Arguably the most successful module of Training within Industry is Job Instructions, or JI for short. JI has a precise focus on one topic: how to train your workers. The method is very simple and basic but works well.
Of course, there are some limitations. The process works well with pretty much any type of work, but it is best done one-on-one, as it was intended. It is not well suited for classroom teaching of larger groups; the trainer does need to invest time and attention to every individual student. But overall a very useful method. This is the second in a series of five posts on TWI.