of K-12 curriculum on Grade 6 in June 5, 2017. Portugal In Portugal, grade 6 (6º ano de escolaridade) is the second year of middle school. Poland In Poland, grade 6 (klasa szósta) is the sixth year of primary/elementary school. Until 2017, it was the last year of primary/elementary school, and at the end of it, students took the sprawdzian szóstoklasisty, which translates into "sixth grader's exam" Brazil In Brazil, grade 6 (6º Ano or 6ª Série) is the first year of middle school. It is the sexto ano do Ensino Fundamental II. Saudi Arabia In Saudi Arabia, Grade 6 is the last year of elementary school. Singapore In Singapore, the equivalent is Year 6 also known as Primary 6. They would have to take the Primary School Leaving Examination at around September to proceed to Secondary School. During this time, students in Primary 6 would learn Algebra and 3D Shapes, age from 12–13 years old. South Korea In South Korea, Grade 6 is the final year of elementary school. Sweden In Sweden, Grade 6 is the final year of middle school (mellanstadiet). Students are often 12-13 years old unless they've been promoted or held back. The following grade (Grade 7) is then the start of high school (högstadiet). Students get grades for the first time in Grade 6; once at the end of the first term/winter term (Terminsbetyg) and one at the end of the grade (Sexans betyg). Students also get to do their second national tests, called "Nationella prov" in Sweden. These tests are done at the end of Grade 3, Grade 6 and finally Grade 9. In Grade 6, the students participate in two different parts of the tests: First oral tests during the first term and then written tests in the second. The oral test is test A, then the written tests are done on separate days and are divided into Test B, C, D and E. These tests are done in the subjects Swedish/Swedish as secondary language, Math and English. In Grade 3 students only do one oral test in Swedish and written tests in Swedish and Math and in Grade 9 students do oral tests in the subjects Swedish, Math and English and written tests in Swedish, Math, English, Social Studies (SO) and Science (NO). Some schools also do written tests in modern languages (German, French, Spanish). Vietnam In Vietnam, Grade 6 is the