Muslim students have become a major presence in some communities in the United States, prompting public schools to be more attentive to their needs during the holy month of Ramadan when dawn-to-sundown fasting is a duty of Islam. For example,in Dearborn, Michigan — where nearly half the 110,000 residents are of Arab descent — public school teachers and staff strive to make things easier for students observing Ramadan. “We allow students on their own to practice their faith as long as it’s not a disruption to the school day,” said Dearborn Schools spokesperson David Mustonen. “We also try to fi…