Tuesday, 2 May 2017

Social behavior of Ants(Jayashree Sen, roll-99, semester iv)

Ants communicate with each other through tappings with the antennae and smell. They are considered, together with the bees, as one of the most socialized animals. They have a perfect social organization, and each type of individual specializes in a specific activity within the colony. They are thought by many as having a collective intelligence, and each ant is considered then as an individual cell of a bigger organism.
The colony is made up of one or morequeens and many female workers. During two or three days a year there will also be drones, which seem to have only a reproductive function.
The queen emits an scent that makes all the workers behave in the way they do. An ant that looses its way to the nest does not live long. So, if you take ants away from their nest, or trail, they are likely to die in great need of their nest's smell (and probably quite hungry).
Some ants have 'armies' and are very organized into causing a lot of damage, and consequent fear. These species live in Africa and South America.
Some of their social behaviors vary with the species.


   Developing Listening Skill At the School Level
                                                                                                 
                                                                                                                      By
                                                                                                           Moumita Mondal
 

Abstract

As English is the global language, so to participate in the global competition the students should develop their listening skill in English. It is the vital skill providing the basis for the successful communication. Effective listening skill enhances the ability to learn and adapt new information, knowledge, and skills. There are various techniques and methods in teaching learning process in order to develop the listening skill of students. The teachers should use appropriate techniques and methods for developing the students’ listening skill, so that they can listen and interact safely and securely in classroom and also in their day to day life.
Though there are many obstacles in the way of effective listening, students can overcome those problems with the help of teachers. The students also maintain some strategies by themselves to acquire listening ability and can acquire effective listening skill and be an effective listener.




                                         I.  Introduction

English is taught as a second language in our country. The four-fold aim of teaching this subject is to enable the pupil 1) to understand English when spoken, 2) to understand English when written, 3) to speak English, and 4) to write English. This four-fold aim can be achieved by giving the pupils specific practice in the four types of language activities or skills.
Learning of any language is called language skill. “Language skill is demonstrated by the competency in the use of language.” It is more a matter of ‘doing’ than of ‘knowing’. In learning the mother tongue, the first skill that a child acquires is the ability to understand the spoken word: the skill of listening. Next, he tries to reproduce these sound sequences to express his own desires and needs and thereby acquires the skill of speaking. For an illiterate person, these two basic skills constitute his language ability. The abilities to read and write are matters of literacy. But since we want our pupils to be literate in the language, the skills of reading and writing are also included; as basic language skills in the school course. Each skill comprises various elements called ‘sub-skills’. Language is therefore called a ‘Complex Skill’ comprising the four basic language skills, namely:
1) The skill of listening
2) The skill of speaking
3) The skill of reading
4) The skill of writing






II. Interrelationship of Language Skills:

Researchers observed that listening and reading are passive, requiring less exertion on the part of the learner. These skills are called Receptive Skills or Skills of Comprehension, because when listening and reading the person is at the receiving end of the communication channel. While listening we understand the spoken language and we understand the written language while reading. But we cannot produce anything, receive only. But writing and speaking both are active skills. Here the person, being at the transmitting end of the channel, has to take the initiative. These two skills are called Productive Skills or Skills of Expression.








III. Listening Skill:

Listening is accepted as one of the most effective modes of learning. It is the ability to understand what others speak or say. In the words of Brown, “Listening ability lies at the very heart of all growth, from birth through the years of formal education.” If the students acquire listening skill properly, they can easily learn the other skills of language learning. It has been estimated that adults spend almost half their communication time listening. One study showed that college students spent about 53% of their time listening and 16% speaking, but only 14% writing and 17% reading2. It’s not just college students who spend large portions of their time listening either. Another study showed that most employees in North America spend about 60% of their day listening to each other.







IV. Importance of Listening Skill:

An old proverb says: ‘Nature gave us two ears and one mouth, so we can listen twice as much as we speak.’ So listening is an important skill for human beings because it provides us linguistic inputs besides reading. Our knowledge of the world and proficiency of language depends on the quality and quantity of listening inputs.
Developing listening skill is very crucial for developing speaking skill, which in turn helps in effective communication. Listening is essential for acquiring good pronunciation.
Listening is essential for our social life because it is through listening we appreciate other’s speech or message, feel empathy with others and communicate with others by comprehending the message given in verbal codified form, Listening helps in decoding of verbal inputs.
With the technological explosion in today’s world listening and speaking have acquired great significance. In order to survive in today’s world, one needs to be first a good listener and then a speaker. In the age of globalization listening has an important role to play.








VI. Benefits of Effective Listening Skills:

Learning the skill of effective listening benefits personal growth and development in the following ways:
Effective Communication – Clear and concise transmission of information is an important component of effective human interaction. Though the onus is often placed on presenting clear and concise written or spoken directions, the listener also bears a responsibility to hear and understand messages.
Fewer Misunderstandings – Regardless of the clarity of written or spoken messages, the effective listener can prevent misunderstandings and salvage what otherwise might be a mis-communication by practicing active listening skills.
Improved Relationships – Relationships are damaged by misunderstandings that can lead to unsatisfactory business transactions as well as hurt feelings in personal relationships. Excellent listening practices tell others that they are important, special, and what they have to say is valued. That is very attractive and contributes to strong relationships.
Personal Growth – A student learns and grows by listening and understanding other viewpoints, differing ideas, and exploring conflicting viewpoints. Learning the skill of active and effective listening not only adds a tool to the personal development portfolio, but equips one to continue growing with tools for exploring new ideas.







