Variables Represent Unknowns
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Objective
I can explain that a variable, like a letter or a shape, is used to represent an unknown number in a real-world problem, such as calculating the total cost when the price of each item is unknown.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
Explain in your own words what a variable is and why we use them in math problems.
Give an example of a real-world situation where you might use a variable to represent an unknown number.
Part 3 of 3
Exit ticket
Quick comprehension check
“Maria is buying cookies for a party. She knows she needs 5 cookies per person but doesn't know how many people are coming. If she uses the variable 'p' to represent the number of people, what does 'p' stand for in this situation? David is saving money to buy a new bicycle. He earns the same amount each week, but he doesn't know how much. If he uses the variable 'w' to represent how much he earns each week, what does 'w' stand for in this situation?”
Sample answer included in the free materials
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