1. The projector, if operated from the front of the room, allows the presenter to have direct eye contact with the audience or students. What are the advantages of having direct eye contact with the students?

2. Keep transparency presentations short, with a maximum of six words per line and six or fewer lines per transparency. What are the importance of this phrase or line?

3. Do not photo copy a page of a book or report in a transparency. Make your own lay out with their appropriate size of font to ensure visibility. Why we need to create our own transparency.

4. Differentiate Liquid Crystal Display (LCD) from Digital Light Processing. Give their advantages and disadvantages.

LCD projectors project light onto mirrors which split it up into its 3 primary colours: red, green and blue. The colours then pass through three separate glass panels (actually prisms), which is why this technology is referred to as 3LCD. When light is projected through the LCD panels, individual pixels are opened or closed to allow light through or block it. The separate colours are then converged using another prism and projected on to the screen.

What are the advantages of LCD Projectors?LCD projectors have historically had three main advantages over DLP projectors.More accurate colours

DLP projectors often have a clear section in their colour wheel which boosts brightness but reduces colour saturation. LCD projectors do not have a colour wheel.

Sharper image LCD projectors have a slightly sharper image than DLP projectors at equal resolutions. This can

actually be a drawback which we will come to below.More light-efficient

This means that the same wattage lamp in an LCD and DLP would produce a brighter image in the LCD.

The disadvantages of LCD ProjectorsThe historical disadvantages of LCD are more relevant to video than data applications.Screen door effect

The sharper image produced by LCD projectors can actually be a disadvantage, since the more precise focusing makes the pixilation (“chicken wiring” or “screen door effect”) of an image more obvious.

Contrast LCD contrast may not be as good compared to DLP, meaning that LCDs cannot produce

completely black images. Both of the above are less of a problem with newer, higher resolution 3LCD models.

Portability LCD projectors have more parts and so are bulkier and less portable than DLPs.

Image degradation

More parts means more parts which can go wrong. LCD panels can experience long term image degradation where colour balance shifts and overall contrast is reduced. LCD panels can be expensive to replace.

Dead pixels Dead pixles can become a problem in LCD projectors, where one or more pixels turn

permanently on or off. With one pixel, the effect is hardly noticeable, but it can become an annoyance if this happens in clusters of pixels.

Digital Light Processing is a proprietary system developed by Texas Instruments, and works differently to LCD projection. Most DLP projectors have a single chip instead of glass panels through which light is passed, and this chip has a reflective surface composed of thousands of tiny mirrors which correspond to individual pixels. These mirrors can move back and forth when light is beamed onto the chip to direct the light from individual pixels either towards the projector lens or away from it. In order to define colours, DLP projectors have a colour wheel that consists of red, green and blue filters. This wheel spins between the light source and the DLP chip and alternates the colour of the light hitting the chip between red, green and blue. The mirrors tilt away from or into the lens path depending on how much of each colour is required for each pixel at any given moment.

What are the advantages of DLP?DLP projectors are a favourite amongst road warriors and home theatre enthusiasts for several reasons:Portability

DLP projectors tend to be smaller and easier to transport since they have one chip compared to the LCD’s 3 panels.

Higher Contrast The deep blacks achievable with DLP projectors make them very popular for home cinema

applications.Reduced Pixilation

This is especially noticeable in comparisons of lower-end LCD and DLPs, and makes DLP a popular choice for smooth video applications.

Reliability DLPs tend to fail less often due to fewer parts and are less expensive to repair. DLP projectors

have sealed optics, making them ideal for use in dusty environments.

The disadvantages of DLP TechnologyThe Rainbow effect

When looking away from the projected image of a DLP projector to an off-screen object, or when looking quickly from one side of the screen to the other, you may experience a “rainbow” effect – a momentary flash of rainbow-coloured stripes around brighter objects. This is typically only a problem in older DLP projectors without modern, faster 6-colour wheels.

