Spark & Anvil Privacy
DataForge — a data-science workshop: a crew tending a data pipeline of colored dots into plain bar and pie charts, no numbers

DataForge

Meet the data crew — Catch, Tidy, Graph, Tell, and Guard — who each keep one step of the data pipeline, from where data comes from to using it fairly. Then work with data yourself.

Build a pipeline Test a hypothesis
Level 1

Start here

Pipeline Studio Chain blocks — filter, sort, group, chart — over a small dataset you can tidy and chart, and watch the story appear. Which Average? Predict the mean of a dataset — then watch it balance on a dot plot. Don’t get caught reporting the median, mode, or midrange. Causation Detective Two things go up together — but does one cause the other? A hidden factor, reverse direction, coincidence, or a genuine cause? Data Duel A head-to-head kit round for 2–4 players — one device or an online room by code. Highest first-try score wins.
Brain Break Take a quiet moment between rounds — a fun teaser or a short breather. Brain breaks help you remember what you learn.

Five doors, one pipeline

Data moves through five steps, and each keeper looks after one. Open a door to practise that step.

  1. 1 Where data comes from

    Catch’s door

    Every dataset has a collector, a purpose, and someone it left out.

  2. 2 Cleaning it up

    Tidy’s door

    Every cleaning choice changes what the data means, so write it down.

  3. 3 The shape of the story

    Graph’s door

    Pick the picture that tells the truth, not the loudest one.

  4. 4 What it means

    Tell’s door

    Data shows a pattern. People decide what it means, and how sure to be.

  5. 5 Using it fairly

    Guard’s door

    Ask who benefits, who could be harmed, and whether a claim was checked.

All activities

Practice & play

Mixed Practice Shuffles questions from the kits you’ve played, brought back when they’re ready to review — great for making it stick.

Choose a kit

Each kit is a short round of questions with hints when you need them. Your progress stays on this device.

All 16 kits
Kit 1: Data Types & Collection grades 4-5 · 25 questions Kit 2: Graphs & Charts grades 4-5 · 25 questions Kit 3: Mean, Median & Mode grades 5-6 · 25 questions Kit 4: Probability Basics grades 5-6 · 25 questions Kit 5: Data Distributions grades 5-6 · 25 questions Kit 6: Statistical Questions grades 6-7 · 25 questions Kit 7: Data Analysis grades 6-7 · 25 questions Kit 8: Intro to Coding with Data grades 6-7 · 25 questions Kit 9: Data Cleaning & Preparation grades 6-8 · 25 questions Kit 10: Correlation & Causation grades 6-8 · 25 questions Kit 11: Data Visualization Best Practices grades 6-8 · 25 questions Kit 12: Intro to Machine Learning with Data grades 6-8 · 25 questions Kit 13: Cross-Topic Connections grades 5-6 · 25 questions Kit 14: Real-World Applications grades 6-7 · 25 questions Kit 15: Misconceptions & Reasoning grades 6-7 · 25 questions Kit 16: Advanced Synthesis grades 7-8 · 25 questions

For grown-ups — progress report →A private, on-device snapshot mapped to the skill areas practiced. Export a CSV or print — nothing that names you leaves this device.

More ways to play

Household census Quiz Arena Data Run Plot the Point Poll It 100× Trust the Data Bot? A .300 hitter

Same idea, another world

Something you practice here shows up somewhere else too — that's real learning that travels.

A biased sample skews a statistic the same way skewed data biases an AI model. The shared idea: sampling bias — an unrepresentative sample skews the conclusion (a biased statistic or a biased model) Try AIForge → An unrepresentative sample skews a statistic the same way picking which stories to run slants the news. The shared idea: selection bias — an unrepresentative sample skews a statistic the same way choosing which stories to cover slants the news Try NewsForge →
DataForge mascot

Meet the cast — the characters who teach this

Each one stands for an idea you’ll practice. Tap a character to read their illustrated story and hear their audio drama.

Ensemble stories — the cast together

Explore all the stories →

What next? Pick a door

Chosen from what this app is about. What you open is remembered on this device only.

📚 Books for DataForge

Read the story, print a workbook, or color the cast — free PDFs to read offline or print at home.

Browse all books →

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