When the clock starts, IB Language B writing can feel like trying to think in two languages at once. Your ideas are there. Your vocabulary exists. But under pressure, small choices snowball into lost marks: a too-formal greeting, a sentence that never ends, a “fancy” word used slightly wrong.
This guide is a calm reset. We’ll walk through the mistakes that show up most in IB Language B writing and the habits that quietly fix them. Along the way, you’ll see how RevisionDojo turns practice into a system: Study Notes, Flashcards, AI Chat, Grading tools, Questionbank, Predicted Papers, Mock Exams, a Coursework Library, and Tutors when you want real feedback.
A quick checklist before you write (save this)
Use this 30-second checklist every time you practice IB Language B writing:
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Do I know the text type and its required layout?
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Have I set the audience, purpose, and register (formal/semi-formal/personal)?
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Do I have a 3-part plan (intro, body points, closing)?
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Am I using high-yield phrases I can control, not random “impressive” words?
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Did I leave 2--3 minutes to proofread for my personal error patterns?
For a deeper strategy map, keep this open: IB Language B exams format, timing, and strategy.
The most common IB Language B writing mistakes (and fixes)
Vocabulary overload: sounding advanced but unclear
Students often treat IB Language B writing like a vocabulary audition. The problem is that one misused “advanced” word can damage clarity and tone across a whole paragraph.
Fix: Build a small “power set” of words and phrases you can use correctly every time. Learn them in sentences, not lists. RevisionDojo’s guide on common problems in Language B and how to overcome them reinforces this idea: range matters, but control wins.
Use RevisionDojo Flashcards to store phrases by theme and text type, then test them with quick recall instead of rereading.
Grammar confusion: trying to use every tense in one response
Under stress, it’s tempting to stack structures: conditionals, complex clauses, fancy connectors. In IB Language B, that often creates agreement errors, tense switching, and sentences that collapse halfway through.
Fix: Choose one “feature” to showcase per task (for example: consistent past narration, or a clean conditional). Then keep the rest simple and accurate. If you want a revision routine that balances skills, use How to effectively revise for Language B exams as your weekly blueprint.
RevisionDojo’s AI Chat is perfect here: paste a paragraph and ask, “Find my top 3 grammar patterns that lose marks and give me corrected versions.”
Weak structure: a good idea with no clear path
Markers love writing that is easy to follow. Many IB Language B responses lose marks not because ideas are bad, but because the paragraphing is unclear or the ending feels rushed.
Fix: Use a repeatable frame:
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Opening: context + purpose + direct link to the prompt
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Body: 2--3 paragraphs, each with one point and one example
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Closing: wrap-up + call to action / reflection (depending on text type)
If you take English B, RevisionDojo’s IB English B Paper 1 hub helps you rehearse formats. Pair it with notes on format and timing so your planning stays fast.
Register mistakes: writing a complaint like a diary (or vice versa)
Register is where many students quietly drop marks in IB Language B writing: greetings, sign-offs, pronouns, contractions, and how direct your requests are.
Fix: Memorize three “default voices” (formal, semi-formal, personal). Then drill them until the openings and closings are automatic. If you need theme language to match tasks, RevisionDojo’s topic notes like Language and identity and Human rights, peace and equality help you sound relevant, not generic.
Skipping the final scan (the easiest marks you’ll ever earn)
The last 2 minutes can rescue an entire response: verb endings, agreement, punctuation, repeated words, missing accents, or a greeting that doesn’t match the text type.
Fix: Keep a personal “error shortlist” of 5 items and scan only for those. For revision habits that prevent repeat mistakes across subjects, read Common mistakes to avoid during IB revision.
RevisionDojo’s Grading tools can also turn your practice into feedback you can act on immediately, so each draft becomes a cleaner second draft.
Write cleaner, score higher with RevisionDojo
The quiet truth about IB Language B writing is that marks usually aren’t lost on “big ideas.” They’re lost in small, repeatable mistakes: uncontrolled vocabulary, unstable grammar, unclear structure, and mismatched register.
Turn practice into a system. Use RevisionDojo’s Study Notes to see what good looks like, Flashcards to lock in high-yield language, Questionbank to practice under exam conditions, AI Chat and Grading tools to get fast feedback, and Mock Exams and Predicted Papers to rehearse decisions under time pressure. If you want extra support, the Coursework Library and Tutors keep you moving when motivation dips.
If you’re aiming for a calmer, higher-scoring IB Language B writing routine, start with the RevisionDojo IB Language B collection: All IB Language B posts.