Basics of Slides

1. Understanding the Role of Slides in a Presentation

A presentation is a combination of speech and visual aids. While slides (PPTs) are commonly used, they are just one type of visual aid among many. The key purpose of slides is to support and enhance the speech, not to replace it. A common mistake is when audiences focus on slides instead of the speaker, leading to disengagement. This happens when slides contain too much information, distracting the audience from listening.

2. The Purpose of Visual Aids in Presentations

• Enhances Understanding – Visuals make complex information easier to grasp.
• Improves Retention – People remember visuals better than plain text.
• Supports Persuasion – Strong visuals reinforce key messages.

However, slides should be carefully planned to avoid overwhelming or confusing the audience.

3. Common Mistakes in Using Slides

• Overloading slides with text – The audience reads instead of listening.
• Using unnecessary visuals – Images must support the message, not distract from it.
• Not considering the audience’s viewing device – Many people view slides on mobile phones, making small text unreadable.

4. Key Principles for Creating Effective Slides

1. Complement the Speech

• Slides should support what the speaker is saying, not compete with it.
• Use minimal text – Just keywords and visuals to reinforce the message.

2. Keep Slides Simple and Clear

• Avoid excessive details – Slides are not documents.
• Use readable fonts and large text for better visibility.

3. Adapt to the Audience’s Viewing Mode

• Consider mobile users – If the audience is viewing on phones, design slides accordingly.
• Know if the audience is only listening – In audio-only presentations, slides are irrelevant.

4. Use Alternative Visual Aids

• Besides slides, other visual aids can be used:
  • Flipcharts or whiteboards for live interaction.
  • Props and models for demonstrations.
  • Videos and audio clips to enhance engagement.

5. Scientific Approach to Slide Preparation

1. Limit the Number of Slides

• Use the T ÷ 2 Rule:
  • If given T minutes for a presentation, use T ÷ 2 slides (maximum).
  • Example: 10-minute presentation = Maximum 5 slides.

2. Create Two Versions of Slides

• Presentation Slides: Designed for live speaking, with minimal text.
• Detailed Slides: Created for email sharing, containing full details.

This approach ensures that slides serve their purpose without distracting from the speaker.

6. Key Takeaways

• Slides should complement the speech, not replace it.
• Use visuals strategically to enhance understanding and engagement.
• Limit text on slides to keep the audience focused on the speaker.
• Follow the T ÷ 2 rule to determine the ideal number of slides.
• Create two versions – one for presentation, one for sharing.

By following these principles, slides become a powerful tool that supports, rather than hinders, effective communication.