This "method" is not generally recognized and not used in public education but is used by crappy training centres for "edutainment". Rubbish, rubbish, rubbish!

Showing your complete and utter ignorance here, Turnoi. It is used all over the world by public and private schools to teach young learners a second language.

As I thought, all you have done is prove your utter inability to comment on this area of teaching!