Once you have taken information from a source, you need to take some time to analyse and evaluate the source to provide a critical summary of why this source is useful to your research. If you do this well during your research, you can incorporate your findings into your written essay.
IOPCAM
What is the explicit meaning of the source? (Comprehension)
What is the implicit meaning of the source? (Interpretation)
How does this source corroborate the information from another source?
How does this source contradict the information from another source?
Who created the source?
What kind and type of source is it?
From what point of view is the source created?
When and where was the source created?
What historical events happened at this time that are important to the creation of this source?
Who was the intended audience of the source?
For what purpose was this source made?
How relevant is this source to the topic you are studying?
How trustworthy is the source?