Real-World to Algebraic Expressions
Grade 6 Mathematics Translating Words into Mathematical Language Common Core Standard 6.EE.6
What is a Variable?
A letter that represents an unknown number Can stand for any number in a problem Common variables: x, y, n, t Variables help us write math expressions
Think About This...
Sally has 5 apples. She buys some more apples. What don't we know? How can we represent the unknown amount?
From Words to Expressions
Sally has 5 apples + some more Let x = the number of apples she buys Expression: 5 + x This shows Sally's total apples
Your Turn: Match the Expressions
Work with a partner Match scenario cards with expression cards Explain your reasoning Use complete sentences
More Real-World Examples
{"left":"Tom runs 3 miles every day for d days\nA book costs $7, buying n books\nAnna had 20 dollars and spent s dollars","right":"Expression: 3d\nExpression: 7n\nExpression: 20 - s"}
Create Your Own!
Write 3 original real-world situations Create the matching algebraic expressions Use different operations: +, -, ×, ÷ Share with the class
Key Takeaways
Variables represent unknown quantities Real-world problems can become expressions Choose operations based on the situation Practice helps build algebraic thinking