The Fission Theory: This theory proposes that the Moon was once part of the Earth and somehow separated from the Earth early in the history of the solar system.
When you actually use that class to make a THING, this is what you make. A method is a bit of code that can be called when needed (often as part of an class, but not always) Here's an example: I write a class called Ball. In my main code, I then write a=Ball.new, b=Ball.new, c=Ball.new.
Teaching vs Training. Difference between teaching and training is that teaching is a process of imparting knowledge and skills by a teacher to a learner, which involve activities like educating or instructing while training is a learning process that involves the acquisition of knowledge, sharpening of skills, concepts and rules.