How to improve English speaking and writing for people who are not from English background?

Brother Step is They must know  how to read English and understand Alphabet .

And second thing is you need to provide them English news paper and Oxford and any other Suitable Dictionary in English to English

Third Thing is Provide English Movies or English Documentary 

And I hop it will Work 

 ...storytelling would help and discussing in english in small groups improves simple english speaking

You have to test your speech and written work by communicating, speaking and writing to native speakers. 

They watch english movies with subtitles... listenig english songs... try to spaek in english..