Thank you for the link. AlJazeera is blocked in my country, but I was able to read it. Why is the school called Shajareh Tayyebeh, Arabic for Good Tree? Don't t

Thank you for the link. AlJazeera is blocked in my country, but I was able to read it. Why is the school called Shajareh Tayyebeh, Arabic for Good Tree? Don't the Iranians speak Persian? Why an Arabic name?