Final answer:
The process of modifying a presentation is called revising, which may include rearranging, adding, or deleting content to enhance the presentation's effectiveness.
Step-by-step explanation:
The process of modifying a presentation by adding and deleting slides, or by changing the contents of individual slides is referred to as revising. This often involves the strategic arrangement of content to improve the clarity and impact of a presentation. For example, when crafting a presentation on a complex topic like the war in Syria, a student may rearrange the order of photographs, add new images, or select specific photos to align with the accompanying audio based on feedback or further reflection. In the context of PowerPoint lecture slides, instructors might use provided slides as a foundation and then revise them to tailor the content to their specific teaching style or educational goals. These slides typically include learning objectives, outlines, images, feature focuses, and discussion questions as starting points.