Sinclair Secondary School is located in Whitby, Ontario. Opened in 1994, it is home to nearly 2000 students and over 100 teaching staff. Serving both Special Education and French Immersion students, the school is recognized for its strong academic reputation and remains the highest ranked school in the Durham Region, according to the Fraser Institute's Ontario Secondary School Report Card program.
One of Sinclair Secondary's most established, largest, and most recognized clubs is its DECA chapter. Founded in the early 2010s, the club has grown exponentially over the years to amass a membership of over 120 students who compete in DECA business competitions both in Canada and the United States. Being the host school for the Nor-Eastern regionals, the chapter is well-known for its organizational abilities and overall DECA spirit. The chapter regularly sends teams of both written and oral competitors to the International Career Development Conference held in the United States. Sinclair Secondary's chapter is very well known in the social sphere of DECA Ontario for its competitive members and their efforts in various events such as the CSP. Their efforts Community Service Project in the year of 2015-2017 with the team of Young and Ma saw huge non-profit work and donations made for Muscular Dystrophy Canada and collectively raised several thousands of dollars for the non-profit. Additionally, in the year of 2016-2017, the team of Myers contributed over 400 hours of community service work and over two thousand pounds of food donations for Feed the Need in Durham. Both of the aforementioned teams progressed to the international stage of DECA competition at the ICDC events in both Orlando, Fl, and Anaheim, Ca, where they presented their work contributed to both of their causes. The chapter has its well-known advisers of Kristie Lee and Raymond Scarlet who are large influences on how the chapter is ran and on how the Nor-Eastern regional events are held annually.
Sinclair Secondary's GSA is very well known in the Durham Region for its pride events and efforts made to benefit the LGBTQ community of not only the secondary school, but also the Durham region. The club’s former president, Mackenzie Mumby, was the driving force behind the opening of the first gender-neutral washroom in the Durham District School Board in 2016, which allowed transgender and non-binary students to have a safe washroom space which was not present anywhere in the school district before its appearance. The club and the Gender Studies classes in the school, work together to hold annual pride-days at the school and are the main administration behind the Pink-shirt week that the school hosts annually.
