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Educational animation

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Educational animations are animations produced for the specific purpose of fostering learning.

The popularity of using animations to help learners understand and remember information has greatly increased since the advent of powerful graphics-oriented computers. This technology allows animations to be produced much more easily and cheaply than in former years. Previously, traditional animation required specialised labour-intensive techniques that were both time-consuming and expensive. In contrast, software is now available that makes it possible for individual educators to author their own animations without the need for specialist expertise. Teachers are no longer limited to relying on static graphics but can readily convert them into educational animations.

Animations for Education Edit

Educators are enthusiastically taking up the opportunities that computer animation offers for depicting dynamic content. For example, PowerPoint now has an easy-to-use animation facility that, in the right hands, can produce very effective educational animations. Because animations can explicitly depict changes over time (temporal changes), they seem ideally suited to the teaching of processes and procedures. When used to present dynamic content, animations can mirror both the changes in position (translation), and the changes in form (transformation) that are fundamental to learning this type of subject matter.

In contrast with static pictures, animations can show temporal change directly (rather than having to indicate it indirectly using auxiliary markings such as arrows and motion lines). Using animations instead of static graphics removes the need for these added markings so that displays can be simpler and less cluttered. In addition, the learner does not have to interpret the auxiliary markings and try to infer the changes that they summarise. Such interpretation and inference may demand a level of graphicacy skills that the learner does not possess. With animated depictions, information about the changes involved is available to be read straight from the display without the learner needing to perform mental animation.

Educational FunctionsEdit

Animations can function in two main ways to foster learning. First, they can have an affective function whereby they engage learner interest and sustain motivation. This function is similar to that of animations produced by the entertainment industry. However, educational animations can have a second and very different function - that of helping learners to understand and remember the content that they are required to study. This cognitive function is about facilitating knowledge-building processes that are fundamental to effective learning.

Do Animations Facilitate Learning? Edit


Some animations challenge the learner's processing capacities

On the surface, it seems that animations should be ideal for presenting dynamic content. However, research evidence about the educational effectiveness of animations is mixed. Various investigations have compared the educational effectiveness of static and animated displays across a number of content domains. While there have been some findings that show positive effects of animations on learning, other studies have found no effects or even negative effects. In general, it can be concluded that animations are not intrinsically more effective than static graphics. Rather, the particular characteristics of individual animations and how they are used play a key role in the effects that they have on learning.

Educational Effectiveness Edit

Why is it that animations sometimes lack educational effectiveness? One possible reason is that the target learners can't process the presented information adequately. For example, it seems that when the subject matter is complex, learners may be overwhelmed by animated presentations. This is related to the role of visual perception and cognition in human information processing. Our human perceptual and cognitive systems have limited capacities for processing information. If these limits are exceeded when using an animation, learning may be compromised. For example, the pace at which the animation presents its information may exceed the speed at which the learner can process it effectively. You'll probably find it quite demanding to work out exactly what's happening in the accompanying animation (part of a pumping system) for this reason. One suggestion for addressing such problems is to provide user control for the learner over how the animation plays. User controllable animations allow learners to vary aspects such as the playing speed and direction, labels and audio commentary to suit themselves.

Perceptual Salience versus Thematic Relevance Edit

Complexity of the subject matter may not be the only reason for difficulties that learners sometimes have with animations. It seems that problems can also arise from the perceptual effects of such presentations. The information that learners notice most readily in the animation may not be the information that is of greatest importance. Conversely, information that is relatively inconspicuous may be very important. You can see an example of this in the top right hand corner of the accompanying animation. Tucked away here is a small grey-coloured valve whose subtle movement lets air into this pumping system (which is where the bubbles come from). However, it's nowhere near as noticeable as the big, more central, orange-coloured valve that is going up and down so obviously.

So, perceptibility of information does not necessarily correspond with its actual relevance to the learning task to be performed. Features of the animated display that are most conspicuous because of their contrast with the rest of the display are not always the best place for learners to direct their attention. In other words, there can be a poor correspondence between the perceptual salience ('noticeability') of a feature and its thematic relevance.

