Projectors have become one of the most useful devices in the field of education after the recent Covid19.
The projectors have made it possible for the educators to provide better visuals during the lectures.
It also helped in making the overall learning process more interactive and fun, which makes it easier to understand boring subjects.
Also, these days you can find projectors everywhere, from small businesses to big organizations and even in the home as a home theater experience.
Even though projectors have so many advantages, there are still some disadvantages of projector in the classroom too.
Disadvantages Of Projector In The Classrooms
There is a debate going on between teachers where some say that projectors are distracting students while others believe that projectors help them focus.
We have listed some of the disadvantages of having a projector in the classroom below which will give you a clear idea.
Projectors will occupy lots of space
Even if you have placed a small size projector inside the classroom, it will still occupy some space on the desk or table.
Also, it will require a certain position to place on the flat surface so that the image projected is visible to everyone in the class.
It will also require a screen to get projected, which will also occupy some space in the classroom.
If your classroom is not that big enough, then projectors and screens can make it look crowded.
Additional Cost For The School
If you are planning to install a projector in every classroom, then it will be an additional cost for you as decent-level projectors do carry a premium price tag.
It can also be a maintenance cost for the school as projectors need to be maintained and repaired from time to time. Also, you will need screens for each classroom too.
Increase In Electrical Charges
We all know to project the images in daylight conditions we need a higher lumens power projector. So, getting a high lumens projector means an increase in electrical charges.
So, if you are planning to install powerful projectors in every classroom then it will increase the bill if the projector runs for a few hours. Schools need to pay a higher electricity bill at the end of each month.
Increase in noise level
Noise is one of the major distractions in the classroom, and it can also affect the learning process of students.
So, if you are using a projector whose fan starts making noise due to overheating then it will surely distract the study of those students who are sitting in the front rows.
The sound of the projector’s fan can also be a distraction for those students who are sitting in the back rows as they will think that something is wrong with it.
So eventually they will start paying more attention to the noise rather than what’s being projected on the screen.
It will require more time to set it up
If you are using a projector for the first time in the classroom, then might take a few minutes or hours to properly set up.
So, the main reason for time-consuming is the projector’s proper placement in the right position and also adjusting lens focus according to the screen.
It will also take some time to focus the image on the wall because you need to make sure that from the front row to the last row, each student should see clearly.
You might need an external speaker
If you are using a projector in the classroom where there are lots of students, then you might need an external speaker too.
The internal speakers of the projector are not that loud, and they can’t be heard from the back rows if the projector has a short throw distance.
Also, if it is a long throw distance projection, the student sitting in front might not hear a sound.
So, if you want everyone in the class to hear what’s being projected on the screen, you will need an external speaker.
The Light Can Harm Student Eyes
The light which comes out of the projector is very bright, and it can be harmful to the eyes if the students are looking at the screen for a few hours.
The brightness of the projector can also cause headaches to some students, and it can also affect their concentration level.
Also, many students place the projection system in dorm rooms which also makes their eyesight weak due to regular viewing of content on a wall or screen.
Projectors can be a great addition to the classroom, but they also have some disadvantages you must consider before using them.
So, if you plan to use a projector in the classroom, then make sure that you consider all the above-mentioned points.