The advantage of a visualiser is that unlike an OHP (over head projector) you don’t need a plastic sheet to get the projection of a document or a paper on a flat surface. The biggest advantage is that, you can easily project 3 dimensional images (likes stones, Jewellery, microorganism, insects, slides etc) which are not at all possible with any other electronic equipment. A visualiser can capture text or image up to a great detail and that's why it has started being used extensively in the publishing industry to take photographs of the branded products for the purpose of advertisement. Through a visualiser you can view negatives of a photo as positives. This is helpful for doctors, medical students and scientist who may need developed photos during there course of work in a clinic, hospital or a science lab. There is no need to buy expensive and giant photocopy machine, as visualiser is much better in photocopying. Also there is no need to buy a scanner, as a visualiser can do the job of a scanner also. Thus it is widely used not only in schools but also in libraries, museums, board rooms etc. New application of visualisers is in the field of ‘forensic science’ as forensic expert can examine an evidence without a need to touch them physically. Uses of a Visualiser:-
Ø It can project and record text, static and moving images.
Ø It can save and record whatever it can project.
Ø A Genee Vision visualiser can be used to annotate illustrations
Ø Through it teachers can demonstrate small mathematical objects like cubes, triangular scales, compass etc to the whole class.
Ø A biology teacher can use a visualiser to project larger images of a flower, bud, microbes, fruit or a vegetable.
Ø A Genee Vision visualiser can be used to document an event with the help of ICT based products.
Ø It can be used in photography to focus on a particular section of an image or group of pixels.
Ø Through it graphic artists can work on the textures, tones and shades of an image.
Ø It is an excellent tool for reading and displaying maps, stamps and all those things which require a great degree of magnification.
The visualiser has had a huge impact on teaching. It is a highly powerful teaching tool that provides the opportunity for immediate and effective feedback to pupils via peer and teacher evaluation of their work displayed on the visualiser. Texts can be shared and analysed more readily. The need for photocopying is greatly reduced and there is no longer a need to scan items ready for sharing. The zoom and freeze facilities are enormously valuable in areas such as Science e.g. the parts of a flower, seed dispersal. The split screen and mirror functions are also highly valuable in areas such as Maths and Art and Design.
ReplyDeletesource:-http://www.interactive-education.co.uk/