Primary, Secondary, and General Sources Made Simple | made with ngram

About the video

This video was created by ngram to explain primary, secondary and general sources through a visual lesson. The video distinguishes original research from sources that explain existing research and materials that provide background information. It uses research-paper sections, a review example, general information sources and a clinical guideline question to demonstrate the categories. A quick-check sequence asks viewers to identify what a source does before assigning its type. ngram organizes the lesson with teal, navy and gray cards, simple document icons, concise definitions and on-screen captions. The final recap repeats the three categories beside a healthcare presenter image, connecting the source-evaluation lesson to research and writing.