

• -18

How many units do you move when adding 67 and -35?

• 67 units to the left

• 67 units to the right

• 35 units to the left

• 35 units to the right

What is the sum of -4 and a number 12 units to the right?

• 4

• -8

• -4

• 8