Otterclue
Singapore
Curriculum
Singapore (English)한국 교육과정 (한국어)Maths your child asks for.
Detective cases matched to your child's school level, for P1-P4. Your child solves real maths to crack each one: building block towers, cutting fair shares, turning clock hands, sharing out jewels.
A growing library of cases, with new ones for every level on the way.
Start a caseCases to play now
No sign-up needed. About 20 minutes each, on a phone or tablet.
- ★ Special Case
The Case of the Block Tower Code
Seeing cube towers from the front and side, counting blocks
Spatial thinking beyond the school syllabus
Play - Fractions · P2-P4
The Case of the Fair Shares
Equal parts, numerator and denominator, fractions of a set
Play - Time · P1-P3
The Case of the Gold Pocket Watch
Reading clocks, setting the hands, elapsed time
Play - Division · P1-P3
The Case of the Missing Remainders
Sharing equally, grouping, remainders
Play
How a case works
- Your child makes a detective badge and gets a letter from the Otterclue detectives.
- They solve three small cases with their hands: tapping, cutting, dragging. Each one hands over a clue.
- The clues crack the final puzzle. Your child earns a medal and a certificate.
- You see today's record: how long it took and where it got tricky.
What we promise parents
- Every puzzle is checked by code. Each one has exactly one right answer, so your child never gets stuck on a broken question.
- No ads, no chat, no in-game purchases.
- Your child's name stays on your device. We keep only what we need to show you their progress, and you can delete it any time.
Hear about new cases
An email when new cases are added. Nothing else.