If you are writing annotations on a research article (for example), look at the article's introduction or abstract to determine what question the author is trying to answer. Also:
Depending on your assignment, your annotations will generally require you to do the following:
Summarize the information given in the source and note the intended audience. Ask questions such as:
Evaluate and assess the information. Ask questions like:
Reflect and react once you've summarized and assessed a source. Ask yourself how it fits into your research. State your reaction and any additional questions you have about the information in your source, such as:
Compare the sources in your annotated bibliography in terms of usefulness and thoroughness in helping to answer your research question.