ExamEdge generates authentic exam questions, marks every answer, and diagnoses each lost mark as a concept gap, reading load, or answer-format problem — then automatically assigns the drill that fixes that specific cause. Grounded in 15+ years of examiner-report insight.
Free plan includes 3 practice sets a month. No card required.
Explain how a stack is used to manage recursive method calls.
Diagnosis
Concept gap — base_case_omission
A misconception examiners have flagged repeatedly on this topic.
Targeted drill assigned: refutation question on recursion base cases
Weakness matrix · T4 Programming
80%+
of Ren’s students achieve a distinction grade
3
error categories diagnosed on every lost mark
AO1–AO3
command-term aligned, per each board’s own syllabus
1 click
from weak spot to targeted drill
A worksheet tells you the score. ExamEdge closes the loop: every answer feeds a diagnosis, and every diagnosis feeds the next drill.
Original IB CS HL and IGCSE CS questions — MCQ, structured, trace tables and pseudocode — generated to real past-paper patterns and tagged by topic, command term and AO level.
MCQ and trace tables are marked on the spot; structured and pseudocode answers are AI-marked against mark-scheme patterns, with feedback written in examiner language.
Every lost mark is classified: a concept gap, reading load, or answer format. Ambiguous cases get a simplified twin question to pin the cause down empirically.
A weakness matrix tracks every topic × AO cell. Any cell below 65% triggers a targeted drill matched to the diagnosed cause — not just “more questions”.
A score of 2/4 doesn’t tell you what to do next — the reason does. No other platform classifies why the marks went, so no other platform can remediate the actual cause.
The misconception is identified — often one documented in examiner reports for that exact topic — and the drill confronts it head-on with a refutation question.
The concept is understood but the question’s language wasn’t. The drill lowers the reading load without dumbing down the concept — ideal for EAL students.
The knowledge is there but the answer doesn’t look like an exam-board answer. The drill models the correct answer structure for that command term and mark count.
Students practise, teachers see the whole class, parents stay in the loop — all from the same live weakness data.
Practise smarter, not longer
See the whole class at a glance
Stay informed without nagging
Every layer — generation, marking, feedback, remediation — is calibrated to how IB and IGCSE papers are actually set and marked.
Question generation and marking retrieve from a knowledge base built on 15+ years of past papers, mark schemes and examiner reports — so distractors mirror documented student misconceptions.
Not one score — a full grid. Strong on recursion recall but weak on recursion analysis? The matrix knows, and drills route accordingly.
When the cause of a lost mark is ambiguous, a linguistically simplified twin question settles it — same concept, same marks, lower reading load.
Two ladders in the player: “explain more simply” rewords without revealing marks; “hint” reveals progressively. Hinted successes never count as clean mastery.
State, Explain, Construct, Describe — every question is tagged to its board-specific command term and AO level, whether that’s the IB subject guide or the Cambridge IGCSE syllabus, so practice matches how each board’s papers actually ask.
Generate full IB-style papers with authentic section structure and mark allocations, and export practice sets to DOCX for offline use.
Why ExamEdge exists
“After 18 years teaching IB and IGCSE Computer Science, I kept seeing the same thing: students don’t fail because they practise too little — they fail because nobody tells them why the marks went. ExamEdge is the tool I always wanted in my own classroom.”
Ren Hoe Lee — Senior STEM Educator at an international school in Singapore. 18 years teaching IB and IGCSE CS, IBDP CS Cat 2 & Cat 3 workshop certified, CAIE & IBDP Examination Officer, BEng (Hons) Electrical & Electronic Engineering, NTU. Over 80% of his students achieve a distinction grade, with several earning Top in the World in Cambridge IGCSE and A-Level Computer Science, and IBDP students regularly scoring 6s and 7s.
No $10K school contracts required. Start free, upgrade when it earns its keep.
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Try the full loop, no card required.
$9–15per month
Unlimited practice, fully adaptive. IGCSE $9 · IB $15.
$19–29per month
Your whole class, diagnosed. IGCSE $19 · IB $29.
$15per month
Stay informed, and assign practice. Includes one child's seat.
$99per dept/mo
Sized for a real CS department. $499/mo for the whole school, multi-department.
From $4.90per item
Printable mock papers & topic packs — no subscription, no account needed.
Start with three free practice sets. See your first diagnosis in under ten minutes.