Tenth grade or grade 10 (called Year Eleven in England and Wales, and sophomore year in the US) is the tenth year of school post-kindergarten or the tenth year after the first introductory year upon entering compulsory schooling. In many parts of the world, the students are 15 or 16 years of age, depending on when their birthday occurs. The variants of 10th grade in various countries are described below. Australia For most Australian states, Year 10 is the fourth year of a student's high school education. However, in the Northern Territory, it is the first year of senior school, which occurs after high school. While in contrast, in most South Australian public schools, it is the third year of high school. For more in depth information on Australia's education system, see: Education in Australia. Belgium In Belgium, the 10th grade is called 4e secondaire in French (Walloon), or 4de middelbaar in Dutch (Flemish). Brazil In Brazil, the tenth grade is the "primeiro ano do ensino médio", meaning "first grade of high school". Students tend to be 15–16 years old. Canada In Canada, grade 10 is the 10th year of mandatory schooling. Depending on province, it may be the first (grades 10-12 high school), second (grades 9-12 high school), third (grades 8-12 high school), or fourth year of high school (grades 7-11 high school). In most Canadian high schools, students tend to be 15 – 16 years old. Denmark In Denmark the 10th grade may refer to an extra year of primary school. Earlier, 10th grade was mostly for people who had a hard time in primary school and needed an extra year to prepare for high school (or another secondary education of some sort), but nowadays, it is widely popular amongst challenged and gifted students alike and usual attended at a special kind of boarding school called an "Efterskole". 10th can also be attended at a regular school, though. This year is usually taken as a way to get a break from the school system and relax and try something different before moving on to high school. But, more commonly, people attend the "gymnasium" (can be compared to high school) where you go from 10th-12th grade (as such, some people attend 10th grade twice). People don't usually call the steps of the Danish gymnasium for 10th, 11th or 12th grade, but usually refer to them as 1st G, 2nd