In universities, taking attendance is a daunting task. In particular, in 250+ student lecture class. Often, there are teacher's assistants hired to take attendance. Roll Call was designed to tackle the task of keeping record of students' attendance, ultimately freeing up unnecessary time that can be better spent on class curriculum. Students are able to check-in to the class with the app and download any notes or materials for that class-day from their phone. The interface of the app is easily color coordinated for the student and teachers to identify their classes. In order to ensure a cheat-proof system, a series of high-frequency audible codes only heard by the phone is emitted throughout the room. To successfully check - in the code must match the correct time it is being emitted.
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