VII. Barriers to Listening:

Listening is not easy and there are a number of obstacles that stand in the way of effective listening, both within outside the workplace. These barriers may be categorized as follows.
1. Physiological Barriers: - some people may have genuine hearing problems or deficiencies that prevent them from listening properly. It can be treated. Some people may have problem in processing information or retaining information in the memory.
2. Cultural Barriers: - Accents can be barriers to listening, since they interfere with the ability to understand the meaning of words that are pronounced differently. The problem of different accents arises not only between cultures, but also within a culture. For example, in a country like India where there is enormous cultural diversity, accents may differ even between regions states.
3. Gender Barriers: - communication research has shown that gender can be barrier to listening. Studies have revealed that men and women listen very differently and for different purposes. Women are more likely to listen for the emotion behind a speaker’s words, when men listen more for the facts and the content.
 4. Bad Listening Habits: - Most people are very average listeners who have developed poor listening habits that are hard to say and that act as barriers to listening. For example, some people have the habits of “faking” attention, or trying to look like a listeners, in order to impress the speaker and to assure him that they are paying attention. Others may tend to listen to each and every fact and, as a result, miss out the main point.







VIII. Different Techniques of Developing the Listening Abilities:

Listening is a psychological process. It can therefore be improved by regular practice. Listening is very helpful skill. Active listening is really an extension of the Golden Rule. Here are some of the techniques to improve listening skill-
Rehearsal of the Distinguishing Capacity: For giving the students a rehearsal of training for developing the capacity of distinguishing or differentiating one word from another, the teacher may ask them to first of all group the following words into two three cases and then point out if these are similar or different,

Class One                     Class Two
    Ice     Eyes
  Week        Weak
    Sit     Seat
   Sell     Sale
Rehearsal of their Understanding Capacity: The students may be given the following two columns ‘A’ and ‘B’ of words and asking them to decide whether the word in column ‘B’ is the same (or approximately the same) in meaning as the word in column ‘A’; opposite (or approximately the opposite) in meaning; or whether the two words are only different. Circe ‘S’ for same, ‘O’ for opposite and ‘D’ for different.
     Column ‘A’ Column ‘B’
1. Sweet    Sour
2. Big   Angry
3. Danger   Peril
4. Help      Hinder
5. Love    Hate
Rehearsal of Stress on sounds: Stress on sounds can also be rehearsed in the same way. The teacher may ask students to arrange similar sounds in columns. Example- Arrange the similar sounds together in two or more columns: We, But, Pet, Me, Wet, Cut.
Column A     Column B                       Column C
    We                      Pet                                      But
     Me          Wet                         Cut            
By Asking ‘Yes’, ‘No’ Question: For judging the listening skill of pupils, the teacher may show them a picture and then ask them a few questions about the picture which they are to answer only by ‘yes’ or ‘no’.
Taking the Help of a Passage: The teacher may select a passage from the text book and reads it aloud. Thereafter, he asks them a few questions. If the reading of the teacher has been followed by pupils by listening it attentively, they would be able to answer the questions asked. Afterwards, they may be asked to read the selected passage themselves for their own comprehension.
Dictation: One of the common listening exercises which has been practiced continually in schools is dictation. One of the positive features of dictation is that it involves the learner, who becomes actively involved with the language.





IX. Conclusion:

In conclusion, it should be said that listening competence is a complex skill that needs to be developed by practice. Teachers should provide their learners with opportunities to reflect on their listening processes and practices. The role of the teacher is very important, as the teacher not only guides the students through the process of listening, but also motivates them and puts them in control of their learning. Students must maintain some tips to improve their listening skill. They must maintain eye contact with the teacher and keep their mind open. They must minimize external and internal distractions, focus solely on what the teacher is saying and must respond appropriately to the teacher. In this way students can acquire effective listening skill and be an effective listener.











MATHEMATICS IN DAILY LIFE ( By Kanchan Pal )

When you buy a car, follow a recipe, or decorate your home, you're using math principles. People have been using these same principles for thousands of years, across countries and continents. Whether you're sailing a boat off the coast of Japan or building a house in Peru, you're using math to get things done.
Try a hands-on activity whenever you see this icon.
How can math be so universal? First, human beings didn't invent math concepts; we discovered them. Also, the language of math is numbers, not English or German or Russian. If we are well versed in this language of numbers, it can help us make important decisions and perform everyday tasks. Math can help us to shop wisely, buy the right insurance, remodel a home within a budget, understand population growth, or even bet on the horse with the best chance of winning the race.

