The Standard Grade final examinations are sat at the end of the 4th year , and are graded from the highest mark of ' 1 ' down to the lowest of ' 7 ' .
They then choose up to 8 Standard Grades for their 3rd and 4th years .
The Standard Grades   final examinations are sat at the end of the 4th year , and are graded from the highest mark of ' 1 ' down to the lowest of ' 7 ' .
They then choose up to 8 Standard Grades for their 3rd and 4th years .