A thousand teachers, a thousand methods.
There is a huge number of teaching methods.
Some of them are teacher-centered, where the teacher is seen as the only source of information, others are learner-centered, where the focus is on what the learner can learn based on what she/he already knows.
There is the interactive approach, where students are allowed to interact with their peers to discuss a given subject matter, and there is the teacher dominated approach, where the teacher is the only voice in the class.
Some pedagogues talk about the banking approach, where teachers attempt to instill knowledge into the "empty" minds of students. In contrast, to the integrated approach, where teachers try to link previous lessons on the same and other subject matters to the current lessons they are teaching.
Some learners prefer to back their learning process by using pictures, mind maps, or colored diagrams. They seem to process information best through images. They are visual. Others prefer, or have more aptitude for, rhymes, music, and recordings, and they seem to learn best by listening. Some others are good at abstract reasoning and prefer learning alone through self-study, while others enjoy learning in groups and prefer talking and using words. Yet others learn best by using their hands and doing things by themselves. All these techniques are connected to Howard Gardner's famous idea of "multiple intelligences".
On the other hand, some people seem to learn better when they are surprised, when they are taken out of their "comfort zone", while others seem horrified with that same situation and "turn off" their brains.
As you see, there are many ways to approach education and training.