Living School · Chapter 2
Neft City: Water Watch
Neft City is in a water shortage. The mayor needs your team to study how much water each household uses and recommend a fair plan. 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! Neft City has a water shortage. We collected the weekly water use (in gallons) from 15 households. Your job: analyze the data and tell us a fair way to save water.
🎯 Your Mission Goals
- 1 Sort the data from least to greatest.
- 2 Find the mean, median, mode, and range.
- 3 Build a histogram (bar graph) of the water use.
- 4 Find the outlier and decide which measure is fair.
- 5 Recommend a policy and explain it with evidence.
New word? Tap a blue word to see what it means:
🔬 Data Lab
Here are the 15 weekly water totals (in gallons). Click the numbers in order from least to greatest to sort them.
Step 1 · Sort the data
Click a number to place it in line. Click a placed number to send it back.
Numbers to sort
Sorted line (least → greatest)
Step 2 · Find the values 🔒 Locked
Use the formula cards to help you. After two tries you'll get a hint.
📊 Build the Histogram
Count how many households fall in each interval. Use + and − (or click a bar) to set each bar's height.
Interpret your graph 🔒 Locked
🗳️ Decision Room
City Council
What conservation policy should Neft City set? Choose one recommendation, then explain it with evidence from your data.
Explain with evidence
Use at least two pieces of evidence from your data and graph. (At least 18 words.)
0 words
🌆 City Reaction
City Status
💧 Why the mean and median disagree
One mansion used 120 gallons — an outlier. It pulls the mean up, but the median stays near what most households actually use.
Mean (average)
43
Pulled up by the mansion
Median (middle)
38
Closer to a typical home
The median (38) best represents the TYPICAL household. A fair target works with the few extreme users.
📰 Neft City News
Write a short public report: 3–5 sentences about the water shortage, what the data showed, and what Neft City should do next. (At least 35 words.)
Word bank — tap to add
Sentence frames — tap to add
0 words
📋 Read my report checklist
🪪 Proof-of-Learning Passport
Neft City · Living School
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Mission: Water Watch — The Conservation Plan — Completed
Skills demonstrated
City Outcome: —