Addition of Integers: Modeling Contextual Situations
- Author:
- Alexis Snider
Question 1: Represent the situation on the number line by moving the point.
Use the sliders to model the following: It’s 5º and I want to turn the temperature up 3º. What is the new temperature?
Write an addition equation to match the model.
Question 2: Represent the situation on the number line by moving the point.
Use the sliders to model the following: It’s -5º and I want to turn the temperature down 3º. What is the new temperature?
Write an addition equation to match the model.
Question 3: Represent the situation on the number line by moving the point.
Use the sliders to model the following: It’s 5º and I want to turn the temperature down 3º. What is the new temperature?
Write an addition equation to match the model.
Question 4: Represent the situation on the number line by moving the point.
Use the sliders to model the following: It’s -5º and I want to turn the temperature up 3º. What is the new temperature?
Write an addition equation to match the model.
Question 5
Looking at the patterns from the previous work, can you predict if the answer to the following problem will be positive or negative? Why? It’s -6º and I want to turn the temperature up 5º. What is the new temperature?
Now, use the sliders to model the following: It’s -6º and I want to turn the temperature up 5º. What is the new temperature?
Write an addition equation to match the model. Was your prediction correct?