Know precisely what matters this week.

A short clean check-in anchors the evidence; Arclo then picks one most-worth-doing next step for this week.

Free · no sign-up required · Math and Science, P3–P6

Primary 4 · MathematicsSample diagnostic snapshot

Clean items

Strong

Evidence tier

Weekly focus

Built on real measurement science

IRT

Rasch 1PL ability model

MOE

2026 syllabus aligned

5×4

Cognitive × domain matrix

CAT

Computer-adaptive testing

Sample Evidence Audit

Tan Wei Ming

P4 · Mathematics · 12 April 2026

The finding

Tan Wei Ming has a clear measured pattern: calculation is stable while modelling needs this week's focus.

Clean items read

Strong

Evidence tier

Weekly focus

Capability evidence

Calculation

Concept Understanding

Translation

Modeling

Reasoning

Evidence snapshot

Sample checkpoint view: useful for planning, not a national ranking.

“We do not produce more work. We produce a clearer next step.”

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