The projectors are commonly and most effectively used audio-visual aids in the classroom. A projector not only gives convenience to the teachers in polishing their teaching skills and making their teaching style more productive but also a fun way to learn new things.
And besides the amazing features that they offer to users when a projector is set in the classroom for educational purposes, it has some downsides called the limitations or disadvantages of a projector that are the strong reasons why school authorities do not allow the teachers to mount a projector in the classroom. In this article, I will explain the disadvantages of projectors in a classroom.
Let’s scroll your screens down to explore them in detail one by one!
- 1 Disadvantages of Using Projectors in a Classroom
- 1.1 #1. Projectors Consume More Energy and Money
- 1.2 #2. Projectors Become Annoyingly Noisy
- 1.3 #3. Protectors Create Unfavorable Environment for Learning
- 1.4 #4. Students Start Malicious Activities
- 1.5 #5. Projectors Take Huge Space in the Classroom
- 1.6 #6. Projectors Have Many Consumables
- 1.7 #7. Projectors are Hard to Transport
- 1.8 #8. Projectors Need Maintenance
- 1.9 #9. Projectors Need Separate Audio System
- 2 Final Words
Disadvantages of Using Projectors in a Classroom
Projectors provide a high-resolution picture and offer a more explanatory way to present things in a better way, as it is well said that people learn more when they hear and see at the same time. But still, the school authorities prohibited the use of projectors in the classroom because of certain associated disadvantages that should never be ignored.
Move ahead to know them without further ado!
#1. Projectors Consume More Energy and Money
A school has to manage a lot of expenses that are mandatory for student learning and their staff as well. And when they mount a projector in every classroom, then it would be difficult to manage the whole requirements of the school because a projector consumes more electricity than an HDTV, so it is better not to use a projector in the classroom. Furthermore, not only do the bills go higher, but the projectors are a heavy burden on the budget of the school as they are quite much expensive to afford.
#2. Projectors Become Annoyingly Noisy
Projectors are sometimes a headache for both students and teachers in a classroom because projectors are actually noisy, and even precautionary steps can not keep a projector quiet. A learning environment must be calm and peaceful so that the students can easily grab the concepts, which is why it is better not to place a projector in a classroom.
#3. Protectors Create Unfavorable Environment for Learning
To make every slide visible on the projector, it is necessary to place a projector in a dark room, and when a projector is particularly placed in a classroom, then the room must have curtains down when the projector is ON. Moreover, the lights should be OFF in the room. Unfortunately, this is one of the strongest disadvantages of projectors in a classroom because a dark environment is unfavorable for the classrooms. After all, students can not easily note down their lectures on their registers, and hence they miss the important points of the lecture.
#4. Students Start Malicious Activities
In the dark, the teacher can not take notice of the student’s activities, and in a dark room, a professor can not conduct his lecture properly. So the naughty students start malicious activities in the classroom by disturbing other students who are trying to focus on the lecture.
#5. Projectors Take Huge Space in the Classroom
Projectors are not like an HDTV which can be installed anywhere. There must be a proper space for a projector in the classroom. The most important fact is that classroom projectors are usually overhead projectors that are bulkier in size, and they require ample space to place in the classroom to get the optimum clarity. Moreover, during the lecture, no one is allowed to cross the projector screen as it disturbs the other students in the class, and this would bother the lecturer too.
#6. Projectors Have Many Consumables
The projectors are very consuming because the transparencies of the projectors get filthy with time if not clean properly. The stains also become permanent with the markers, and then the screen must be replaced. In addition to this, the bulb of the projector, which is the basic functional unit of the projector, wore out when its lamp life ended. The bulb of the projector is much more expensive than you think!
#7. Projectors are Hard to Transport
One of the most perplexing disadvantages of a projector is the difficult transportation. Projectors are bulky in size, and they are quite much heavier to handle. That is why for the safe transfer from one place to another, they need proper service so that the unit may not be damaged.
#8. Projectors Need Maintenance
The most significant feature of a projector is the bulb of the projector. The lamp must be replaced after some time when the lamp life is completed. Besides changing the lamp of the projector, it contains air filters that must be cleaned or replaced. If it is not cleaned on time, the screen will start displaying dust spots on the screen, and it also reduces the average lamp life of the projector. If the projector has sealed optics, then maintenance will not be required but remember, this type of projector costs more.
#9. Projectors Need Separate Audio System
In a classroom, when a projector is placed for the lectures, then it must have an appropriate sound level which is unfortunately not available in most projectors. That is why the schools have to arrange a separate audio system to attach to the projector screen so that students can easily listen to what they are watching. But a good audio solution is a serious problem for the budget of the schools, so they avoid using projectors in the classrooms.
Projectors are one of the most rewarding inventions of technology because it has opened up new ways of exploring things through clearer, sharper, and brighter images. They are an incredible and the most useful aid for presenting visual information in a more conducive manner. But the pity is that projectors have some unbearable disadvantages besides all the advantages in a classroom. All the possible downsides are elaborated above, so projectors are not necessarily used all the time.