Variables as Unknowns
Grade 4•45 minutes•5.PFA.2 The student will investigate and use variables in contextual problems.
Learning Objective
I can use a letter to represent a missing number in a math problem.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. What is a variable in math, and what do we usually use to represent it?
2. Explain in your own words why we use letters to represent numbers in math problems.
3. Give an example of a situation where the value of a variable might change.
...and 4 more questions
Educational Video
What is a Variable? | Variables in Math Introduction | Algebra
Math with Mr. J