The instructor does not always have control over the physical environment of his/her classroom.  However, it is good to be aware of conditions that may interfere with learning and improve them if possible.

Tips

• Encourage students to choose their seats in the room based on lighting, line of sight, and how well they can hear the lecture.
• Be aware of ambient noise and other auditory interference.  Take advantage of amplification systems and captioning.
• Regularly ask students if they can hear you and if they can see the presentation.
• If distracting conditions can't be remedied, request a different room 

Source:  ASD Project, Utah State University, Version 4.0, copyright 2003-2006.