Hearing conservation training is not likely to be top priority on their list. You have to give them a reason to invest their time in what you have to say. Sending a message that OSHA required training will be held next Wednesday is unlikely to get an enthusiastic response. Adults want to learn things that will be of direct value to them . Adults want and expect their learning to be applicable to problems and situations they meet daily.
Adults have an extensive base of experience and beliefs that they bring into the training room .
Older people may not hear or see as well as younger ones. If you have a large group, you may need to speak up or use a microphone. If you have handouts or visuals, use larger type, fewer words. Power point and overhead transparencies should have no more than six lines of six words each. Some people learn better from the spoken word, some from written information, some from pictures.