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AI help for world languages: attempt first, then feedback

In a language class, the translation is the shortcut. How Nexus's class modes keep students producing the language themselves, with AI feedback on their own attempt.

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Facts as of Oct 18, 2026Last reviewed Oct 19, 20262 min read

[ WORLD LANGUAGES ]

Feedback on the student's own sentence

Language learning depends on producing the language, getting feedback and trying again. AI can give that feedback quickly. In a study by a German team of 459 upper-secondary students learning English, AI feedback on their essays improved revisions (d = 0.19), motivation (d = 0.36) and positive emotions (d = 0.34). The feedback was on the students' own writing.

Language learners also face a fairness problem with AI checks. Seven AI-writing detectors flagged on average 61% of essays by non-native English writers as AI-written. A detector is a poor judge of a student writing in a second language.

How the three learning modes work in world languages

Modes describe how a class is set up to respond, and students cannot change a class's mode. AI can make mistakes; before any pilot we check Hints and Guided with real models.

Mode	What the student gets	Good for	Watch for
Hints	A question about the grammar choice: "Single event or habit?"	Conjugation, tense choice, sentence building	Requests to translate whole passages
Guided	One step at a time through a paragraph: vocabulary, structure, verbs	Writing tasks and presentations	The AI producing sentences the student copies
Full answer with critique	A corrected version with an explanation of each change	Reviewing a finished draft	Students reading corrections without rewriting

Learning modes in world languages

A hint-first exchange

Study assistantHints

StudentTranslate into Spanish: "When I was a child, I went to the beach every summer."

Study assistantTry it first. Which past tense fits an action that happened again and again?

StudentCuando era niño, fui a la playa cada verano.

Study assistantGood start: "era" is right. Now look at "fui." Was going to the beach a single event or a habit?

StudentA habit. So imperfect: iba.

Study assistantYes. Read the whole sentence aloud and check each verb's tense.

StudentCuando era niño, iba a la playa cada verano.

Study assistantThat works. Write one more sentence about something you used to do every summer.

Illustration: written by the Nexus team to show how a Hints class is designed to respond. It is not a transcript of Nexus output. Real answers vary by model, and AI can make mistakes.

Class instructions teachers can add

Each class can carry the teacher's own instructions on top of its mode. A few that work well here:

"Never translate for the student. Ask for their attempt first."
"Reply in the target language at the student's level, with English only when they are stuck."
"Correct one error type at a time, starting with verbs."
"End each exchange by asking the student to write a new sentence."

Checking what students can do alone

Spoken and handwritten production without help is the clearest check. Short unaided writing prompts and conversations, spread across the unit, show what students can produce on their own. Retrieval practice works for vocabulary and grammar: classroom quizzing improves learning, g = 0.50 across 222 studies.

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