coordination : connect ideas equal importance
subordination : Connect importan ideas wihtles important ideas.
* use connecting word
1. coordination : use conjunction and conjunctive adverbs.
2. subordination : use conjunctions and relative pronouns.
* coordinate adverbs : also, besides, furthermore, however, instead, meanwhile, moreover, nevertheless, therefore, thus.
* relative pronouns : that, who, whom, whose, which.
conjunction: 
For, and, nor, but, or, yet, so. ( coordinate adverb ).
Although, because, evenif, since, until, while, ( relative pronouns ).
Example:
1. coordination 
susan for got to set her alarm, so she over slept ( coordinating conjunction)
2. subordination
susan for got to set her alarm because she was tired ( subordinating conjunction ).