back-channel Synonyms

Strongest:

The teacher used a back-channel to communicate with a struggling student during a test.
The back-channel allowed for discreet and individualized support.
The students used the back-channel to ask questions and receive clarification from the instructor.
The back-channel conversation was not visible to the rest of the class.
The back-channel enabled real-time support and prevented disruptions to the lesson.
Through the back-channel, the teacher could provide additional resources to the student.
The back-channel allowed for anonymous communication between students and the teacher.
The back-channel served as a safe space for students to express their concerns or ask for help.
The back-channel was instrumental in improving student engagement and understanding.
The back-channel technology facilitated seamless communication between the teacher and students, regardless of location.

surreptitious, covert, off-the-books, clandestine, closed-door,off-the-record, confidential, behind-the-scenes,stealth, backstairs

open, overt,public, public, open, overt, unclassified, unclassified, straightforward, avowed

The teacher used a back-channel to communicate with a struggling student during a test.

The back-channel allowed for discreet and individualized support.

The students used the back-channel to ask questions and receive clarification from the instructor.

The back-channel conversation was not visible to the rest of the class.