# AI Coding Tutor: Practice That Counts as Proof

> An AI coding tutor that diagnoses your level, plans topics around your gaps and tests each one. Passed exercises count toward the practice part of your SCI.

Source: https://getlemma.io/product/ai-tutor

Lemma's AI tutor is a coding tutor, not an open chat. It finds your level, plans the topics you are missing, explains each one and tests whether it stuck. Passed exercises are recorded as practice evidence on your Skills Passport.

## It checks you understood before it moves on.

Most AI tools answer the question you asked. Lemma's tutor starts with a diagnostic, builds a plan by topic, explains each one and tests it before moving on.

Diagnostic first: it checks what you know before it teaches

Explanations adapt: code, analogy or worked example, depending on what lands

Passed exercises are recorded as evidence for the Practice part of SCI

## From diagnosis to evidence.

Tutor practice feeds [the Practice part of SCI](https://getlemma.io/product/sci) and shows up on [your Skills Passport](https://getlemma.io/product/passport). Why tutor practice is capped is explained in [the methodology](https://getlemma.io/methodology#evidence-types).

### Diagnostic assessment

The tutor starts by identifying your current level with targeted questions before building your plan.

### Personalised curriculum

A plan of topics is built from your gaps and goals. Each topic is marked mastered or flagged for review as you go.

### Feedback on every answer

Every answer is graded with an explanation. After a miss, the tutor asks where you got stuck and explains the idea another way; after three, it flags the topic for review instead of moving on.

### Practice evidence

Each passed exercise appends an evidence event. AI drills can add up to 5 of the 25 points in the Practice part of SCI.

## Frequently asked questions

### What is an AI coding tutor?

An AI coding tutor teaches a programming skill one topic at a time and checks that you understood before moving on. Lemma's tutor starts with a diagnostic, builds a plan from your gaps, explains each topic with code, an analogy or a worked example, then tests it. Passed exercises are recorded as practice evidence.

### Can an AI tutor replace a human teacher when learning to code?

Not on Lemma. The tutor covers practice between live sessions, and sessions with people and adaptive assessments carry more weight. AI drills can add at most 5 of the 25 practice points in SCI, so tutor work supports other evidence rather than replacing it.

### How is an AI tutor different from asking a chatbot?

A chatbot answers the question you asked. The tutor decides what to ask you: it diagnoses your level, plans topics around your gaps and tests each one before moving on. Each topic is marked mastered or flagged for review as you go.

### How much does an AI tutor session cost on Lemma?

AI practice is paid in Lemma Credits. An AI tutor session costs 50 LC and a single drill costs 15 LC. Every plan adds credits each month, and teaching a live session earns more.

### Does AI tutor practice count toward my skill score?

Yes, within a cap. Each passed exercise appends an evidence event to the practice part of SCI, and AI drills can contribute up to 5 points. The cap keeps practice with software from outweighing evidence from people and assessments.

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## Give your skills somewhere to live.

Bring your evidence together and start building a Skills Passport that can grow with you.