IB Spanish10 min read · July 2026

IB Spanish Written Assignment: The Complete Guide to Scoring Full Marks

The Written Assignment is 25% of your IB Spanish B HL grade. Here's everything: how it's structured, what the four criteria are testing, the most common mark-losing mistakes, and a step-by-step approach that produces high-scoring responses.

HL only — SL candidates read too

The Written Assignment is a Higher Level component only (25% of HL final grade). SL candidates do not submit a Written Assignment — but the writing strategies in this guide apply directly to SL Paper 2 (Written productive skills). For the full IB Spanish B structure, see our IB Spanish complete guide →

What the Written Assignment Is

The IB Spanish B HL Written Assignment is a 500-word creative writing piece produced in response to three literary works read in class. It is submitted as part of your internal assessment and moderated externally. You have significant freedom in choosing the text type and angle — but that freedom is a double-edged sword: most marks are lost through poor task choice rather than weak writing.

ComponentDetail
Word count500 words (not including the rationale)
Rationale100 words explaining your choices
Text typeYour choice — letter, diary, interview, speech, article, etc.
SourceMust be clearly connected to one or more of the three literary works
Weight25% of HL final grade (submitted for moderation)

The Four Assessment Criteria

Criterion A — Language (10 marks)

Vocabulary range and accuracy, grammatical complexity and accuracy, register and style appropriate to the chosen text type. This is the largest criterion and where strong vocabulary pays off most directly.

9–10Excellent — wide, varied, and precise vocabulary; complex structures used accurately; register perfectly matched to text type
7–8Good — varied vocabulary with minor inaccuracies; mostly complex structures; register generally appropriate
5–6Satisfactory — adequate vocabulary; some complex structures attempted; register partially appropriate
3–4Limited — restricted vocabulary; simple structures; inconsistent register
1–2Rudimentary — very limited vocabulary; predominantly inaccurate; little sense of register

Criterion B — Content (10 marks)

How effectively you engage with the source literary work(s). Examiners want to see genuine textual understanding — not a plot summary but an exploration of themes, characters, or ideas. The best Written Assignments choose an angle that allows subtle literary insight through a creative form.

Criterion C — Format (5 marks)

Whether the text type conventions are used correctly and effectively. A diary entry must read like a diary entry. A letter must follow letter format. This is five "free" marks that many candidates waste by choosing an unfamiliar text type.

Criterion D — Rationale (5 marks)

Your 100-word explanation of why you chose this text type and angle, and how it connects to the literary works. The rationale is marked separately — it must be precise, specific, and show that your choices were deliberate rather than accidental.

Choosing the Right Text Type

The most common mistake: choosing a text type that is hard to sustain for 500 words without exhausting its conventions. A diary entry is structurally simple but becomes repetitive. An interview is dynamic but requires writing convincingly for two voices. An article or opinion column is the safest choice for most candidates because it allows extensive argument, connectors, and vocabulary range without tight format constraints.

Text typeConvention difficultyVocabulary range opportunityRecommended for
Opinion article / columnLowVery highMost candidates — especially strong writers
Formal letterMediumHighCandidates with clear argument to make
InterviewMediumHighCandidates confident in character voice
Diary entryLowMediumReflective, character-focused response
SpeechMediumVery highCandidates who can write for rhetorical effect
News reportHighMediumOnly if very familiar with the format

Register is the most-penalised criterion gap

In the IB Subject Reports for Spanish B, examiners consistently note that candidates who mix formal and informal register within a piece lose Criterion A marks they could have kept with minimal awareness. Before submitting, read your piece aloud and flag every sentence that sounds out of register. The Lingaso Writing Analyser checks register consistency alongside CEFR vocabulary level.

A Step-by-Step Writing Process

Step 1: Choose your angle before your text type

Start with the literary theme or idea you want to explore — not the format. "I want to explore how the protagonist's identity changes after migration" is an angle. From that angle, the best text type will become obvious (possibly a letter from a character to a relative back home).

Step 2: Draft the rationale first

Writing the 100-word rationale before you write the main piece forces you to articulate your choices clearly. If you can't write a clear rationale, your angle is likely too vague to produce a focused 500-word piece.

Step 3: Write a 600-word draft, then cut to 500

The word limit is strict. Writing 20% over and then cutting forces you to prioritise — the strongest vocabulary and clearest ideas survive, weaker filler disappears. This consistently produces tighter, higher-scoring pieces than writing exactly to length.

Step 4: Check vocabulary range explicitly

Scan your 500 words for frequency vocabulary. If you've used hablar three times, replace two with debatir, destacar, or señalar. If your adjectives are all A1 words (bueno, malo, grande), upgrade them. This targeted substitution is the fastest way to improve Criterion A from 6 to 8.

FAQ

Can I write the Written Assignment in any Spanish variety?

Yes. IB does not mandate Peninsular or Latin American Spanish. Consistency within your piece matters — don't mix varieties, as this creates register inconsistency that penalises Criterion A.

Does the 500-word count include the rationale?

No. The rationale has its own 100-word limit and is assessed under Criterion D separately from the main 500-word piece.

Can I use the same literary work for multiple IB assessments?

You may not use the same literary work in both the Written Assignment and Paper 2 for your written response. Check your school's guidelines — teachers typically coordinate this to prevent overlap.

What happens if I exceed 500 words?

Examiners are instructed to stop reading at 500 words. Content or language excellence beyond that limit is not assessed. Write to exactly 500 or slightly under.

Criterion A is won on vocabulary — build it now.

Lingaso organises 2,799 Spanish words by IB topic area and CEFR level. The Writing Analyser checks your vocabulary range before submission.

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