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Misleading Chart Lab cover art, a math game for Grades 6–8 20 free levels

Mathematics · Number Peaks

Misleading Chart Lab

Catch charts that tell the truth in a misleading way.

Grades
6–8
Levels
48 in 2 tracks
Free
20 levels
Session
5–15 minutes

What it is

A media lab for chart skeptics. Each case shows a chart built from fictional data that may use a truncated axis, uneven scale steps, a cherry-picked date range, 3D distortion or missing labels — or may be perfectly fair. Analysts name every problem, test headlines against the actual numbers and choose the fair redraw.

What children learn

Data and media literacy: how axis baselines, scale intervals, selected ranges, 3D effects and missing labels change impressions; separating what the numbers show from what the picture suggests; and checking numeric claims such as "more than twice as many" against the data.

What it teaches

  • Choose fair charts and judge claims
  • Evaluate charts and claims
  • Read graphs

How to play

Toggle reasons on and off with the buttons (or drag reason cards onto the evidence board), then press Check. Pick the fair redraw or a verdict with the answer buttons. Show table opens the chart's data. Everything works with Tab, Enter and Space.

Plays with: Touch Mouse Keyboard

Accessibility

  • Read-aloud on request
  • Fully playable with a keyboard
  • Calm mode with reduced motion
  • No timers or time pressure
  • Never relies on color alone
  • Quiet mode turns off sound effects

Level maps

Tracks and levels

Each track is made for a grade range. Start anywhere that fits — you don't have to play the younger tracks first. As a guest, your stars are saved on this device.

Chart Check-Up

One flaw at a time, fair charts, then two flaws at once — and the fair redraw.
6–7 24 levels · 10 free

Chart Check-Up

One flaw at a time, fair charts, then two flaws at once — and the fair redraw. · 6–7

Levels 1–10 free
  1. 1 First Look 1 ☆☆☆
  2. 2 First Look 2 ☆☆☆
  3. 3 First Look 3 ☆☆☆
  4. 4 First Look 4 ☆☆☆
  5. 5 First Look 5 ☆☆☆
  6. 6 Challenge: First Look ☆☆☆
  7. 7 Second Look 1 ☆☆☆
  8. 8 Second Look 2 ☆☆☆
  9. 9 Second Look 3 ☆☆☆
  10. 10 Second Look 4 ☆☆☆
  11. 11 Second Look 5 Plan level
  12. 12 Challenge: Second Look Plan level
  13. 13 Fair or Not? 1 Plan level
  14. 14 Fair or Not? 2 Plan level
  15. 15 Fair or Not? 3 Plan level
  16. 16 Fair or Not? 4 Plan level
  17. 17 Fair or Not? 5 Plan level
  18. 18 Challenge: Fair or Not? Plan level
  19. 19 Double Trouble 1 Plan level
  20. 20 Double Trouble 2 Plan level
  21. 21 Double Trouble 3 Plan level
  22. 22 Double Trouble 4 Plan level
  23. 23 Double Trouble 5 Plan level
  24. 24 Challenge: Double Trouble Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Chart Check-Up

Claim Court

Headlines meet charts: name the flaws, test the claim against the data and pick a fair redraw.
7–8 24 levels · 10 free

Claim Court

Headlines meet charts: name the flaws, test the claim against the data and pick a fair redraw. · 7–8

Levels 1–10 free
  1. 1 Headline Check 1 ☆☆☆
  2. 2 Headline Check 2 ☆☆☆
  3. 3 Headline Check 3 ☆☆☆
  4. 4 Headline Check 4 ☆☆☆
  5. 5 Headline Check 5 ☆☆☆
  6. 6 Challenge: Headline Check ☆☆☆
  7. 7 Second Opinion 1 ☆☆☆
  8. 8 Second Opinion 2 ☆☆☆
  9. 9 Second Opinion 3 ☆☆☆
  10. 10 Second Opinion 4 ☆☆☆
  11. 11 Second Opinion 5 Plan level
  12. 12 Challenge: Second Opinion Plan level
  13. 13 Close Reading 1 Plan level
  14. 14 Close Reading 2 Plan level
  15. 15 Close Reading 3 Plan level
  16. 16 Close Reading 4 Plan level
  17. 17 Close Reading 5 Plan level
  18. 18 Challenge: Close Reading Plan level
  19. 19 Final Verdict 1 Plan level
  20. 20 Final Verdict 2 Plan level
  21. 21 Final Verdict 3 Plan level
  22. 22 Final Verdict 4 Plan level
  23. 23 Final Verdict 5 Plan level
  24. 24 Challenge: Final Verdict Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Claim Court

More from Number Peaks

Other mathematics games, each with its own free levels.