The Google Slide presentation posted here provides an introduction to using sources effectively. Click on the arrow to start the slide show, or click on the square icon to view it in full screen mode. It will be easier to read in full screen mode because it contains a large amount of text.
If you prefer to view the original PowerPoint presentation, download it here. Teachers, feel free to edit, customize, and share the PowerPoint with your own students. Please do not use for commercial purposes without permission or post publicly without attribution.