Quick Answer. The formula bar is a feature in Microsoft Excel that enables users to create and view formulas. It is typically labeled with a function symbol (fx), and it is sometimes referred to as the formula box. Continue Reading.
An audio commentary is an additional audio track, usually digital, consisting of a lecture or comments by one or more speakers, that plays in real time with a video. Commentaries can be serious or entertaining in nature, and can add information which otherwise would not be disclosed to audience members.[1]
Online commentary forces teachers to comment on what's really wrong with the paper, rather than quick notes in the margins with a red pen (Barrett, 54). The electronic classroom is being embraced by more and more educators as a means of getting students to talk and express ideas in a more relaxed forum. Online discussion groups and E-mails are also gaining popularity with students, as well as teachers.