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What is CEMC?
CEMC stands for the Centre for Education in Mathematics and Computing at the University of Waterloo in Canada. It is a math and computer science outreach organization that has been running since 1963, and it describes itself as the largest of its kind in Canada. Its stated mission is to build interest, enjoyment, confidence, and ability in math and computing among learners and educators, both in Canada and internationally.
Its main activities fall into three areas:
- Contests for students in Grades 5 to 12, designed by mathematicians, computer scientists, and educators. CEMC says it runs 16 contests and reaches over 300,000 students in more than 85 countries.
- Tools and resources, including free online materials and a weekly problem, organized by grade level from Grade 3/4 upward.
- Workshops and events for students and educators.
The contests are pitched at a wide range of abilities: CEMC frames them both as a low-pressure way for curious students to build confidence and as a stretch for advanced students. A teacher quoted on the site describes the contests as building resilience, adaptability, persistence, and strategy-based thinking.
A practical next step: if you are deciding whether CEMC fits your situation, start with the grade-level section for your student. That will show you which contests and free resources match their current level before you commit to anything more involved. For a student who enjoys puzzles but has never done a contest, the free weekly problem is a sensible low-stakes first try; for one already strong in math, the contests themselves are the more useful challenge.
For comparison, other well-known math enrichment routes include Art of Problem Solving for courses and forums, and Mathematical Association of America for the AMC series in the United States. CEMC's distinguishing feature is its grade-banded, contest-centered structure tied to a Canadian university, with free resources alongside the paid competitions.
How can my child participate in CEMC contests?
Your child participates through their school: CEMC contests are written at registered schools, and a teacher or school coordinator handles the registration and administers the paper. If your school already takes part, your main job is simply to tell your child's math teacher they want to write.
If your school doesn't offer the contest
Contact CEMC directly and ask about writing through another school or an approved centre. Homeschooling families and students at schools that don't participate can often be accommodated, but arrangements take time, so start well before the contest date.
Practical steps
- Check the contest calendar for the grade level and date that fits your child.
- Ask the school whether it is already registered; if not, ask whether it is willing to register.
- Confirm which contest suits your child's grade and confidence level.
- Use the free past contests and Problem of the Week to prepare.
Choosing a contest
CEMC runs contests for Grades 5 to 12 and designs them for a wide range of abilities. A useful rule: pick the contest for your child's current grade first, and only move up if they are consistently comfortable with past papers at that level. For a child new to contests, the goal is finishing and enjoying the problems, not a top score.
Preparation that actually helps
- Work through past contests under timed conditions, then review every wrong answer.
- Try CEMC's Problem of the Week for low-pressure, regular practice.
- If computing interests them, look at the computing contests alongside the math ones.
For a specific child, the next step is to email the school's math department with the contest name and date, and copy CEMC if the school needs guidance on registering.
What free math and computer science resources does CEMC offer for students?
CEMC, the University of Waterloo's Centre for Education in Mathematics and Computing, offers free online tools and resources alongside its paid-entry contests and workshops. The free materials are organized by grade, from Grade 3/4 up through Grade 11/12, so students and parents can pick the level that fits rather than browsing a single undifferentiated library.
What is free and what is not
- Free: online tools and resources, including the Problem of the Week, plus grade-organized resource pages.
- Paid or school-mediated: contests and workshops are separate offerings, and contests typically run through a school or registered writing centre rather than as drop-in free activities.
Who each piece suits
A student who wants regular low-stakes practice can use the Problem of the Week as a weekly habit. A parent or teacher looking for a structured sequence should start with the grade-level sections, which group contests, workshops and resources together. A strong student aiming to stretch beyond class material is the audience the contest stream is built for, since CEMC describes contests as spanning a range of abilities from exploratory learners to advanced students.
How to choose
| Goal | Start with |
|---|---|
| Build a routine, no commitment | Problem of the Week |
| Find level-appropriate material | Grade 3/4 through Grade 11/12 sections |
| Test yourself against others | Contests (Grades 5–12) |
| Teacher-led enrichment | Workshops and events |
A practical next step: open the grade section matching the student's current year, try one Problem of the Week, then decide whether a contest fits. For a broader view of Canadian math outreach, CEMC is the reference point, and Math League and MAA run separate contest programs worth comparing if you want more than one option.
Which CEMC contest is right for my grade level?
CEMC organizes its contests by grade band, so the fastest way to choose is to start with your current grade and then decide how much challenge you want. The contest pages are grouped as Grade 3/4, Grade 5/6, Grade 7/8, Grade 9/10 and Grade 11/12, and the contests themselves are written for students in Grades 5 to 12 across a wide range of abilities — from first-time explorers to students aiming to stretch themselves.
Match the grade band first
| Your grade | Where to look | Typical fit |
|---|---|---|
| 3–4 | Grade 3/4 resources | Introductory problem-solving, not contest-focused |
| 5–6 | Grade 5/6 contests | First contest experience; building confidence |
| 7–8 | Grade 7/8 contests | Core middle-school contest track |
| 9–10 | Grade 9/10 contests | Transition toward senior-level problem solving |
| 11–12 | Grade 11/12 contests | Advanced preparation and challenge |
Then decide by purpose, not just grade
Grade band tells you eligibility; it does not tell you difficulty. Two students in Grade 8 can reasonably sit different contests. Ask what you want out of it:
- Confidence-building: pick the contest at or just below your comfort level, so the problems feel solvable with effort.
