I have found through teaching numerous technicians in the field it really helps when u can simplify a lot of the vocabulary into relatable terms that the student is familiar with. Example a contactor, a contactor is a switch, most people know what a switch is which now makes it easier to understand and gives you a term that's relatable and something to build on. I have found that if u can simplify things to relatable terms that the student can understand they seem way more motivated to learn because things seem easier for them to understand and relate. Giving positive feedback when they learn things also seems to motivate students gives them a sense of accomplishment and they usually want to learn more. I also really like tactile things to do if u can put the terms of something into something they can hold and see it seems to help retain the information.