List of 15 news stories.

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  Graduation Ceremonies 2025

  The Annual CDS Graduation Ceremonies will take place in person next Thursday, June 12, and we are looking forward to celebrating with you!
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  Middle/Senior School Athletic Assembly Recap

  On Monday, we recognized our student athletes and celebrated all three terms of athletics at the MS/SS Spring Athletic Assembly. Individual team awards, major athletic recognitions, and CISAA plaques were presented with sports commentary provided by our GY co-anchors Diya Mangat and Jack Brown.
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  2025 Fryer, Galois, Hypatia and Euclid Math Contests

  By Kirsta Edwards

  
  

  In early April, a total of 50 students from both the Middle and Senior Schools engaged in our most rigorous math competitions: the Fryer, Galois, Hypatia, and Euclid Contests. The Fryer, Galois, and Hypatia each last for 75 minutes and entail solving four problems, while the Euclid spans for 2.5 hours and features 10 questions. All of these contests demand clear, well-structured explanations using proper mathematical form.
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  2025 Middle School Grade 7/8 Gauss Mathematics Contest

  By Krista Edwards

   

  On May 14th, all of the Middle School students at CDS had the opportunity to participate in this year’s Gauss Mathematics contest. The contest consists of 25 multiple choice questions with topics chosen from the Grade 7 and Grade 8 mathematics curriculum.

  
  

  Certificates of Distinction were earned by those who achieved in the top 25% of participants at CDS.
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  Grade 11 & 12 Students Honour Ms. Collins’ Life’s Little Instructions at Assembly

  At Tuesday’s Middle/Senior School Assembly, 21 Grade 12 and 11 students, many who are CDS Lifers, paid tribute to their late teacher Ms. Steph Collins, a beloved Junior School teacher and originating force behind the CDS Outdoor Ed program. Ms. Collins passed away from Melanoma in 2019 when these students were in Grades 6 and 7. 

   

  “On September 9th, 2019, when we were in Grade 7, we lost an amazing teacher, coach, and role model after a courageous battle with cancer,” shared Diya Mangat ’25 and Olivia Budweth ’25.
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  Senior Vocal Students Shine in Final Performance

  This year’s Senior School Vocal class took their final bow on Tuesday with an intimate concert in the Paul C. Duckett Theatre as their final project performance.

   

  The performance opened with a trio by all three students, joined by their teacher, Ms. Kettrick. The students then showcased their individual talents through a mix of solo performances and duets, frequently accompanied by the ever-supportive Mrs. Curran on piano.
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  CDS Jazz Combo Strikes Gold at Regional and National Competitions

  By Patrice Barbanchon

   

  We are thrilled to announce that the CDS Jazz Combo has earned Gold ratings at both the Golden Horseshoe Music Festival and the prestigious MusicFest Nationals this season.

   

  The ensemble impressed adjudicators at the regional Golden Horseshoe Music Festival with their tight arrangements, expressive solos, and cohesive sound—earning them a Gold standing and an invitation to the national stage. 

   

  At MusicFest Nationals, one of Canada’s most respected student music festivals, the combo delivered another standout performance, once again achieving Gold and solidifying their reputation as one of the top high school jazz groups in the country.
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  Don't Miss Portraits 2024–25: A Must-See Showcase of Student Talent

  CDS’s Arts & Literary publication, Portraits, is hot off the press and features a wonderful array of Middle School and Senior School student artwork, poetry and writing submissions from close to 50 students, all artfully presented in a student-designed magazine format.
  
  This year’s editor, graduating student Angelina Cai ‘25, helped choose this year’s theme – inspired by the Rorschach inkblot – which in her words, “is all about seeing different perspectives, in both the symmetry and the ink. The fun thing about anthologies is that they bring creative works together for an audience to see and interpret and celebrate.”
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  CDS Team Captures 2nd Place in Judges’ Cup Mock Trial Tournament

  By Dave Downer

  
  

  The annual Judges’ Cup was held in the court chambers of the Newmarket Courthouse on April 29 and 30. The competition hosted 24 York Region schools who took part in two trials, taking on the role of prosecution in one and defence in the other. The Country Day School team competed on the second day against Keswick High and Unionville SS.

