Classroom Audio Distribution System (CADS)
Making Educational Content Accessible for All Students
Purpose of CADS
Classrooms are noisy! Use CADS to overcome background noise in the classroom by evenly distributing your voice throughout the room, giving all students the same access to instructional information regardless of proximity to teacher.
How to Use Your CADS
Position microphone — 4 to 6 inches below the chin — avoid items brushing against microphone
Volume should be set at a comfortable listening level for students (not too loudly!)
Speak at a normal rate and volume
Mute system when working in small groups, having side conversations, or stepping out of the classroom
Benefits of Use
For Teachers
Improved academic achievement & student test scores
Fewer repeated instructions
Reduced fatigue
Reduced vocal strain/prevention of vocal nodules
For Students
Improved academic achievement & test scores
Improved clarity of teacher’s voice
Even distribution of teacher’s voice throughout the classroom
Improved student attention
For Administrators
Improved academic achievement & student test scores
Reduced teacher absenteeism
Choose Your Microphone
Teacher-worn microphone
Worn on lanyard with placement approximately 4-6 inches below chin; for use during whole group instructions
Microphone ball
Student microphone that can be passed around to encourage student participation in group discussion and make peer input accessible to all
Pass-around microphone
Student microphone that can be set up in one location for presentations or passed around to make peer input accessible to all
