[2] Sinclair was born in Grenoble, the daughter of Canadian academics who were on sabbatical there; she grew up in Calgary.

[3] Sinclair then earned her Ph.D. in 2002 from Queen's University at Kingston, under the joint supervision of Peter Taylor of the Department of Mathematics and Statistics and William Higginson of the Faculty of Education.

[5] In 2014, Sinclair and Nicholas Jackiw developed a mathematical app targeted at children ages three to eight.

[6] Two years later, she was named a Tier 2 Canada Research Chair in Tangible Mathematics Learning.

[8] Later that year, Sinclair was elected a Member of the College of New Scholars, Artists and Scientists of the Royal Society of Canada.