BrainQuest Island

Math Mountain · Ages 8–10

Data Detectives

Short cases solved with evidence: graphs, tables and small chance experiments. The game teaches children to say only what the data show, and sometimes the right answer is “We cannot tell from these data.”

  • Math
  • Ages 8–10
  • Works offline
  • Instructions read aloud
Join the TestFlight beta All 28 games
Cases
30, about 7 minutes each
Labs
5, opened with stars
Data
All made up, and labelled so

How it plays

What your child does

  1. Each case starts with a question, like “Which fruit should we bring most of to the picnic?”
  2. Your child answers two to four small questions about the evidence, then chooses what the data show.
  3. To build a graph, they drag each bar or tap + and − until it matches the table.
  4. In chance experiments they predict first, collect a sample and watch a tally grow, then compare.

Five labs

Read It

Picture graphs, bar graphs, line plots and line graphs.

Build It

Make a graph from a table.

Compare It

Two groups side by side, and whether a comparison is fair.

Chance Lab

Spinners, a number cube and bags of cubes.

Context Matters

Scales that do not start at zero, tiny surveys, and charts missing a key fact.

For grown-ups

Good to know

  • Every graph has a Table button and a spoken description. Groups differ by pattern as well as colour, so it works for colour-blind children.
  • There is no betting, money or prize anywhere in the chance activities.
  • Children are never asked about themselves, their family or their home.
  • The home screen shows Data Detectives to children aged 8 to 10. You can turn it on for any child in the Parent Zone.
  • The game saves itself, so your child can stop at any time and pick up where they left off.

What you can set in the Parent Zone How the app handles your child’s data

Pairs well with

Market Day

Read last time’s graph to plan how much to bring.

MathAges 8–10

Fact Finder

Weigh evidence for claims, not just numbers.

ReadingAges 9–10

More in Math

All math games

Number Quest

Cast spells at friendly creatures by solving sums.

MathAges 7–10

Fraction Forge

Fractions with pieces first, numbers later.

MathAges 8–10

Scribble Math

Write the answer by hand, with a finger or Apple Pencil.

MathAges 7–10

Clock & Coins

Telling time, counting money, measuring things.

MathAges 7–9

Shape Shipyard

Build ships from shapes and learn geometry on the way.

MathAges 7–10

Try Data Detectives with your family

It comes with every other game on the island. Join the TestFlight beta, play for a week, and tell us what your child thought.

Join the TestFlight beta