Training courses can achieve the best results when the environment is well prepared for the task of learning. I teach by lecture and hands-on laboratory experiments, depending on the course.
Lecture requirements
quiet room large enough for the expected attendance
projector capable of at least 800x600 color resolution, VGA or HDMI interface is preferred
plenty of power for attendees to connect laptops
if the attendance is greater than 20 people or if the room is more than 400 square feet, a microphone and PA system is needed -- my voice is on the quiet side
fast Wifi connection to the internet is greatly appreciated by all
Laboratory requirements
asking folks to supply their own laptops leads to inconsistent experiences. A better approach is to have systems setup ahead of time and ready for use when the course begins.
computing equipment should be x86 or SPARC based systems with 17" or larger color monitors
minimum of 4 GB of RAM, with 8 GB or larger preferred
OpenSolaris developer build 130 or later OS installed, the very latest build from www.genunix.org is preferred
network everything with fast access to the internet
one system reserved for the instructor