How do I write a summary for a news article? And an overall summary of all the articles?

I need to write 14 individual summaries for 14 different news articles article. Because these articles all have the same theme- human rights in china, i also have to write one big summary including stuff from the news articles about the theme (human rights). I already have all the news articles and i have highlighted all the main points in each article. What should my format be like and how long should the summaries be? It would also be helpful to know exactly how to write a summary. Thanks!

Your best bet would be to summarize the leads (first paragraph) of the stories. Or look at the first three paragraphs of the stories. That is generally what the crux of the story is about.

You could summarize by writing something like, "Recent news reports about human rights in China show that ________"

Focus on the main themes and highlight at least three points from the stories. Good luck.