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The IB Language B Individual Oral (IO) is a key internal assessment in any Language B course (e.g. English B, French B, Spanish B, German B, etc.). It allows students to demonstrate their ability to communicate in the target language through analysis, personal response, and discussion. Understanding the assessment criteria and preparing with a clear checklist can help you deliver a confident presentation. This post will outline the IB Language B IO criteria as well as provide a suggested checklist of what to prepare.
IB Language B IO Criteria and Checklist
The Language B IO is graded out of a total of 30 points, as per the following criteria.
Criterion A: Language – 12 points
This criterion assesses the ability to use the target language (e.g. English, French, Spanish, German, etc.) accurately and fluently throughout the IO. It tests knowledge of grammar, vocabulary, pronunciation, intonation and coherence. Students are expected to express ideas clearly using a range of sentence structures and vocabulary suited to the topic. At HL, students should also include varied tenses, idiomatic expressions, and smooth transitions between ideas. Minor errors are acceptable as long as they do not interfere with the effective communication of ideas. Pronunciation and intonation should sound natural instead of being memorized from a script. When speaking, students should have a steady, confident pace without rushing, hesitating or using filler words. Students must communicate with ease and precision, showing proficiency in the target language.
For a maximum of 12 points:
Use a variety of basic (e.g. present tense, past tense) and complex (e.g. passive voice, conditional tense) grammatical structures.
Maintain accurate grammar, such as keeping the appropriate gender/number agreement (e.g. el hombre, las mujeres).
Speak fluently, minimizing long pauses and filler words.
Pronounce words clearly and naturally, with the correct intonation.
Use linking phrases to connect ideas and ensure a smooth transition.
Avoid repeating the same words or phrases multiple times. Use a varied vocabulary, including idiomatic expressions and topic-specific phrases or keywords.
Show the ability to paraphrase or rephrase if you forget a particular word.
Demonstrate that you can speak the language spontaneously, not just from memorized sentences.
Criterion B: Message – 12 points
Criterion B evaluates the depth, relevance, and development of the ideas communicated by students. Students are evaluated on how well they construct meaning through expressing opinions, interpreting the stimulus or extract, and connecting their ideas to the overall Language B course themes and target culture. Criterion B is split into 2 parts – B1 (Visual Stimulus) and B2 (Conversation).
Criterion B1: Visual Stimulus - 6 points
Criterion B1 focuses on the first part of the IO, which is a verbal response based on a visual stimulus (SL) or a literary extract (HL). Students are assessed on their ability to engage with the visual stimulus or literary extract beyond simple description, and how well they can link it to the target culture. Examiners look for insightful commentary that links cultural, social, or thematic elements to what has been studied throughout the Language B course.
For a maximum of 6 points:
Identify the main theme the stimulus relates to (e.g., Identities, Experiences).
Analyze and interpret the meaning behind the stimulus – provide descriptions as well as personal interpretations.
Make connections between the target culture, stimulus and course themes (e.g. How does this reflect cultural values, issues, or traditions?)
Share personal reactions and reflections to show engagement with the stimulus.
Provide specific details from the stimulus to support your interpretations (e.g., objects, people, colours, actions).
Show critical thinking by discussing implications, symbolism, or potential alternative interpretations.
Criterion B2: Conversation - 6 points
Criterion B2 focuses on the second and third parts of the IO, which are more discussion-based rather than descriptive. Students are assessed on responding thoughtfully to questions, expanding on ideas, and offering personal viewpoints supported by examples. Strong candidates show critical thinking, awareness of cultural context, and can express their views coherently, not just by using memorized facts.
For a maximum of 6 points:
Respond fully and directly to all questions asked by the examiner.
Ensure all responses are appropriate and developed in relation to the questions posed.
Extend answers with examples, explanations, or comparisons.
Connect the discussion to themes from the syllabus.
Demonstrate critical thinking by comparing perspectives, analyzing consequences, or questioning assumptions.
Build on previous ideas by connecting follow-up answers to earlier points.
Ensure responses are broad in scope and depth, including personal interpretations of the questions.
Criterion C: Interactive Skills (Communication) – 6 points
Criterion C tests the ability to engage naturally and actively in conversation. It assesses how well students listen, respond, and maintain dialogue with the examiner. Students must contribute to a flowing exchange of ideas rather than simply answering questions. Examples of this include responding appropriately to follow-up questions, clarifying doubts when necessary, or asking questions back to the examiner to keep the conversation going. Students should demonstrate language proficiency through relevant, well-developed replies that connect back to the main Language B themes.
For a maximum of 6 points:
Listen carefully and attentively to the examiner’s questions.
Attempt to engage in discussion with the examiner rather than just answering questions (e.g. ask the examiner follow-up questions similar to what would be done in a natural discussion or conversation).
Extend answers with reasons, examples, and reflections.
Ask follow-up questions or clarifications when appropriate.
Maintain a natural pace when speaking.
Show initiative by actively contributing ideas; don’t just wait to be asked questions by the examiner.
React to the examiner’s comments by acknowledging and building upon them.
We hope you found this post helpful in learning more about the IB Language B IO criteria . For more useful materials associated with the IB, check out the wide variety of IA, EE and TOK exemplars available at Clastify and other guides available on our blog.
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