- Stretching: pick the contest at your grade level or one band up if you have already done well in a previous sitting.
- Skill diagnosis: use past contests and the free online tools and resources to see which topics — algebra, geometry, counting, computing — are actually holding you back.
A concrete example: a strong Grade 7 student who has never written a contest should generally start with the Grade 7/8 track rather than jumping to Grade 9/10, because the format and pacing are as much of a hurdle as the mathematics. A Grade 10 student who has already scored well at the Grade 9/10 level is a better candidate for moving up.
A useful next step
Open the grade section that matches the student, read the contest descriptions and sample problems there, and try one past paper under timed conditions before registering. That single trial usually answers the question better than any comparison chart. The CEMC site at CEMC also publishes a Problem of the Week, which is a low-pressure way to test readiness before committing to a contest.
If you are choosing on behalf of a class or a child and remain unsure, the deciding criterion is simple: pick the contest where the student can attempt most problems but not all of them. That is where the learning happens.
How do I prepare students for CEMC contests as an educator?
Prepare by treating the contest as a reasoning exercise rather than a content sprint. CEMC contests are designed for a wide ability range, so your first job is choosing the right level and then building regular, low-stakes problem-solving practice around it.
Start with the grade-level entry point
The CEMC site organizes contests, workshops, tools and resources by grade band (3/4, 5/6, 7/8, 9/10, 11/12), which makes it easier to match students to an appropriate challenge instead of guessing. Begin there, then use the "how contests work" material to understand format and expectations before you set a preparation plan. CEMC
Build a weekly routine, not a cram block
A practical structure for a term:
- One short problem set per week, done individually, then discussed as a class.
- A "Problem of the Week" style item as a warm-up or optional challenge.
- One full past contest under timed conditions, closer to the event, so students practise pacing and decision-making about which questions to attempt.
- A review session where students explain their reasoning aloud, including wrong turns.
The value here is metacognitive: students learn to recognize when to persist and when to move on.
Differentiate within one classroom
CEMC states its contests suit learners exploring math and computing for confidence as well as advanced students stretching their limits. That means you can run the same contest with different goals:
| Student profile | Preparation focus | Success looks like |
|---|---|---|
| Building confidence | Weekly accessible problems, no timing pressure | Attempting every question without anxiety |
| Middle range | Mixed difficulty sets, timed sections | Choosing questions strategically |
| Advanced | Harder problems, proof-style explanations | Clear, justified reasoning under time |
Use the wider resource set
Beyond contests, CEMC offers free online tools and resources plus workshops and events, which can supplement classwork or support a club. If you want a broader set of practice problems, Art of Problem Solving is a well-known community resource, though its style and difficulty range differ from CEMC's own materials.
Next step
Pick one grade band, download or open one recent contest and its solutions, and run a single 30-minute trial with your class this week. Note which questions caused the most hesitation — that tells you what to teach next, and it gives students an honest picture of the contest before it counts.
What workshops and events does CEMC host for students and teachers?
CEMC hosts workshops and events for both students and teachers, but the exact mix depends on the grade level and whether you are looking for student enrichment or professional learning. The site organizes much of this by grade band (3/4 through 11/12), so the fastest route is to start there rather than browsing a single events list.
For students
CEMC's student-facing events center on interactive workshops and its contests, which the site describes as designed by teams of mathematicians, computer scientists, and educators for Grades 5 to 12. Contests serve a dual purpose: they act as enrichment for students who want to stretch, and as confidence-building exploration for those new to math and computing. Workshops are presented as hands-on sessions that complement the contest and resource material.
A practical scenario: a Grade 7 student who enjoys math but has never done a formal competition could use a workshop to sample problem-solving in a low-pressure setting, then try a contest once they know what to expect. A Grade 11 student aiming for post-secondary STEM study might reverse that order—use a contest to benchmark themselves, then attend a workshop to address gaps.
For teachers and educators
CEMC frames its work as supporting educators as well as learners, and it says it collaborates with the wider education community. Teacher-oriented offerings are typically professional learning tied to the same resources and contests students use, so a teacher can see how a contest question translates into classroom problem-solving. An educator from British Columbia, quoted on the site, notes that the contests foster resilience, adaptability, persistence, and strategy-based thought—useful framing if you are justifying the time to administrators.
How to decide
- Student, new to enrichment: start with free online tools and a lower-grade contest, then add a workshop.
- Student, experienced: go straight to contests and grade-level workshops for depth.
- Teacher: look for workshops that pair with the contests your students will write, so preparation and instruction align.
- Parent: use the grade-band sections to find the appropriate level rather than guessing from contest names.
A useful next step is to open the grade-band section matching your student and check both the contests and workshops listed there; the site also offers a free "Problem of the Week" you can try before committing to an event. The main trade-off is breadth versus fit: CEMC's scale (300,000 students, 85+ countries, 16 contests) means abundant choice, so filtering by grade and ability level is what keeps the options manageable.
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