Maharashtra Board Class 5 EVS Part I Chapter 15 Communication and Mass Media PDF Download

Communication And Mass Media

What Is Communication?

Artificial satellites are launched into space by means of rockets. They are useful for communication.

In India, we use artificial satellites for communication. These satellites are called the Indian National Satellites (INSAT).

We watch TV programmes on many different channels. Where do they come from?

In the first chapter, we learnt about launching of spacecraft and artificial satellites. Artificial satellites are used in modern methods of communication. The signals are delivered very quickly from one point to another.

For example, we can watch the live telecast of any event going on in any part of the world, for example, football or cricket matches. With the help of mobile phones, we can directly talk to people in other countries. The President or Prime Minister can address the entire nation at the same time over the radio or TV.

We talk to others on our mobile phones. What makes communication on a mobile phone possible?

Teacher's Note

When you watch a cricket match on TV, the satellite sends the signal from the stadium to your home. This is how you see live cricket on your television at home.

Exam Trick

Remember: INSAT = Indian satellites. Just like how WhatsApp messages reach your friend, satellite signals reach your TV very fast.

Points To Remember

Artificial satellites are launched into space by rockets.

Satellites help us watch TV channels and use mobile phones.

India uses satellites called INSAT for communication.

Understanding Feelings And Communication

We can understand a person's feelings by looking at the expression on their face. The expression on a person's face and other gestures communicate a message to us.

We receive messages or information through communication. The exchange of information is called communication. Information broadcast is also a part of communication. Information is useful for constructing knowledge.

Teacher's Note

When your mother is angry, you can see it on her face. When your friend is happy, you can see the smile. This is how faces tell us feelings without speaking.

Exam Trick

Remember: Communication = sharing information. A smile is communication. A sad face is communication. Words are also communication.

Points To Remember

Facial expressions show our feelings.

Gestures also communicate messages.

Communication means sharing information with others.

Information helps us learn new things.

Good Things About Communication And Mass Media

We can easily contact people far away from us.

The time and effort spent in exchanging information can be saved.

They help to raise awareness about issues such the environmental balance, gender equality and cleanliness.

People can be forewarned about natural disasters like storms, tsunamis, floods, etc.

They build awareness about health, educational facilities, good things happening in society, etc.

They help in successful implementation of government schemes launched for the benefit of people.

Awareness can be raised about matters related to food, clothes, shelter, education and health. This improves people's way of life.

Mass media help in the expansion of trade and industry.

Teacher's Note

When a storm is coming, TV tells people to stay safe. When the government starts a new school, TV tells everyone about it. This helps the country grow.

Exam Trick

Remember: Mass media = helps many people. Like when your teacher uses a loudspeaker in school, one loudspeaker tells all students. One TV channel tells millions of people.

Points To Remember

We can talk to people far away.

We get news about natural disasters.

We learn about health and education.

Mass media helps government share important information.

Bad Things About Communication Devices

Excessive use of the television, computer or mobile phones causes disorders of the eyes, ears and back. Psychological disorders and isolation, etc. are also possible.

We get all sorts of information through television channels and the internet. There are instances of this information being misused to disturb the peace and order in society.

Time spent on watching television leads to the neglect of outdoor sports and physical fitness. This has an adverse effect on physical health.

A Real Example: Amod's Problem

When Amod, who is in the fifth standard, comes home after school, he visits several websites on his computer. He never misses his favourite TV shows. He plays games on his mother's mobile phone all the time. He is always sitting at home. Lately, his appetite has decreased. He is drowsy and has put on weight.

Amod's mother is worried about him. When will she feel better?

What's The Solution?

Telecommunication devices should be used properly and sensibly. We must be careful not to use them excessively.

Teacher's Note

Amod uses mobile phone, TV and computer all the time. This made him sick. He needs to play outside and run around. Balance is important between using devices and playing.

Exam Trick

Remember: Too much TV is bad. Just like eating too much candy makes you sick, using TV and mobile phone too much makes your eyes hurt and your body weak. Balance is key.

Points To Remember

Using mobile phone too much hurts your eyes.

Sitting all day makes you sick and weak.

You must play outdoor sports every day.

Use devices sensibly and carefully.

Balance is important between screen time and outdoor play.

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