My favourite method was the official Rubik's Cube solution - there are clear and easy to follow diagrams for every step of the process - which makes it much easier for children to follow along with.
When they all fell apart, Rubik persevered, ultimately finding the solution in the form of a well-concealed mechanism. It successfully held together the cube, updated in plastic and now defined by ...
Solving Rubik’s Cubes is a learnable skill. However, to compete at the top level, you’ll have to train hard. Speed cubers can solve a 3×3 cube in under ten seconds these days, after all.