Lecturers: Turn Lecture Slides into Course Videos

You probably have years of lecture decks already. They explain your subject well, but only when you’re standing in front of them. Turning lecture slides to video lets those decks teach on their own: before class, for revision, for students who missed the session or for an online cohort. This playbook covers which decks to start with, how to prepare them and how to get them into your course.

Read the video transcript

You already have years of lecture decks. Turned into video, they can teach on their own: before class, for revision, or for an online cohort.

Don't start with your whole course. Begin where video helps most, like one assessment explainer. Every student needs it, and it saves you answering the same emails.

A fifty-minute lecture rarely works as one fifty-minute video. Give each concept its own short video, so students can find the part they need later.

Swap dot points for what you'd actually say to a student. Short sentences work better for voices and captions, so check how technical terms are pronounced.

Pick a voice and a slightly slower speed for dense material, turn on captions, and watch it all with sound. Then download the MP4 and add it to your course yourself.

Start with one lecture: one deck and an hour. On Pro, A.I. directs the video, timing each scene to your narration. Try one on Basic at powerpoint2vid.com.

Why convert lecture slides to video

• Flipped classroom. Students watch the explanation before class, so contact time goes on discussion and problem-solving.
• Revision. Short videos are easier to revisit than a full lecture recording.
• Consistency across cohorts and campuses. Every student hears the same explanation.
• Accessibility. Narration plus captions supports students who are deaf or hard of hearing, studying in a second language or watching somewhere they can’t use sound.
• Updating. Change a slide or a sentence in the notes and export again. No need to re-record a whole lecture.

Step 1: Choose the right decks first

Don’t start with your whole course. Pick topics where video adds the most.

• Concepts students regularly struggle with. The ones you explain again in every consultation.
• Stable content. Foundational material that won’t change next semester.
• Procedures. Referencing, lab safety, assessment instructions, using a piece of software.
• Pre-class content for weeks you want to flip.

A good first project is one assessment explainer. It’s short, every student needs it and it saves you answering the same emails.

Step 2: Break a lecture into short videos

A fifty-minute lecture rarely works as one fifty-minute video. Split it into short videos, each covering one concept.

Before: “Week 3 Lecture: Cell Biology” (48 slides)

After: 1. What a cell membrane does (8 slides) 2. How substances cross the membrane (12 slides) 3. Active vs passive transport (10 slides) 4. Worked example: osmosis in plant cells (9 slides)

Each video gets its own title in the LMS, which makes it easier for students to find the part they need later.

Step 3: Tidy the slides for video

Lecture slides are often built as notes for the lecturer. For video, the slides should support the narration, not repeat it.

• One idea per slide. Split dense slides. See The One Idea Per Slide Rule (and When to Break It).
• Headlines that make a point. “Passive transport needs no energy” teaches more than “Passive transport”.
• Body text 24pt or larger. Students may be watching on a phone.
• Good contrast. WCAG AA asks for at least 4.5:1 for normal text.
• Keep the bottom of the slide clear if you’ll use captions.
• Check images and figures are licensed for reuse in a recorded format.

Step 4: Write your speaker notes as narration

If your notes are a few dot points, they’ll need rewriting. Write what you’d actually say to a student in front of you.

Before: “Osmosis - water moves high to low conc. Semi-perm membrane. Ex: plant cell in salt water.”

After: “Osmosis is the movement of water across a membrane. Water moves from where it’s more concentrated to where it’s less concentrated. The membrane lets water through but blocks larger molecules. Here’s an example. Put a plant cell in salty water and water leaves the cell. The cell shrinks.”

Short sentences work better for synthetic voices and for captions. Write technical terms out in full, and listen to how the voice pronounces them before you share the video.

Step 5: Convert and preview

With PowerPoint2Vid, the steps are:

1. Save the deck as .pptx. If it’s in Google Slides, download it as Microsoft PowerPoint (.pptx).
2. Drop it into the converter. If your slides include unpublished material, check your institution’s policy on using online tools first.
3. Make sure your speaker notes hold the narration you want.
4. Pick a voice and speaking speed. A slightly slower speed suits dense material.
5. Turn on captions.
6. Watch the whole video with sound.

For the full process, see How to Convert PowerPoint to Video: The Complete Guide.

Step 6: Add the videos to your LMS

PowerPoint2Vid gives you a video file to download, as MP4 with WebM available. It doesn’t upload directly to Moodle, Canvas, Blackboard or other platforms, so you’ll download the file and add it to your course yourself, or through your institution’s video platform.

Some tips:

• Name files clearly, for example “BIO101 W3 Osmosis”.
• Add a short description saying what the video covers and how long it runs.
• Check your institution’s caption requirements. Captions built into the video are always visible. If you need a separate caption file, use your video platform’s captioning tools; your speaker notes make a ready-made transcript.
• Link the video from the activity it supports, such as the week’s pre-class task.

Step 7: Plan for updates

Keep the .pptx alongside the video. When something changes, edit the slide or notes and export again. Note the date in the file name so you know which version is live.

Quick checklist

• Start with one high-value topic
• Split long lectures into short concept videos
• One idea per slide, readable text, good contrast
• Notes rewritten as spoken sentences
• Captions turned on, bottom of slides kept clear
• Full preview watched with sound
• Video named, described and linked in the LMS

Start with one lecture and the PowerPoint to video converter

You don’t need a studio or a microphone. You need one deck and an hour. Open the PowerPoint to video converter and drop in your lecture slides. On Pro, a.i. takes the director’s chair: it tightens the story, designs each scene and times the animation to your narration, so a lecture deck lands like a produced explainer. Try one lecture on Basic, then see Pro for a semester’s worth.