An interesting part of adult learning is the eager attitude towards hands on in the lab. They seem to be almost impatient to listen and watch a demonstration, but usually they do until the major points have been made. Now it's their turn. They prefer to use the information in the demonstration and proceed at their own pace. They would rather make a small mistake and correct it then they would for someone to intercede in the process. Use of materials is a far more studied process for the adult learner. Reading and re-reading instructions seems to be the norm, depending on the material, it's possible hazardous properties and the cost of the materials.