Synthesize information from multiple short sources into one set of organized, paraphrased notes grouped by subtopic rather than by source.
Synthesis means combining information from more than one source into one new, organized understanding -- not just copying each source's notes one after another. Weak notes are organized by source ("what Source A said," then "what Source B said," then "what Source C said"). Strong synthesis notes are organized by SUBTOPIC, pulling in whichever source is relevant to each subtopic as needed, with a quick citation tag so you can trace each idea back to where it came from.
Take medieval craft guilds as an example. Source A describes how a boy became an apprentice, bound to a master craftsman for several years to learn a trade. Source B describes how guilds set strict rules on the quality and price of goods, to protect both customers and members' reputations. Source C describes guild feast days and shared religious and social life among members. Weak notes would summarize A, then B, then C in order. Strong synthesis notes would organize by subtopic -- "Training" [A], "Rules and Standards" [B], "Community Life" [C] -- so a reader instantly sees the full picture of guild life organized by idea, not by which source happened to mention it.
Mastery looks like: They can take several short source snippets and reorganize them into paraphrased notes grouped by subtopic, with citation tags preserved.
Common stumbles: Copying a source's exact wording into a new subtopic order and calling it synthesis, rather than genuinely restating ideas in one's own words.
See it visually
Interactive, spoken-aloud tools that show this idea in motion.