The electronic presentations They are a didactic resource where audiovisual elements are used to create digital slides. These slides are supported by multimedia resources such as videos, animations, audios or graphics.
Electronic presentations are a visual support when the speaker is transmitting information on a topic, and are projected through a computer. In these slides you can create texts, diagrams and the important points of the conference, class or exhibition that is being done.
They are made on a computer, and they are an attractive way to capture the attention of the public. Power Point is one of the tools that is often used to create these computer products in the form of sheets or slides. Pages like Slideshare uses them as part of its information strategy to present the concepts it offers.
To reproduce the electronic presentations you will need a computer and a video projector. Previously, projectors were used, which had a slot to insert the slides.
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Electronic presentations serve to illustrate and support any exhibition, keep the audience's attention through images and highlight relevant information, and also organize it.
They are a way of energizing oral presentations, such as speeches, conferences, workshops or classes, and a very effective resource for transmitting information to a large audience and keeping them interested..
They also help convince the audience, especially when it comes to advertising presentations to potential clients. In this sense, they serve to motivate and sell, and can be a deterrent resource.
In the educational field, they are usually an element of great impact, since they reinforce learning through images, specific texts, videos and animations, and multiply their communication power..
As a teaching resource, they allow the audience to more easily grasp the content of the talk. It is said that an exhibitor can express up to 130 words per minute, but the receiver can only take notes of 40 words per minute; the presentations allow time to better understand the concepts and ensure a higher percentage of transmission and effectiveness of the message.
In short, they meet different and defined objectives, depending on the nature of the exhibition, and function as a kind of script for the lecturer, who will be able to paraphrase what is written in view of all.
The content on each slide or slide must be direct, precise, and concise. It is not advisable to fill it with text or objects (such as tables, graphics, etc.) because visually it will look very overloaded.
Rather, each slide should refer to a specific point in the lecture, and serve as didactic support and reinforcement..
The size of the letter, the font used, the line spacing, all these typographic elements, must be consistent. The size of the letters should be large enough so that reading them does not constitute an additional effort that interrupts the attention of the viewer..
The typeface cannot be a decorative element; word processing packages usually include a very large variety of fonts, and it is best to choose one that is easy to read, round and clear, avoiding those script or gothic style types, which do not facilitate reading (the most recommended are Verdana, Times New Roman or Tahoma).
In any case, the types of source used should be limited to three, as more of that tends to become visual noise.
The spacing will have to be appropriate and comfortable to look at, with which the sheets are not cluttered.
Although the images are independent, they must always allude to the ideas expressed in the class or conference, otherwise they become noise.
The images can be graphics, mind maps, drawings, photographs or any type of illustration.
Electronic filings must have the information outlined. This is the only way to communicate effectively. In this sense, schematizing the data serves both for the speaker (who clarifies to himself the concepts he is explaining) and for the listeners, who will better retain what is said to them..
It could be said that the elements of an electronic presentation are basically two: the text and the image. We could add the format or design and the parts in which the presentation is divided.
As we mentioned before, the text must be clear and concise, each sheet containing a single concept. If possible, avoid filling the slide completely, this gives a confusing impression. A good slide will contain between 30 and 50 words.
The text will be aligned, and the alignment can be used to differentiate the slides. For example, use a centered alignment for central concepts, to the right to indicate quotes or examples, and to the left for basic concepts. The alignment gives a sense of order.
As for the number of slides with text, logically it will depend on the length of the talk, but as a general rule 15 will be enough.
On the other hand, the presentation works like the exhibitor's notes: the notes are not extensive, they are only the main ideas on which you will develop the content of the talk. This is how the slides should also be presented, as notes.
Images are a resource to clarify concepts, “see” graphically what has been explained in words. As an image, their function is mnemonic, that is, they help to remember.
In the case of graphs, they must be made in the most attractive way possible, as they reinforce the cognitive function that allows the public to understand more complex data, such as figures.
The format includes all those visual resources that generate coherence and clarity in the slides. In this sense, all the sheets must present the same range of color and background..
An overly colored slide makes reading difficult, distracting, and does not serve as a supportive role. It is better to opt for light colors for the background and a darker color for the typography. Showy margins and frames should be avoided as much as possible: they are visual noise.
Experts recommend that up to three colors be used: one very light base for the background, one for the body (usually black) and one for the titles, which you can combine with the other two and highlight the levels.
The parts of an electronic presentation are the cover, the body and the references.
The title of the talk, the author and the topics to be developed should be mentioned on the cover, presented very briefly.
It is the central and main part of electronic presentations. Here are all the slides of the talk, both those that contain text and images.
It is where all the sources consulted to prepare the presentation are cited. They are the final sheets.
The YouTube platform usually uses electronic presentations to support its contents, as well as SlideShare; the latter always presents the information in sheets.
The most used programs are Microsoft Power Point, OpenOffice and Prezi. The first two create slides in which text boxes, images - drawings, graphics - and videos are inserted..
Prezi is an online application based on a canvas, rather than separate slides. It is a kind of visual map that allows a non-linear structure, using zoom on each object. With its free version you can edit, teach and download the presentations.
Examples of electronic presentations can be seen in the following links:
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