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Past papers marked the way a real examiner marks — against the official Cambridge scheme.

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IB Computer Science SL Paper 1 May 2021 — MarkScheme

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Computer Science SL
Paper 1 · May 2021

IB · Sciences · SL

IB Computer Science SL Paper 1 — May 2021

Sit the question paper first, then open the mark scheme.

Paper 1 All Computer Science papers

November 2020 November 2021

Keys: 1 question paper, 2 mark scheme, 3 both, f focus, [ older sitting, ] newer sitting.

Opening the paper

Paper 1 in other sessions

November 2023
November 2022
May 2022

How to use this paper

Clear a timed slot and sit Paper 1 without the mark scheme.
Open the mark scheme only after you have finished, and mark exactly what you wrote.
List the marks you dropped, then take another Computer Science Paper 1 from the sessions below.
Get a response marked against the IB criteria when you want a second reading.

Frequently asked questions

Where is the IB Computer Science SL Paper 1 May 2021 mark scheme?: It is on this page, next to the question paper. Choose Mark scheme, or Both, then mark your own answers against it.
Which timezone is the May 2021 Computer Science Paper 1?: This paper has no timezone split. November sessions are often a single paper.
How should I revise with this Computer Science paper?: Sit Paper 1 under timed conditions before you open the mark scheme. Record every mark you dropped, then take the next sitting of the same paper.

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