Students learn to find a unit rate — the price for just one item — by dividing, so they can compare deals and answer the everyday question: which is the better buy?
Students will be able to…
One store sells 3 apples for $6, another sells 4 for $10. Which is the better deal — and how can you compare them fairly?
Project this and set the price and amount for two options. The tool finds the unit rate (price each) and shows the better buy!
Tap any phase to open the teacher moves and student actions.
3 for $6 or 4 for $10 — which is the better deal?
Teacher models.
Class drives Better Buy.
Students find unit rates.
One unit rate.
Aligned to the Common Core State Standards for Mathematics, including the Standards for Mathematical Practice.
Understand the concept of a unit rate associated with a ratio.
Solve unit rate problems including unit pricing and constant speed.
Use ratio and rate reasoning to solve problems.
Model with mathematics using rates.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students bring two real prices for the same item in different sizes and find which is the better buy by unit price. A printable better-buy sheet is in the Math library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.