Module: Visual Aids and Technology

Using Slides Effectively

Effective Public Speaking: Visual Aids & Technology - Using Slides Effectively

I. The Purpose of Slides: Support, Not Replace

  • Slides are aids, not the speech. They support your message, they don't deliver it. You are the presenter, the slides are a visual reinforcement.
  • Focus on audience understanding. Slides should clarify complex ideas, illustrate points, and enhance retention.
  • Avoid reading your slides. This disengages the audience and undermines your credibility. They can read faster than you can!
  • Think of slides as billboards. Quick, impactful, and easily digestible.

II. Content: Less is More

  • The 6x6 Rule (a guideline): No more than 6 lines of text per slide, and no more than 6 words per line. Adapt as needed, but prioritize brevity.
  • Key Phrases, Not Sentences: Use keywords and phrases to trigger your memory and guide your explanation.
  • One Idea Per Slide: Avoid cramming multiple concepts onto a single slide. This leads to confusion.
  • Data Visualization:
    • Charts & Graphs: Choose the right chart type for your data (bar, pie, line, etc.). Label clearly!
    • Simplify Complex Data: Highlight key takeaways. Don't present raw data dumps.
    • Tell a Story with Your Data: Explain the meaning of the data, not just the numbers.
  • Images & Visuals:
    • High-Quality Images: Use professional, relevant images. Avoid pixelated or cheesy stock photos.
    • Visual Metaphors: Images can powerfully illustrate abstract concepts.
    • Image Copyright: Ensure you have the rights to use any images. (Creative Commons, purchased licenses, etc.)
  • Avoid:
    • Large blocks of text.
    • Excessive animation/transitions (see section IV).
    • Clutter.
    • Irrelevant images.

III. Design Principles: Clarity & Consistency

  • Color Scheme:
    • Contrast: Ensure sufficient contrast between text and background. (Dark text on light background is generally best).
    • Limited Palette: Stick to 2-3 complementary colors. Avoid jarring combinations.
    • Accessibility: Consider colorblindness. Avoid relying solely on color to convey information.
  • Font Choice:
    • Readability: Use clear, sans-serif fonts (e.g., Arial, Helvetica, Calibri) for body text.
    • Font Size: Ensure text is large enough to be read from the back of the room. (Minimum 24pt for headings, 18pt for body text).
    • Consistency: Use the same fonts throughout your presentation.
  • Layout:
    • White Space: Use white space (negative space) to create visual breathing room.
    • Alignment: Align elements consistently for a clean, professional look.
    • Visual Hierarchy: Use size, color, and placement to guide the viewer's eye.
  • Branding: If appropriate, incorporate your organization's logo and branding guidelines.

IV. Technology & Delivery: Smooth Execution

  • Software Options: PowerPoint, Google Slides, Keynote, Prezi (consider audience familiarity).
  • Animation & Transitions:
    • Subtlety is Key: Use animations and transitions sparingly. They should enhance, not distract.
    • Purposeful Animation: Use animation to reveal information gradually or emphasize a point.
    • Avoid Distracting Effects: Spinning, flying, or overly elaborate transitions are generally unprofessional.
  • Remote Control/Presenter View: Practice using a remote control or presenter view to navigate slides smoothly.
  • Backup Plan: Always have a backup plan in case of technical difficulties (e.g., a PDF version of your slides, printed handouts).
  • Practice with the Technology: Familiarize yourself with the equipment and software before your presentation.
  • Don't Turn Your Back: Maintain eye contact with the audience as much as possible. Use presenter view to see your notes without turning away.
  • Timing: Pace yourself and ensure your slides align with your speaking time.

V. Accessibility Considerations

  • Alt Text for Images: Add alternative text descriptions to images for visually impaired audience members using screen readers.
  • Sufficient Contrast: As mentioned before, crucial for those with low vision.
  • Clear and Concise Language: Avoid jargon and complex sentence structures.
  • Captions for Videos: Provide captions for any videos included in your presentation.
  • Large Font Sizes: Helpful for everyone, especially those with visual impairments.

VI. Resources