Download presentation
Presentation is loading. Please wait.
Published byDaisy Cummings Modified over 8 years ago
2
Any bright gets attention. This is the reason why projectors have long been popular as a medium of instruction. The lighted screen is a silent shout- a shout likely to be heard and heeded even by the most reluctant learners”
3
was a common form of still image instructional multimedia, once commonly used by educators in primary and secondary schools (K12), now overtaken by newer and increasingly lower-cost full- motion videocassettes and DVDsstill imagemultimediavideocassettesDVDs
4
A device used to view a filmstrip. The term filmstrip refers to a roll of 35mm transparent film containing a series of related still pictures shown one at a time.
6
Is a device to view photographic slides. The term slides refers to a small format photographic transparency individually mounted for one-at-a-time projection Slides are made by taking pictures with a slide film, processed, and then mounted in a 2 by 2 inch mounts.
9
Is a box with a large stage on the top surface. A lamp from inside the box is condensed by a special lens and passes through the transparency that is placed on the stage.
10
Ways in Creating Overhead Transparencies: Direct Drawing Method a method where in content is drawn or written directly on the transparency using a marking pen. Thermal Film Process a master is prepared on an ordinary paper using heat-absorbing material such as India ink, ordinary lead pencil. Or any substance containing carbon.
11
Electrostatic Film Process (Xerography) transparencies are prepared using plain paper copying machines. A master is prepared on plain paper and then photocopied. Computer-Generated transparencies are prepared with the use of computers and then printed on an inkjet or laser printer.
12
Is a device which displays opaque materials by shining a bright lamp onto the object from above.
13
is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern analog of the slide projector or overhead projector. To display images, LCD (liquid crystal display) projectors typically send light from a Metal halide lamp through a prism that separates light to three poly silicon panels – one each for the red, green, and blue components of the video signal.video projectorslide projectoroverhead projectorliquid crystal displayMetal halide lamp
15
http://en.wikipedia.org/wiki/Filmstrip http://www.irememberjfk.com/mt/2007/03/filmstrips_in_sch ool.php&imgurl http://www.irememberjfk.com/mt/2007/03/filmstrips_in_sch ool.php&imgurl http://joelnicholsblog.wordpress.com http://musicring.info/index.php?tp=81350e0ebb536599 http://www.google.com.ph/search?hl=en&q=Overhead+Proje ctor&um http://www.google.com.ph/search?hl=en&q=Overhead+Proje ctor&um http://www.tpub.com/content/draftsman/14064/css/14064_ 231.htm&imgurl http://www.tpub.com/content/draftsman/14064/css/14064_ 231.htm&imgurl http://read-technology-news.blogspot.com/2010/09/lcd- projector.html&imgurl http://read-technology-news.blogspot.com/2010/09/lcd- projector.html&imgurl
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.