Living School · Chapter 3
Neft City: Food Truck Face-Off
The Neft City Fair is here! Two taco trucks want to sell at the fair. The mayor needs your team to use ratios and unit rate to find the better value and set a fair price. Are you ready to help?
We use this on your final report.
Add your name and pick a role to begin.
🏛️ Mission Briefing
Mayor Reyes
Welcome to the team! Two taco trucks want to sell at the Neft City Fair. Taco Town sells 3 tacos for $6. Salsa Stop sells 5 tacos for $8. Your job: find the unit rate (price per taco), decide the better value, and recommend a fair price.
🎯 Your Mission Goals
- 1 Find the unit rate (price per taco) for each truck.
- 2 Build a ratio table and a double number line for Salsa Stop.
- 3 Decide which truck is the better value.
- 4 Recommend a fair price for the fair.
- 5 Explain your decision using evidence.
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🔬 Price Lab
Each truck sells tacos in a bundle. To compare them fairly, find the unit rate — the price for one taco.
Taco Town
3 tacos for $6
Salsa Stop
5 tacos for $8
Step 1 · Find each unit rate
Unit rate = total dollars ÷ number of tacos. After two tries you'll get a hint.
📏 Double Number Line
Salsa Stop charges $1.60 per taco. Set the dollars under each taco mark using + and − (or type a value), then check.
Step 1 · Complete the ratio table (Salsa Stop)
Fill in the missing dollar amounts. Each taco costs $1.60.
Step 2 · Build the double number line 🔒 Locked
Top line shows tacos. Set the dollars on the bottom line under each taco mark.
Interpret your rates 🔒 Locked
🗳️ Decision Room
City Council
Which truck should Neft City recommend for the best value? Choose one recommendation, then explain it with evidence from your rates.
Explain with evidence
Use the unit rates as evidence and name a fair price. (At least 18 words.)
0 words
🌆 City Reaction
City Status
🔬 Enrichment Challenge: Scale It Up (optional)
A school group wants to buy 25 tacos from each truck. Use the unit rates to find the total cost for each truck — then see how much the city saves.
Which truck is the better deal for 25 tacos, and by how much?
Why does the lower unit rate always save more as you buy more? (1 sentence)
📰 Neft City News
Write a short public report: 3–5 sentences about the two trucks, what the unit rates showed, and which truck the city should recommend. (At least 35 words.)
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Sentence frames — tap to add
0 words
📋 Read my report checklist
🪪 Proof-of-Learning Passport
Neft City · Living School
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Mission: Food Truck Face-Off at the Fair — Completed
Skills demonstrated
City Outcome: —