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Fill gaps in lecture slides: a guide for students in Ireland

By · Notibo

Published · 6 min read · updated

Key takeaways

  • A slide heading and an explanation are different kinds of information.
  • Label what the source says, what you inferred and what you still need to ask.
  • Check a repaired explanation against a course source before turning it into a revision question.

To turn incomplete lecture slides into useful notes, identify the missing explanation before adding more text. Mark what the slide actually states, what you think it means and what still needs checking. Then use the assigned reading, your own lecture notes or clarification from the lecturer to repair the gap. Do not let a plausible guess become a course fact.

This workflow is for an Irish university module where your learning platform holds slides that make little sense on their own. It complements the guide to notes in lectures and tutorials, concentrating on the repair work after you have collected the material.

What kind of gap are you looking at?

Open one slide and describe the problem precisely. It may contain an unexplained acronym, a diagram without a clear relationship, a conclusion without supporting reasoning or an example whose purpose you missed. These are different repair tasks, even though they all feel like “bad notes”.

Check the surrounding slides before seeking another source. A symbol might be defined at the start of the deck, and a later slide may answer the question. Record the slide number and module topic so you can return to the exact location.

University of Galway's note-taking guidance recommends recording the module, date and topic, and adding notes around supplied slides. That makes a useful foundation for tracing each repaired explanation back to its context.

Use three labels in your working document

Write “source” beside a statement directly supported by the material, “interpretation” beside your attempted explanation and “question” beside something unresolved. These are labels you apply yourself, not a feature you need a particular app to provide.

For example, a slide may show two arrows leading to one outcome. “The diagram contains two proposed influences” describes the source. “The influences probably act independently” is an interpretation unless the material establishes it. “Can both influences operate at once?” is a question worth taking to the tutorial.

How do you find the explanation without reopening the whole module?

Start with the reading attached to that lecture. Use the slide's technical term, figure label or named model to find the relevant section. Read enough surrounding text to check the meaning. A matching word alone does not prove that two passages discuss the same claim.

Next, inspect your own notes. You may have captured a short example or a qualification that supplies the missing link. Preserve the wording carefully if it changes the scope: “in this example” should not become “always”. If your note is ambiguous, keep the ambiguity visible.

An authorised lecture recording can help if you have access and the relevant use is allowed. Use its topic structure or your own time reference to locate the explanation. Access to a recording does not automatically establish permission to download it or send it to another service; the separate guide to recording lectures in Ireland covers the institutional questions to check.

Ask for one connection, not a replacement lecture

If the gap remains, formulate it as a connection you cannot follow. “How does the result on slide 18 support the conclusion on slide 19?” is easier to answer than “Could you explain all of week four again?” Include your attempted interpretation so the lecturer or tutor can identify the misunderstanding.

When you receive an answer, add it to the same note with a date and context. Do not leave the clarification in an unrelated message thread, where you may fail to find it when revising.

What should a repaired note contain?

Use a short structure: claim, explanation, example and boundary. The boundary records where the explanation stops applying or what has not yet been established. If the course has not supplied a boundary, say that you still need to clarify it rather than inventing one.

Element Question your note should answer
Claim What does this part of the lecture say?
Explanation What connects the evidence or steps to that claim?
Example Can I show how it works in a specific case?
Boundary What qualification or unresolved point must remain visible?

This is a suggested editing format. It is not a universal account of how every discipline presents evidence. In a proof, a textual analysis and a practical demonstration, the relevant kind of support will differ.

Trinity's electronic-notes resource encourages students to work with examples and explanations rather than merely collect lecture material. Use your repaired note for that kind of attempt: close the deck and explain the relationship without reading your paragraph aloud.

Test the note on a neighbouring example

Choose another example already authorised for the module. Can your explanation handle it? If you can only repeat the original case, identify what information the new case requires. That may expose a remaining gap more clearly than rereading the repaired paragraph.

Do not erase the original slide or your first attempt. A short correction note can prevent the same mistaken interpretation returning later. For example: “I initially read the arrow as a sequence; the tutorial clarified that it indicates a comparison.”

How do you stop repair work becoming endless?

Set a clear stopping condition for the session. It could be “I can explain this diagram and name the source for each connection” or “I have written the precise question I need answered”. Both are useful outcomes. An hour spent adding background that never resolves the original uncertainty is not the same thing.

Keep the remaining gaps in a short list ordered by their relevance to the next task. If the missing concept is required for a tutorial tomorrow, prioritise it over polishing notes from a topic you can already use. Do not infer exam importance solely from how many slides a topic occupies.

Can Notibo help organise the material?

Notibo accepts PDF, PPTX and DOCX documents and can generate notes and flashcards from them. A permitted slide deck can therefore provide a starting outline. Check the output against the original and your assigned reading, especially where the deck contains diagrams, formulas or fragments of text.

The software cannot establish an explanation that the source never supplied. Its notes are editable, so you can correct checked details. Generated flashcards cannot currently be edited individually; keep any necessary corrected questions in your own study document.

The guide to PDF and slide-based study notes covers the broader workflow. For this task, start small: try one deck in Notibo for students, identify one gap the output has or has not helped resolve, and check that explanation before making it part of your revision.

Frequently asked questions

Should I copy every slide into my notes?
Keep the original slides available, but use your working notes for explanations, connections and unresolved questions. Repeating a heading does not supply the explanation that is missing.
What if there is no lecture recording?
Use the assigned reading, your own notes and clarification from the lecturer or tutor. Keep the gap visible until you have an adequate source; a fluent generated explanation is not evidence of what was taught.
Can Notibo reconstruct what the lecturer said from slides alone?
No such reconstruction is guaranteed. Notibo can generate notes and flashcards from uploaded slides, but you must verify explanations and omissions against the course material.

Sources

  1. University of Galway: Top Tips for Note-Taking (Checked 10 October 2026. Labelling notes and adding information around supplied slides.)
  2. Trinity College Dublin: Taking Electronic Notes (Checked 10 October 2026. Working actively with lecture notes and examples.)

About the author

Farhad Ba-Ali

Farhad Ba-Ali builds Notibo in Odense, Denmark. He writes about study methods, memory and note-taking from the questions students send in, and from what the product's own data shows.

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