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Waterloo contest practice, made personal

Practice Waterloo contests the right way.

Lemma helps students prepare for Canadian and Waterloo math contests. Work through contest practice, review AI marking and explanations, spot patterns across attempts, and know what to practise next.

Start practicingSee how it works
  1. Practice
  2. Get marked
  3. Understand
  4. Spot patterns
  5. Act
Lemma dashboard with navigation, a CSMC contest goal, study plan, five-day streak, and logged-question progress.
Your contest practice, progress, and next step—in one place.

The Lemma loop

Every contest should tell you what to do next.

Lemma connects the work you already do into one continuous practice loop. Follow one attempt from choosing a contest to a focused next action.

  1. 01Choose

    Choose your contest. Keep your momentum.

    Start a Waterloo paper based on your contest goal, resume an attempt in progress, or revisit a completed one

    A CSMC contest bank grouping Waterloo contest attempts as in progress, not completed, and completed.

  2. 02Practice

    Do the contest. Save the thinking.

    Work through a real Waterloo contest while your response, confidence, and approach are still fresh.

    A timed Waterloo contest problem beside Lemma's response and approach logger.

  3. 03Get marked

    Get marks, not just an answer key.

    Lemma compares your submitted work with official Waterloo solutions, marks every problem, and totals your contest score.

    A preview of a completed contest with an AI-marked score and marks for all nine problems.

  4. 04Understand

    See where the marks went.

    Review your original approach beside targeted feedback and a clear step-by-step explanation.

    A student's saved approach shown with targeted feedback and a step-by-step explanation.

  5. 05Spot patterns

    Find the mistakes that repeat.

    Results across contests become evidence: what is weak, what is developing, and what is already strong.

    A topic overview organizing practice into weak, developing, and strong areas.

  6. 06AAct · Focus

    Open the topic behind the pattern.

    Inspect the evidence by subtopic, then ask Lemma to turn it into a focused plan.

    The Algebra topic review with subtopic evidence and a button to create a game plan.

  7. 06BAct · Plan

    Know exactly what to practise next.

    Leave with one clear priority, why it matters, and specific work for your next practice session.

    A personalized Algebra game plan with ranked recommendations for what to practise next.

READY FOR YOUR NEXT CONTEST?

Make your next contest count.

Start with a Waterloo contest. Leave knowing exactly what to practise next.

Start practicing