The decimal separator for students using Blackboard in English is "." dot. For students using BB in Turkish this sign should be "," comma.Example: Let's say, the instructor, defined the answer as "1.5".If the students using the Turkish Language in BB enter "1,5" with a comma ",", the answer will be accepted as correct. If the students use BB in English, enter "1.5" with the dot ".", it will be considered correct too.1,5 will be incorrect if the student use BB in English.