Learn. Compete. Win. · 2026–27
A contest gives children a chance to try unfamiliar problems, express an original idea and discover what they can do. Explore the subjects and formats below, choose a suitable challenge, then use the calendar to plan your year.
Start with your child
Some children enjoy solving a mathematical puzzle; others would rather tell a story, make art or argue a thoughtful case. Start with a subject your child likes and check the entry level, format and preparation advice on its contest page.
CIC brings six subjects together around an annual theme. The Mathematics Olympiads offer a heat-to-final pathway. Bebras introduces computing through logic puzzles. CNML adds another mathematics opportunity, with dates to be announced.
Six subjects · 2027 theme: Leadership
Leadership begins with thoughtful choices. Through mathematics, science, computing, art, writing and speaking, students explore how to take initiative, earn trust and help others work towards a shared purpose.
CIMC
Explore the mathematics behind responsible decisions: compare options, make sense of information and solve problems involving shared resources. CIMC combines practical mental mathematics with problem solving at each student's grade level.
CISC
Explore how scientific evidence guides responsible action on issues such as water, energy and health. CISC asks students to apply scientific knowledge and reasoning in a timed online test.
CICC
Explore how well-designed rules and processes can help a group solve problems. Use patterns, logic and step-by-step reasoning to organise information and test solutions; prior coding experience is optional.
CIAC
Show leadership through an original visual story: the courage to begin, the willingness to listen or the shared effort that brings people together. CIAC is an artwork submission, with time to develop an idea during the March window.
CIWC
Explore leadership through a character's choices, courage and responsibility. CIWC combines reading comprehension with an original creative response completed during a 75-minute online test.
CIPC
Explore what makes leadership trustworthy and effective through persuasive speech and respectful debate. Students submit a recorded speech first; qualifying speakers progress to the live debate final.
TIMO · Big Bay Bei · HKIMO
Three opportunities to stretch mathematical thinking beyond routine exercises. Each starts with a Canadian online heat. Qualifying students can choose to enter a separately registered global final.
Grades 2–12 (Canadian entry). Heat and final details are together on each contest’s page, including syllabus, awards, registration and preparation.
TIMO
Thailand International Mathematical Olympiad
Build confidence across five areas of mathematics: logic, arithmetic and algebra, number theory, geometry, and combinatorics. Start with the heat; qualifying students can enter a separate final.
BBB
Big Bay Bei Mathematical Olympiad
Tackle challenging mathematics in the Guangdong–Hong Kong–Macao Greater Bay Area Olympiad. Its shorter heat and final reward careful reasoning and good time management.
HKIMO
Hong Kong International Mathematical Olympiad
Apply mathematical ideas to unfamiliar problems in logic, arithmetic and algebra, number theory, geometry, and combinatorics. A spring heat leads to a separate late-summer final for qualifying students.
Computational thinking · No coding required
An approachable first computing contest: short, visual puzzles invite students to recognise patterns, follow rules and find efficient solutions. One supervised challenge, with age-appropriate categories.
BEBRAS
Explore computing through short logic puzzles. No coding experience is needed: students spot patterns, follow rules and work out efficient solutions.
CNML · Dates TBD
Another opportunity to put mathematical reasoning into practice. CKSTEM’s CNML schedule and hosted entry details will be added when confirmed.
CNML
Practise applying mathematics to varied problems in a timed contest. CKSTEM’s CNML dates and entry arrangements will be announced here.
For families
Read the contest guide before registering. A timed contest is one sitting; a submission window gives time to prepare work. Olympiad finals and the Public Speaking final require qualification.
Current fees and any arrangements still being confirmed are identified on each guide. Contact CKSTEM about entry or choosing a contest.
For schools
Choose suitable contests and appoint a coordinator. For CIC timed contests, arrange a supervised sitting within April 1–16. Art and Speaking use their March submission windows.
Olympiad heats use a repeatable Saturday schedule: the last Saturday of November for TIMO, the second Saturday of February for BBB, and the last Saturday of April for HKIMO.
No. Choose a suitable subject and level, with enough time to prepare comfortably. Each contest is a separate opportunity.
No. TIMO, BBB and HKIMO have separate heat and final registrations. Qualifying students receive instructions for the final; entering it is optional.
Bebras uses logic and computational thinking without requiring programming experience. CICC also develops patterns, algorithms and reasoning; prior coding is optional.
CIC 2026 results and past contest winners are available separately from this season’s entry information.
Plan your year
Dates below are for CKSTEM’s Canadian entries. ET means Toronto time; PT means Vancouver time. Use “Other time zones” for your location.
15 calendar entries
| Contest & round | Date & start time | Duration / format | Register by |
|---|---|---|---|
| Bebras ChallengeOpen entry | Sat, Nov 14, 2026 12 pm ET / 10 am PT Other time zones | 45 minutes | Oct 24, 2026 |
| TIMO · HeatOpen entry | Sat, Nov 28, 2026 12 pm ET / 10 am PT Other time zones | 90 minutes | Nov 7, 2026 |
| TIMO · FinalQualification required | Fri, Jan 29, 2027 6:30 pm ET / 4:30 pm PT Other time zones | 120 minutes | Jan 8, 2027 |
| BBB · HeatOpen entry | Sat, Feb 13, 2027 12 pm ET / 10 am PT Other time zones | 75 minutes | Jan 23, 2027 |
| Visual Art · SubmissionsOpen entry | Mar 1, 2027 – Mar 30, 2027 Submission window | Prepare and submit work within this window | Feb 15, 2027 |
| Public Speaking · SubmissionsOpen entry | Mar 1, 2027 – Mar 15, 2027 Submission window | Prepare and submit work within this window | Feb 15, 2027 |
| BBB · FinalQualification required | Fri, Mar 12, 2027 6:30 pm ET / 4:30 pm PT Other time zones | 90 minutes | Feb 19, 2027 |
| Public Speaking · FinalQualification required | Sat, Mar 27, 2027 12 pm–3 pm ET / 9 am–12 pm PT Other time zones | 180 minutes | By invitation |
| Math · Contest windowOpen entry | Apr 1, 2027 – Apr 16, 2027 Choose one supervised sitting | 75 minutes | Mar 15, 2027 |
| Science · Contest windowOpen entry | Apr 1, 2027 – Apr 16, 2027 Choose one supervised sitting | 60 minutes | Mar 15, 2027 |
| Computing · Contest windowOpen entry | Apr 1, 2027 – Apr 16, 2027 Choose one supervised sitting | 60 minutes | Mar 15, 2027 |
| Writing · Contest windowOpen entry | Apr 1, 2027 – Apr 16, 2027 Choose one supervised sitting | 75 minutes | Mar 15, 2027 |
| HKIMO · HeatOpen entry | Sat, Apr 24, 2027 12 pm ET / 9 am PT Other time zones | 90 minutes | Apr 3, 2027 |
| HKIMO · FinalQualification required | Fri, Aug 27, 2027 6:30 pm ET / 3:30 pm PT Other time zones | 120 minutes | Aug 6, 2027 |
| CNML · Contest datesDetails to be announced | TBD TBD | TBD | TBD |
No contests match both filters. Choose another format or reset the filters.
For a fixed-date contest, registration closes three weeks before the sitting. For a submission or sitting window, registration closes two weeks before it begins, except Math, Science, Computing and Writing: their confirmed deadline is March 15, 2027. Finals require qualification and a separate invitation or registration.
Download contest calendar (CSV) · Academic calendar and class schedule
