How to Balance Text and Visuals in Science Slides

People's brains can only do one thing at a time. In live presentations, text-filled slides will lead the audience to stop listening and start reading the slide. Their brains can either read, or they can listen. When you think about what goes on your slides, think about elements that are communicated much better visually. Graphs, charts, pictures are all examples of visuals that communicate information much more efficiently and effectively than can usually be done in words. But, a written version of your talk track is not a great use of slide space - remove that from the slide and speak to it instead. It makes for a cleaner slide and makes the audience dependent on the speaker for the "so what" or the significance of the slide. So for your next presentation, think about slides with fewer words, more visuals, and a verbal presentation that adds further context and explanation to what the audience sees on the slide. 

Why showing text and graphics simultaneously is like trying to watch two movies at once - and the better alternative backed by research. Your brain has limits. Let's use them wisely. Most eLearning overloads learners with: ↳ Dense text blocks ↳ Complex graphics ↳ Information overload Here's the science-backed solution: 1️⃣ Split Processing Power • Your brain has two channels • Visual for graphics/images • Auditory for spoken words • Don't max out either one 2️⃣ The Power of Voice • Narration > on-screen text • Frees up visual processing • Reduces cognitive strain • Better retention rates 3️⃣ Strategic Implementation • Use audio for explanations • Keep visuals clean and focused • Sync narration with graphics • Let each channel do its job Real-world application: ☑️ Replace text walls with narration ☑️ Sync audio/visual timing perfectly ☑️ Save text for key terms only ☑️ Design for dual-channel processing The results? ↳ Reduced cognitive load ↳ Improved engagement ↳ Faster learning curves The secret isn't more content. It's smarter delivery. Your learners' brains will thank you. What small change could you make in your next course to ease your learners’ cognitive load?

If you want your next presentation to inform, engage, and stick, this is the framework you need….. One of my best reads (A summary) Fact: AI slide generators won’t save you. Powerful slides aren’t about automation. Slides aren’t filler. They’re the frame that holds your message; visually, cognitively, and emotionally. A single slide can speak more powerfully than 10 spoken minutes when done well. ——————————————— ➊ 𝗢𝗻𝗲 𝗶𝗱𝗲𝗮 𝗽𝗲𝗿 𝘀𝗹𝗶𝗱𝗲 ➜ A slide = one thought. No more. No less. 📌 Break complex ideas into digestible visuals. ➋ 𝗧𝗵𝗲 “𝟭 𝗺𝗶𝗻𝘂𝘁𝗲 𝗿𝘂𝗹𝗲” ➜ If it takes longer than a minute to explain a slide… 📌 It’s doing too much. Cut or split it. ➌ 𝗨𝘀𝗲 𝗵𝗲𝗮𝗱𝗶𝗻𝗴𝘀 𝗮𝘀 𝗺𝗲𝘀𝘀𝗮𝗴𝗲𝘀 ➜ “Results” isn’t a heading. 📌 Try: “This method increases accuracy by 37%.” ➍ 𝗘𝗱𝗶𝘁 𝗿𝗲𝗹𝗲𝗻𝘁𝗹𝗲𝘀𝘀𝗹𝘆 ➜ If you won’t speak to it, delete it. 📌 Every extra label is cognitive noise. ➎ 𝗚𝗶𝘃𝗲 𝗰𝗿𝗲𝗱𝗶𝘁 𝗼𝗻 𝘁𝗵𝗲 𝘀𝗹𝗶𝗱𝗲 ➜ Add references as you build, not at the end. 📌 A polished slide acknowledges others. ➏ 𝗕𝘂𝗶𝗹𝗱 𝗮𝗿𝗼𝘂𝗻𝗱 𝗴𝗿𝗮𝗽𝗵𝗶𝗰𝘀 ➜ Visuals aren’t decoration; they’re delivery tools. 📌 Avoid text-only slides. Always. ➐ 𝗠𝗶𝗻𝗶𝗺𝗶𝘇𝗲 𝗰𝗼𝗴𝗻𝗶𝘁𝗶𝘃𝗲 𝗼𝘃𝗲𝗿𝗹𝗼𝗮𝗱 ➜ 6 elements max. 📌 Use white space, bold selectively, and avoid clutter. ➑ 𝗗𝗲𝘀𝗶𝗴𝗻 𝗳𝗼𝗿 𝗱𝗶𝘀𝘁𝗿𝗮𝗰𝘁𝗲𝗱 𝗮𝘂𝗱𝗶𝗲𝗻𝗰𝗲𝘀 ➜ If they hear nothing, can they still see the takeaway? 📌 Assume your viewer is half-tuned in and still make an impact. ➒ 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗲 = 𝗦𝗹𝗶𝗱𝗲 𝗲𝗱𝗶𝘁𝗼𝗿 ➜ Your transitions reveal your thinking. 📌 Practicing reveals which slides don’t flow. ➓ 𝗠𝗶𝘁𝗶𝗴𝗮𝘁𝗲 𝗱𝗶𝘀𝗮𝘀𝘁𝗲𝗿 ➜ PDFs > animations. Backup slides > failed videos. 📌 Assume something will break and prepare for it. ——————————————— 📍Your slides are not your script. They’re not your paper. They’re your audience’s window into your idea. Make every second of their attention count. 💬 Which slide mistake are you guilty of and ready to fix? ♻️ Repost to help someone transform their next research talk. 📄 Reference: Naegle, K. M. (2021). Ten simple rules for effective presentation slides. PLOS Computational Biology, 17(12): e1009554. #PresentationTips #SlideDesign #AcademicCommunication