Light leakage Some people may also experience “light leakage” from their DLP projector in the form of a grey

band around the outside of the image. This is caused by stray light reflecting off the edges of the mirrors on the DLP chip. This can be avoided by installing black borders around the screen. Again, light leakage is generally only a problem in older DLP projectors.

5. What are the three methods of distributing ETV program? Differentiate the three methods.Three methods of distributing ETV programs:

• Open broadcast television. a system which transmits messages through very high frequency (VHF) OR Ultra high frequency (UHF) television channels programs are telecast over the air and can be seen by anyone who is tuned to a particular channel.

• Closed circuit Television (CCTV). The system which limits the distribution of an image to those receivers which are directly connected to an origination point.

• Video recordings – An electronic recording of ETV programs through videotapes or videodisc. The recorder materials can be played back using VHS, VCD, and DVD players.

6. To be effective in classroom instructions, we need to consider motion pictures. Enumerate and briefly discuss the elements of motion pictures.

7. During the film viewing, the room can be darkened to reinforce maximum attention on the film. Why should be the teacher watch the movie with the students?

8. What are the 4 types of Display Media we can use in our class? Differentiate the types by giving simple descriptions.

9. It is said that your bulletin board inside your room or at the corridor area of your building is a reflection of who you are as a teacher. What are the characteristics that a bulletin board should have to be effective?

10. There are community resources that we can utilized. How do we utilized community resources effectively?

11. How do you measure the output/learning of students taken from field trips/educational tour of from a resource person? What are the device or technique that you can use to measure it?

12. Differentiate Demonstrations from having a resource person? Explain its advantages and disadvantages.

13. Dramatization in class is very effective now a days. Lists all the forms of drama and describe each.COMEDY - A comedy makes us laugh when the play is well-composed with the humorous elements. The story is usually based on real-life characters, funny experiences in life, or any type of fun-provoking situation.FARCE - it is a comic dramatic piece that uses highly improbable situations, stereotyped characters, extravagant exaggeration, and violent horseplay. Farce, although a sub-category of comedy, is intellectually inferior to comedy because the plots and the characters are substantially crude, ambiguous, and unimaginative.TRAGEDY - It is one of the oldest forms of drama. It exposes the plight and suffering of humans to the audience.

MELODRAMA - Melodrama is exaggeration of emotions. It's marked by a surge of emotions, which is a technique to make the character and the plot more appealing to the audience. A melodrama can sometimes fail to derive applause, because excessive display of emotions can become sheer monotonous. On the contrary, a superbly executed melodramatic plot can absorb you completely. FANTASY - It is a complete fictional work where characters virtually display supernatural skills. It is more appealing to children as fairies, angels, superheroes, etc., are embedded in the plot. Use of magic, pseudo-science, horror, and spooky themes through various kinds of technical devices create a perfect world of fantasy. The modern version of drama incorporates a great deal of special effects.MUSICAL - Music, melody, and dance play a significant role in a musical drama. Here, the story is conveyed through music and dance along with dialogues and acting. The music should be in sync with the actions, and the performer often uses dance as a means of self-expression. The stage may be equipped with an orchestra, well-rehearsed with the plot and the use of music. Musical drama became popular as opera, which is still considered to be intensely sensuous.

14. Distinguish realias from models. Give its advantages and disadvantages.

15. What is simulation? How it is different from dramatized experiences?Simulation is an acting out or mimicking an actual or probable real life condition, event, or

situation to find a cause of a past occurrence (such as an accident), or to forecast future effects (outcomes) of assumed circumstances or factors. It is different from Dramatized Experiences because dramatized experiences can be very useful and can be applied by any one especially Plays which depicts life, character or culture or a combination of all three and a very good opportunities to portray one's life. The other dramatized experiences are Pageant which are dramas usually based on history, Tableau- is a picture-like scene composed of people against a background, Puppets - are usually figures that are used to make up a story telling activities and Role Playing is a spontaneous dramatization of a situation.