DETECTIVE SIGMA

CASE FILE 001 · NOW OPEN

Turn screen time into detective time.

Handcrafted mystery cases for P4–P6 — Math, Science and reading, hidden inside the fun.

Watch the case unfold
  • P4–P6 aligned
  • Ad-free
  • Safe for kids
Detective Sigma case file cover art for the Chapter 1 classroom mysteryCase 001
Illustrated character portrait of a suspect from a Detective Sigma caseSuspect 01

FOLLOW CASE 001

A complete mystery, revealed step by step.

Scroll to follow one real case from first clue to final accusation — every step your child takes is P4–P6 Math, Science and reading practice in disguise.

  1. Exhibit 01 · Briefing
    01 / 05Briefing

    Open the case

    Start with a clear hook and a reason to investigate.

  2. Exhibit 02 · Suspects
    02 / 05Suspects

    Meet the cast

    Characters give reading and comprehension a purpose.

  3. Exhibit 03 · Evidence
    03 / 05Evidence

    Inspect the scene

    Real case art and clue photos carry the visual story.

  4. Exhibit 04 · Learning
    04 / 05Learning

    Hide practice in play

    Math, Science, and reasoning sit inside the case flow.

  5. CASE CLOSED
    Exhibit 05 · Deduction
    05 / 05Deduction

    Make the accusation

    The final proof gives the learning a payoff.

PRACTICE IN DISGUISE

Every clue is a real question.

Interrogations, evidence, deductions — each one P4–P6 Math, Science or reading.

01

Critical thinking

Connect clues. Draw conclusions.

02

Math & Science

PSLE-style reasoning inside the mystery.

03

Reading

Careful reading is how you win.

04

Confidence & grit

A story worth finishing builds focus.

SEE IT IN ACTION

A real case, start to finish.

Suspect portrait: Jack, a classmate in the Chapter 1 mystery
Suspect portrait: Ryan, a classmate in the Chapter 1 mystery
Suspect portrait: Janet, a classmate in the Chapter 1 mystery

THE SUSPECTS

Interrogate the cast

Read carefully. Weigh every word. Spot the contradiction.

Close-up of a school desk covered in scribbled clues during an investigation

THE EVIDENCE

Examine every clue

Zoom in, collect, reason it out — each clue is a real P4–P6 objective.

A classroom whiteboard used to connect clues and crack the case

THE BREAKTHROUGH

Crack the case

Pin the evidence. Follow the logic. Make the accusation.

TRUSTED BY FAMILIES

Built to earn a parent’s trust.

“My daughter stayed with the Math because she wanted to know what happened next.”
— Founding Parent, P5 student
“The case format gives students a reason to discuss their reasoning instead of just checking answers.”
— Primary Math Teacher, Pilot School
“I didn’t even notice it was Math. I was just trying to catch the thief.”
— Student, P4
MOE curriculum aligned
Ad-free. No stranger chat.
Progress parents can read
P4–P6
Singapore primary tracks
10
Math & Science strands
3
Parent · student · teacher paths

BUILT FOR YOUR WHOLE TEAM

One platform. Three kinds of detective.

Learning your child actually asks for

Set up an account, let your child open the first case, and follow readable progress signals — no raw activity logs to decode.

  • MOE-aligned case practice
  • Clear progress visibility
  • Safe and ad-free by design

QUESTIONS, ANSWERED

Everything a parent or teacher asks.

Detective Sigma wraps practice inside structured investigations, so the reason to keep going is the case itself — not just points or drills.

THE CASE IS WAITING

Your next detective is ready. Are you?

Open case 001 free — and see why kids forget they are even learning.

  • Free to start
  • P4–P6 Math & Science
  • No ads or stranger chat