This correspondence problem can occur with both static and animated graphics. On a purely perceptual level, our attention tends to be attracted by some parts of a static display more than by other parts due to their visuospatial properties. For example, an object that is centrally placed, relatively large, unusually shaped, and of a sharply contrasting colour or texture is likely to 'jump out' of the display so that we notice it very easily. Other items in the display may receive correspondingly less attention as a result. Well-designed static educational graphics take advantage of these perceptual effects. They manipulate the characteristics of the display in order to direct learner attention to the most relevant information. This helps to ensure that the learner will extract the required information from the display. There is a problem in the design of the animation shown above in this respect. Unfortunately, there are many 'educational' graphics being produced that fail to provide learners with sufficient support of this type.

Dynamic Contrast Edit

The correspondence problems due to perceptual characteristics of a display are compounded when we go from a static to an animated graphic. Because of their dynamic character, educational animations introduce a further challenge to information extraction beyond those found with static graphics. Certain aspects of a display that changes over time have the potential to capture learner attention. If there is sufficient dynamic contrast between one or more items in the display and their surroundings, the effect can be very compelling in a perceptual sense. It seems that a fundamental level, our perceptual system is attuned to detect and follow such changes, irrespective of their importance in terms of the subject matter. As with static displays discussed above, items that are perceptually compelling (in this case because of their dynamic character) may not necessarily be of great thematic relevance to the given learning task. The big orange float in the accompanying animation is far more perceptible than the small grey air valve because of both its visuospatial characteristics, and its high level of dynamic contrast with the rest of the display.

The misleading effects of dynamic contrast are likely to be particularly problematic for learners who lack background knowledge in the content domain depicted in an animation. These learners can be largely in the thrall of the animation's raw perceptual effects and so tend to process the presented information in a bottom-up manner. For example, their attention within the display is likely to be directed to items that have conspicuous dynamic characteristics. As a result, there is a danger that they will attend to unimportant information merely because it is perceptually compelling. However, learners who already have considerable domain specific background knowledge are likely to be less influenced by perception alone. This is because their attention is also directed to a considerable extent by their knowledge of which aspects of the subject matter are of most relevance (irrespective of their perceptibility). As a result, their processing of information in the display has a more top-down character. In the pumping system animation example, the air valve would be noticed by those who are already familiar with pumps in general because their existing background knowledge would put them on the lookout for crucial (but visually insignificant) parts of the mechanism.

References Edit

  • Faraday, P. F., & Sutcliffe, A. G. (1996). An empirical study of attending and comprehending multimedia presentations. Paper presented at the ACM International Conference on Multimedia 96, Boston, USA.
  • Faraday, P. F., & Sutcliffe, A. G. (1997). Designing effective multimedia presentations. Paper presented at the CHI 97, Atlanta, USA.
  • Hegarty, M., & Sims, V.K. (1994). Individual differences in mental animation during mechanical reasoning. Memory & Cognition, 22, 411-430.
  • Lowe, R.K. (2003). Animation and learning: Selective processing of information in dynamic graphics. Learning and Instruction. 13, 247-262.
  • Lowe, R.K. (2004). Interrogation of a dynamic visualization during learning. Learning and Instruction, 14, 257-274.
  • Mayer, R.E., & Moreno, R. (2002). Animation as an aid to multimedia learning. Educational Psychology Review, 14, 87-99.
  • Palmer, S., & Elkerton, J. (1993). Animated demonstrations for learning procedural computer-based tasks. Human-Computer Interaction, 8, 193-216.
  • Schnotz, W., Böckheler, J., & Grzondziel, H (1999). Individual and co-operative learning with interactive animated pictures. European Journal of Psychology of Education, 14, 245-265.
  • Tversky, B., Morrison, J. B., & Bétrancourt M. (2002). Animation: Can it facilitate? International Journal of Human-Computer Studies, 57, 247-262.

External linksEdit

PowerPoint Heaven - The Power to Animate Contains tutorials on creating amazing animations for your PowerPoint Presentations.

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