Variables as Unknowns
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Objective
I can use a letter to represent a missing number in a math problem.
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
What is a variable in math, and what do we usually use to represent it?
Explain in your own words why we use letters to represent numbers in math problems.
Part 3 of 3
Exit ticket
Quick comprehension check
“What number does the letter n represent in the equation n + 3 = 8? What number does the letter x represent in the equation 12 - x = 5? ”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
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