Monday, 1 May 2017

Kuntal Roy.. Topic-Time

Kuntal Roy

Topic-Stephen Hawkings' Famous Book about Time


A Brief History of Time



A Brief History of Time

Popular-science book
A Brief History of Time  
AuthorStephen Hawking
Genre(s)Cosmology
PublisherBantam Books
Release date1988
Published in
English
1988
Prequel toThe Illustrated A Brief History of Time
A Brief History of Time (1988) is a bookwritten by the scientist and mathematicianStephen Hawking. This book is about physics, or the study of laws that predict how things work in the universe. It is also aboutcosmology, or how we see the universe and how the universe exists.
In this book, Hawking talks about many theories in physics. Some of the things that he talks about are the history of physics, gravity, how light moves in the universe, space-time,elementary particles (very small objects that make up things in the universe), black holes, the Big Bang (the theory that the universe started from one point), and time travel (the idea that travel can be done to the past and to the future.)

The Use of Mathematics in Everyday Life

The Use of Mathematics in Everyday Life
(Abhishek Mondal) roll-6 practicum for ICT


Even those suffering from math-related anxieties or phobias cannot escape its everyday presence in their lives. From home to school to work and places in between, math is everywhere. Whether using measurements in a recipe or deciding if half a tank of gas will make the destination, we all use math. It is a good idea, therefore, for teachers and parents of reluctant math learners to use real-world examples to ignite a spark of practical interest.

At Home



Some people aren't even out of bed before encountering math. When setting an alarm or hitting snooze, they may quickly need to calculate the new time they will rise. Or they might step on a bathroom scale and decide that they’ll skip those extra calories at lunch. People on medication need to understand different dosages, whether in grams or milliliters. Recipes call for ounces and cups and teaspoons — all measurements, all math. And decorators need to know that the dimensions of their furnishings and rugs will match the area of their rooms.

In Travel

Travelers often consider their miles per gallon when fueling up for daily trips, but they might need to calculate anew when faced with obstructionist detours and consider the additional cost in miles, time and money. Air travelers need to know departure times and arrival schedules. They also need to know the weight of their luggage, unless they want to risk some hefty baggage surcharges. Once on board, they might enjoy some common aviation-related math such as speed, altitude and flying time.

At School and Work

Students can’t avoid math. Most take it every day. However, even in history and English classes they may need to know a little math. Whether looking at time expanses of decades, centuries or eras or calculating how they’ll bring that B in English to an A, they’ll need some basic math skills. Jobs in business and finance may require sophisticated knowledge of how to read profit and earning statements or how to decipher graph analyses. However, even hourly earners will need to know if their working hours multiplied by their rate of pay accurately reflects their paychecks.

At the Store

Whether buying coffee or a car, basic principles of math are in play. Purchasing decisions require some understanding of budgets and the cost and affordability of items from groceries to houses. Short-term decisions may mean only needing to know cash on hand, but bigger purchases may require knowledge of interest rates and amortization charts. Finding a mortgage may be much different from choosing a place to have lunch, but they both cost money and require math.

Abhishek Mondal 

Use of science in everyday life ( SUMAN MANDAL ROLL 10)

How do we use science in everyday life?
Pretty much everything we do in our daily lives consists of science underlying it. From using a simple calculator, to closing of the door as well as using bigger washing machines, the entire world is made of science and its numerous innovations have only made it easier for us to spend our lives more comfortably than ever. Without science and its inventions, the society will surely reach the stone ages and we will no longer be able to live a sophisticated life. Imagine your life without electricity, fuel, vehicles and plastic, pretty incomplete right? So here are a few uses of science in our everyday life.

Usage of science in everyday life

Science made communication possible

Have you ever wondered how different our life will be without the mobile phones, landlines and internet services that we use today? GPS systems, telephone, telefax, laptops, etc. everything is a gift of science and there is no way we can imagine our life without these. All these inventions of science has brought the world close to us and has made the sharing and transfer of information possible from one corner of the world to another.
 In the field of medicine
We know that the advancement in science is the reason why today we have found the cure for millions of diseases and ailments. Heart transplants and various such critical medical procedures are only possible due to science and its innovations. Doctors can see the inside of our body with the help of X- ray which is yet another notable discovery of science.
Source of energy
The discovery of atomic energy has made it possible for us to invent all the advanced forms of energy that we use in our everyday life. Electricity is also a result of this innovation which has given man the power to turn his nights into days and hence work for longer hours. The television and radio that provide us with entertainment and relaxation are also gifts of science.
Each and every machine that we use
Starting from a simple calculator to using high end home appliances, science is a part of our existence. Starting from the time when we wake up using an alarm clock to the time when we hit the bed at night, each and everything we do in office and at home involved the use of science.
 Kids playing in the playground
The flying of a simple kite involves science in the fact that it involves the angle of elevation, speed as well as distance.
Cooking also involves science
An ice cube that we make at our homes is a perfect example of melting as well as freezing. The processes of evaporation and condensation involved in cooking are also a proof that science is all around us.
Wastage of food is also science
So, you have left a piece of bread and mould formation takes place on it. Or let us talk about tinned peas, pineapples, peaches, etc. This decomposition and preservation phenomenon is also science.
Whether you believe it or not, even the blowing of wind involves an essence of science in it.


Newton's Law of Gravitation Roll-18 Md Abdul Hamid