CRT Monitors Sort for c athode- r ay t ubes , CRT monitors were the only choice consumers had for monitor technology for many years. Cathode ray tube (CRT) technology has been in use for more than 100 years, and is found in most televisions and computer monitors. A CRT works by moving an electron beam back and forth across the back of the screen. Each time the beam makes a pass across the screen, it lights up phosphor dots on the inside of the glass tube, thereby illuminating the active portions of the screen. By drawing many such lines from the top to the bottom of the screen, it creates an entire screen of images. LCD/Flat panel Monitors Short for l iquid c rystal d isplay , LCD technology can be found in digital watches and computer monitors. LCD displays use two sheets of polarizing material with a liquid crystal solution between them. An electric current passed through the liquid causes the crystals to align so that light cannot pass through them. Each crystal, therefore, is like a shutter, either allowing light to pass through or blocking the light. Color LCD displays use two basic techniques for producing color: Passive matrix is the less expensive of the two technologies. The other technology, called thin film transistor ( TFT ) or active-matrix , produces color images that are as sharp as traditional CRT displays, but the technology is expensive
Message of the day <ul><li>If you keep rephrasing the question, it gradually becomes the answer. </li></ul><ul><li>~Robert Brault </li></ul>
Introduction: <ul><li>In the late 1980s and 1990s, multimedia has been used as an instructional aide. </li></ul><ul><li>It is an advanced form of projector. </li></ul><ul><li>Multimedia merges multiple levels of learning into an educational tool that allows for diversity in curricula presentation. </li></ul>
Definition Multimedia is an electronic device that is used to project images, stories, movies and slides in an expanded form to make it visible and attractive .
According to Fenrich, Multimedia is the exciting combination of computer hardware and software that allows you to integrate video, animation, audio, graphics, and test resources to develop effective presentations on an affordable desktop computer. (Fenrich, 1997)
Concept: Multimedia is used any time one medium of communication is coordinated with another medium to transmit information in some unified manner The most common methods of presenting multimedia may combine any of the following.
Paper based-books ,magazines, brochures Light based- slide shows ,overhead transparency presentations Moving images based-television broadcasts, VCR, films Digital based- computer devices, most commonly a monitor, audio speakers, keyboards and mouse. Audio based- record players, CD players, cassette tape player, and radio.
History: The term "multimedia" was coined by Bob Goldstein to promote the July 1966 opening of his "Light Works at L'Oursin" show at Southampton, Long Island. by the 1990s 'multimedia' took on its current meaning.
Benefits of Multimedia: Multimedia benefits are: It presents complete visuals of information by audio, graphics and texts. creates a real life situation for the learner It enhances the impact of information on the mind of the learner.
continue... <ul><li>prepared once can work for a long time. </li></ul><ul><li>It gives more opportunity to be creative. </li></ul><ul><li>A boring or a complicated matter could be presented in an interesting manner. </li></ul>
Classroom management of multimedia projects Managing a cooperative learning activity requires special preparations like : Select the topic/area. Set clear objectives for the groups. plan opportunities for group. Monitor the groups carefully. Find ways to offer positive feedback to groups that are performing well .
Group building: <ul><li>Following are some important thing while making groups. </li></ul><ul><li>Strength should be not more then 4-6 members. </li></ul><ul><li>Group should be heterogeneous . </li></ul><ul><li>Identify the abilities of students e.g. searching, typing etc </li></ul><ul><li>Each member should be of different ability. </li></ul><ul><li>Assign roles according to ability . </li></ul><ul><li>Provide suitable time and resources to work on project . </li></ul>
The title and task of a project group 1.Production Manager
How to develop power point slides <ul><li>Keep all visuals simple: major points only. </li></ul><ul><li>First slide must be of presenter’s detail personal introduction. </li></ul><ul><li>Second slide should have a brief introduction of project/content. </li></ul><ul><li>Third introductory slide .It must be relevant and attractive.try to start with relevant question or activity or quotation. </li></ul><ul><li>Use as much slide as your presentation need. </li></ul>
<ul><li>Last slide must be of references. </li></ul><ul><li>End with a relevant message. </li></ul><ul><li>For the most readable slides, use no more than seven words on a line, </li></ul><ul><li>Use the layout template for title page and for all slides. </li></ul><ul><li>If text imported by copying from another document (e.g., Word or Excel) use demanded font. </li></ul>
<ul><li>Fonts </li></ul><ul><li>Color </li></ul>Building bullets points translate the major headings in your presentation outline into titles. Then build bullet points using short phrases. Color For text, use the fonts Arial and Arial Black. Font size must be visible. Heading should be bold. Use the same font size and style for similar headings. Color:
<ul><li>Color: </li></ul><ul><li>Use a color palette of five or less colors for whole presentation. </li></ul><ul><li>Use the same color for same elements. </li></ul><ul><li>Use dark text on a light background. </li></ul><ul><li>Use dark text on a light background for transparencies. </li></ul><ul><li>Avoid light text on a light background (e.g., yellow text on a white background). </li></ul><ul><li>Avoid dark text on a dark background (e.g., red text on a black background). </li></ul>
Tips for using slides: <ul><li>Be sure that everyone in the audience can see the slides. </li></ul><ul><li>Show a slide, allow the audience to read it, then paraphrase it. Do NOT read from a slide. </li></ul><ul><li>Practice talking to the audience, not to the slides. </li></ul><ul><li>Use backup floppy disk in case of equipment failure. </li></ul>
Conclusion: <ul><li>Multimedia projects can engage students in the content of class and help them to demonstrate their learning in creative ways. </li></ul><ul><li>The process of planning and creating a multimedia project requires critical thinking and problem solving ability by the student. </li></ul><ul><li> </li></ul>
References <ul><li> </li></ul><ul><li>Green.D.T, Brown.A. Multimedia Projects in the Classroom, Crow in Press, INC.Thousand Osaks, California. </li></ul><ul><li>http://www.wpi.edu/Academics/ATC/Collaboratory/Idea/mm-why.html </li></ul><ul><li> </li></ul>
. <ul><li>The important thing is not to stop questioning. </li></ul><ul><li> ~Albert Einstein </li></ul>