  
  

  This is the largest tournament in the province and the only one to be heard by actual judges in a working courthouse. The cases are developed by the Ontario Justice Education Network and are tried by students in tournaments across the province. The experience is both nerve-wracking and exhilarating for the participants.
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  French Week in the Junior School: A Celebration of Culture and Fun!

  By Madame O’Rourke et Madame Racine

  
  

  From April 22nd to April 25th, we joyfully celebrated la semaine du français in the Junior School. As soon as we entered the dining hall, the delightful aromas of classic French cuisine greeted us, transforming lunchtime into a culinary adventure.
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  It is already PSAT signup time again!

  By Ms. Williams

  
  

  If you are serious about applying to a US university next year, we are hosting the Preliminary SAT (PSAT), on Tuesday, October 21, beginning at 8:30 am sharp.

   

  The PSAT is a standardized digital test that provides first-hand practice for the SAT Reasoning Test. The results from the PSAT are reported to you and CDS but are not part of any formal application to any university. There are many ways to practice and prepare for the SAT; the PSAT is just one. In the past many students who wrote the PSAT in grade 10 moved directly forward to the SAT in their grade 11 year.
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  Pascal, Cayley, and Fermat Math Contests 2025

  By Krista Edwards

   

  In February, a group of 55 Middle and Senior School students rose to the challenge of writing the annual  Pascal, Cayley, and Fermat mathematics contests organized by the University of Waterloo.  

   

  Certificates of Distinction are earned by those who achieve in the top 25% of participants at CDS and the school medal is awarded to the top score at CDS (please note that all certificates and medals have a minimum cut-off  score that is set by the CEMC, and the school medals will be distributed once the shipment arrives).  
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  Students Deepen Understanding of Global Affairs at Model UN

  By Anya Sood ‘26

   

  Last week, seven CDS students travelled downtown to Toronto and participated in the 52nd annual Southern Ontario Model United Nations Assembly (SOMA). Hosted by the University of Toronto School, over 650 delegates from different high schools around Ontario gathered to participate in a variety of committees on the University of Toronto’s St. George Campus.

  
  

  By tackling real-world issues like cybersecurity, human trafficking, nuclear disarmament, data privacy, and cryptocurrency's role in the drug trade, delegates developed and strengthened a variety of skills. Over three days of committee sessions and well-structured but intense debates, participants put themselves in the perspective of United Nations representatives and deepened their understanding of global affairs, the United Nations, and diplomacy while engaging in topics relevant to our world today. 
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  Current events in the public speaking and debating world

  By Andrea Davidson
  
  This past weekend, 12 students travelled to Branksome Hall in Toronto to participate in the annual Nora McRae Public Speaking competition. Students have been working hard for months writing and memorizing speeches as well as practicing readings and impromptu speaking to prepare for this competition. For many of our junior competitors in Grades 7-10 this was their very first time competing in a tournament. Additionally, this year's Nora McRae saw one of the largest pools of competitors in years with over 60 students from various schools participating.
  
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  CDS Attends Canadian Team Mathematics Challenge

  By Jason Jugoon

   

  Last Monday, the CDS Math Team competed in the Canadian Team Mathematics Challenge hosted by Pickering College. The event featured 11 teams from eight independent schools. Teams wrote the same University of Waterloo paper written by participants around the world. 

  Before the start of the contest, students enjoyed a presentation by Richard Dlin, an instructor at the University of Waterloo. Mr. Dlin talked to the competitors about the value of analyzing problems using different approaches and striving to identify the correct answer through the most optimal pathway.

   

  The competition consisted of three parts: team, individual and relay. In the team portion, all six members worked together to solve 25 questions without the use of a calculator. In the individual portion, each member worked independently on 10 questions. In the final event, students worked together to solve questions in a relay-style event in which answers were passed from one member to the next. 

  After four hours of intense competition, the CDS team members had an opportunity to have dinner and mingle with competitors from the other teams. Overall, the team placed sixth out of eleven – a very commendable performance.

   

  Team members: Andrii Bessarab ‘25, Jason Liang ‘25, Dylan Matsui ‘27, Luca Tchelidze ‘26, Preston Baichoo ‘26; Missing from the team picture: Alex Wang ‘26