How to Make a Great School Slideshow (Google Slides or PowerPoint)
By the School Project Lab Team · Updated · 6 min read · Middle School (6–8)
In this guide
A great school slideshow has one main idea per slide, very little text, large readable fonts, strong images, and a speaker who knows the material without reading the screen. Whether your student uses Google Slides or PowerPoint, the process is the same: outline first, design simply, then practice out loud.
This guide is aimed at middle schoolers and the parents helping them. It walks through planning, design, images, citations and delivery, with the mistakes that most often cost points.
Step 1: Outline Before You Open the Program
It's tempting to open a blank presentation and start picking themes. Resist that. Good slideshows start on paper.
- Read the assignment. Note the time limit, required topics, number of sources, and any rules about slide count or citations.
- Write your main message in one sentence. Everything in the slideshow should support it.
- List three to five main points. These become your sections.
- Sketch each slide as a box on paper: a heading plus a note about what image or bullet points go there.
- Plan the opening and closing. Start with something interesting and end with a clear summary or takeaway.
A typical structure:
| Slide | Purpose |
|---|---|
| 1 | Title, your name, class |
| 2 | Hook or introduction |
| 3 to 7 | Main points, one per slide or short section |
| 8 | Conclusion or key takeaways |
| 9 | Sources |
Adjust to the time limit and the rubric. Your teacher's instructions always come first.
Step 2: Design Slides That Are Easy to Read
Keep text short
The audience can't read and listen at the same time very well. Slides should support your words, not repeat them.
- One idea per slide.
- A short heading that tells the main point.
- A few brief bullets or a single key sentence.
- Put details in your speaker notes, not on the slide.
Both programs have a speaker notes area under each slide. Use it for the full explanation you want to say.
Choose readable fonts and sizes
- Use a simple, clean font for both headings and body text.
- Make text large enough to read from the back of a classroom. Body text that looks big on your laptop often looks small on a projector.
- Stay consistent. Same font, same heading size and same colors on every slide.
Pick a simple theme
Built-in themes are fine, but choose a plain one. Busy backgrounds, heavy patterns and dark photos behind text make slides hard to read.
- High contrast: dark text on a light background, or light text on a dark background.
- Two or three colors used consistently.
- Avoid red and green together as the only way to show a difference, since some people have trouble telling them apart.
Use layouts and alignment
Use the program's built-in layouts (title and content, two columns, image with caption) instead of placing boxes randomly. Both programs show alignment guides when you drag items; use them to line things up neatly.
Step 3: Use Images, Charts and Media Well
Visuals make a slideshow memorable, but only when they add meaning.
- One strong image beats five small ones. Make it large.
- Choose images that explain, like a diagram, map, photo of the real thing or a chart of your data.
- Make charts simple. Label axes, use a clear title and avoid 3D effects that distort the numbers.
- Keep videos short and check that they'll play in your classroom. Download or embed them in advance if the teacher allows, and have a backup plan.
- Use animations sparingly. A simple appear or fade can help reveal points one at a time. Spinning or bouncing effects distract and can look unprofessional.
Using images honestly
Not every picture online is free to use. Good options include images you took or drew yourself, images your school provides, and images labeled for reuse. Both Google Slides and PowerPoint include built-in image search or stock image tools, but still check the usage terms shown with each image. Credit the source either in a small caption or on your sources slide.
Parent tip: Ask your child to explain each slide to you without looking at the screen. If they can't, the slide may be holding information they don't really understand yet. That's a great moment to send them back to their research, rather than filling in the gaps yourself. It's also a good time to check that any AI tools or outside help were used only in ways the teacher allows.
Step 4: Add Sources the Right Way
Citing sources shows honesty and is often part of the grade.
- Track sources as you research. Keep a list with the title, author or organization, website or book, and date you accessed it.
- Use the format your teacher requests, such as MLA or APA. If unsure, ask.
- Make a sources slide at the end. List sources clearly and keep the font readable.
- Credit images, either under each image or on the sources slide.
Many school library databases and word processors include citation tools that help format sources, but double-check what they produce.
Step 5: Practice and Deliver With Confidence
A beautiful slideshow can still fall flat if the speaker reads every word.
- Rehearse out loud with the slideshow running, several times over a few days.
- Use presenter view if available. It shows your speaker notes and the next slide on your screen while the audience sees only the current slide.
- Time yourself and trim if you're over.
- Face the audience, not the screen. Glance at the slide to stay on track, then turn back.
- Practice clicking. Know whether you'll use the keyboard, mouse or a presentation clicker.
- Prepare a backup. Save a copy to a flash drive or download it as a PDF, and email or share it to yourself in case the classroom computer has trouble.
Quick Checklist
Tap the boxes as you go — progress saves on this device only.
- Read the assignment and time limit
- Write your main message in one sentence
- Sketch your slides on paper first
- Use one idea per slide
- Keep words short and fonts big
- Pick a simple theme with good contrast
- Add clear images and label charts
- Write down every source you use
- Make a sources slide at the end
- Practice out loud with the slides
- Save a backup copy
Time and Cost Estimate
| Item | Estimate |
|---|---|
| Prep time (research and outline) | 2 to 5 hours |
| Build time (making slides) | 2 to 4 hours |
| Typical cost | $0 (free programs) to $25 (optional clicker) |
| Difficulty | Moderate |
Google Slides is free with a Google account, and many schools provide access to PowerPoint, so most students won't need to buy software.
Common Slideshow Mistakes
Too much text. Walls of words make audiences stop listening. Move details to speaker notes.
Reading the slides aloud. If the slide says it, the audience already read it. Add explanation and examples instead.
Inconsistent design. Different fonts and colors on every slide look disorganized. Pick a style and repeat it.
Tiny visuals. Images and charts should be large enough to see from the back of the room.
No backup. Technology fails. Bring a copy in more than one format.
Last-minute work. Building slides the night before leaves no time to practice, which is where the presentation actually improves.
Google Slides and PowerPoint are powerful tools, but the real work is clear thinking and practice. When your student plans on paper, keeps slides simple and rehearses until they can explain each point in their own words, the slideshow becomes something they're proud to present.
Frequently asked questions
How many slides should a school presentation have?
It depends on the time limit and your teacher's rubric. A common approach is roughly one slide per minute of speaking, plus a title slide and a sources slide, but always follow the assignment instructions.
How much text should go on each slide?
Keep it to a short heading and a few brief bullet points or one key sentence. The slide supports what you say; it shouldn't contain your whole speech.
Can I use any picture I find online?
Not every image is free to use. Use images your teacher approves, ones you made yourself, or ones labeled for reuse, and credit the source on your slide or sources page.