Code-Switching and the Crocodile Proverb
Oral assessment day: 18 AS candidates, three minutes each, topic 'Our river is changing.' Kavezeri speaks for 3:10; the rubric allows a 10-second grace. He switches to English 14 times, mostly for 'climate change', 'borehole', 'erosion' and 'government grant'. He uses two proverbs; the second, about a crocodile and a frog, is normally used to criticise a lazy son-in-law, but he applies it to the councillor. The audience laughs, and he pauses, then continues. He keeps eye contact and gestures, but reads from five palm cards and loses his place once. The rubric has four bands and a note: 'Dialect and code-switching should not be penalised unless they impede communication.' The teacher must award marks for content, fluency, appropriateness and audience awareness, and must decide whether the laughter is evidence of engagement or of a rhetorical misfire.
1. How should the 14 English switches be treated in the fluency and appropriateness marks? Distinguish lexical borrowing from discourse code-switching.
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Classify the switches before penalising them. Single-word technical nouns such as 'climate change', 'erosion' and 'government grant' are likely lexical borrowing: Thimbukushu may have no equally precise everyday term, and the speaker is discussing a technical topic. These should not reduce fluency if they are used consistently and do not break the Thimbukushu syntax around them. Appropriateness is also satisfied because a school panel expects technical vocabulary.
Whole phrases or discourse markers used to manage the talk-'you know', 'actually', 'the thing is'-are different. If they replace Thimbukushu connectors and cause hesitation, repair, or loss of syntactic control, they count against fluency. Fourteen switches in three minutes is high, so the teacher should check whether they cluster around technical content or spread through ordinary narration. A cluster is evidence of topic-driven borrowing; a spread suggests discourse-level code-switching.
The rubric note is decisive: do not penalise switching as impurity. Penalise only what impedes communication, such as a switch that forces the speaker to restart a sentence or leaves the audience without a gloss.
2. Was the crocodile-and-frog proverb a success or a misfire? Explain using audience response and semantic domain.
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It is both a semantic misfire and an interactional success. Semantically, the proverb's conventional target is a lazy son-in-law, not a public official. Applying it to the councillor shifts the proverb's domain from domestic conduct to public accountability, and the audience laughter signals recognition of that mismatch. Laughter is not proof that the audience agrees with the criticism; it may be laughter at the incongruity.
Interactionally, Kavezeri handles the moment well: he pauses, holds the floor, and continues. That shows audience awareness and poise, which the rubric rewards. The teacher should not treat the laughter as a failure of fluency. Instead, feedback should ask him to state the proverb's proper target and then find a proverb about broken promises, neglect of duty, or public responsibility. The mark adjustment is small: appropriateness drops because the proverb's meaning misfires, but audience awareness remains high because he recovered and maintained contact.
3. Draft the 90-second feedback you would give Kavezeri, and state one mark adjustment with a reason.
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'Your content was strong: you linked the river to the borehole and the grant, and you gave the panel a clear picture. Two adjustments. First, group your English technical terms and gloss them once, so the switches support your argument instead of interrupting your Thimbukushu flow. Second, check the proverb's target before you use it. The crocodile-and-frog proverb normally criticises a lazy son-in-law; when you aimed it at the councillor, the audience laughed at the mismatch. Next time, choose a proverb about public duty or broken promises, or explain why you are extending the proverb's meaning.'
Mark adjustment: appropriateness moves from band 4 to band 3 because the proverb's semantic domain does not fit the target. Fluency stays at band 3: the 14 switches are mostly technical, and he recovered from losing his place. Content remains band 4. Do not deduct for the 10-second overrun because the rubric allows a 10-second grace.