Monday 31 March 2014

How to concentrate while studying


Few important tips for How to concentrate while studying

Concentration is not a self adjusting habit but a subconscious thing which can be improved through hard work and focus. For a student studying regularly can be a repellent activity especially if they have something more interesting like videogames, mobile phones, friends and television attracting them. However realizing the consequences of such attractions during exams can be tough to swallow. Thus many mediocre students ask a common question to their mentors or teachers which is “how to concentrate while studying?”
·                  For building concentration your first step should be choosing subjects for which you truly have liking. One cannot force the brain to concentrate on something for which it has completely no interest.
·                  There should be an uninterrupted spot for studying because a quiet place can help you concentrate far better than your drawing room flooded with friends and family. A well ventilated and lighted room with proper space for your studying stuff can help you in building the environment of concentration.
·                  Having right type of food and right amount of sleep can help the brain to remain attentive and sharp. This attentiveness can thus be seen in your concentration power to grasp.
·                  If you are making a regular schedule of studying choose hours of morning as such hours are not only calm and full of peace but research also proves that brain shows sharp results of concentration in morning.
·                  Continuous studying is not a recommended habit as brain needs rest in every 40-45 minutes thus make sure you give yourself breaks while studying. A 15 min break for a 45 minute continuous learning is enough.
·                  Concentration can also get down with boredom thus mix your subjects while studying. Study one subject for an hour and for the next hour choose another subject with is different that the previous. You can go for one practical and one theoretical studying sessions. Varieties for the brain while studying can not only prevent distractions but will also create interest. You should select proper subjects in your study timetable.
·                  Schools and colleges should promote yoga sessions and classes especially for students near exams because, being related to mental and physical peace there are many brain exercises in yoga which can help students to gain mental peace and thus can help to clear distractions that hinder their concentration power.
·                  Having a proper technique to learn and read can prevent the wandering nature of less concentrated brain. Making short notes and asking questions is a good habit to grasp. Reading loud and summarizing chapters twice a day can also help in growing the concentration.
·                  There are many natural tonic and medicines available in market that can help to raise the concentration power without giving any side effects. Aayurvedic and homeopathic fields can show positive long term results.
·                  Proper time management is also one of the most important aspect for concentration. Because if you have fixed routine for every task than you do not have to worry about any other task while study.
·                  If you are still not cleared about building concentration you can take a personal check by asking yourself “how to concentrate while studying” as one knows the personal pros and cons better than anybody else.


Saturday 29 March 2014

Tips For Exams and Tests of english


Practical Exam Tips
1) Pens and Pencils
Some exams require the use of PENS, while others have to be completed in PENCIL. Make sure you know what you should be using in every paper before you go in.
2) Websites
All the major examination boards have websites these days, usually with sample papers and examiners' reports that you can download. These sites are well worth a visit as they may offer a lot of sound advice. The examiners' report, for instance, can give you an idea of exactly what it is that they are looking for.
3) Take Spares
Take spare pens and pencils just in case the one you are using stops working.
4) On time not In time
Allow for problems, hold-ups and traffic jams on the way and make sure you arrive with time to spare so that you can go in calmy rather than in a frantic rush.
5) It may sound stupid, but ...
Don't forget to read the instructions and make sure you know what you are being asked to do. You should go into the exam well aware of what is expected of you, but you should always check. Don't, however, waste a lot of time on this.
6) Honesty- 1
A language exam is not a test of honesty and you will not be penalised if you tell the examiners that you are CANCER rather than SAGITTARIUS in a written question simply because you are sure of how to spell it. Language Tests are quite simply that; they are designed to test your language and not your honesty- don't worry about lying or being economical with the truth in order to show off your accurate language use.
7) Zzzzz
Try to get a good night's sleep the night before any exam.
8) Hangovers

Try to avoid alcohol the night before an exam, especially in quantity, as a bad hangover is among the very worst things to be suffering from in an exam room.


Multiple Choice Tips

12) Psychological Warfare
Examiners can choose the same letter successively for the correct answer. After three consecutive answers with the same letter, many students may well start to feel confused and worried. Eventually, many candidates will start changing their answers simple because they don't believe that examiners would have half a dozen of more questions with the same letter one after the other. They can and sometimes do; this is a real test of your comprehension and reduces the possibility of scoring by guessing.
13) Right word, wrong answer
With multiple choice comprehension questions based on a text, a simple trick is to take obvious and prominent words from the text and put them in an incorrect option. Seeing a word or phrase from the text is not enough; these questions are designed to test comprehension not recognition of a word from the passage.


Writing Tips

9) Writing- 1
Don't carried away and overload your writing with too many obvious connectives and contrastives; if every sentence has two or three such words or expressions, then the writing can seem strained and artificial. Remember- you can try too hard as well as not hard enough.
10) Writing- 2
Write on alternate lines (leaving every second line blank) so that you have space to make changes when checking through your work.
11) Writing- 3
Always credit your sources in academic writing, even when you are referring to ideas rather than actually quoting.


Listening Tips

17) Listening- 1
You are often given false information first that sounds as if it could be the answer to the question. An instance of this is where the information given matches one of the answers, but does not fit the criterion given in the question- the person could be talking about last week, say, when the question asks about next week. The correct information usually, but not always, comes afterwards.
18) Listening- 2
Nearly right is not the same thing as right; examiners often give information that sounds more or less correct, but is in some way unsatifactory. Adverbs and modals are often used to send you the wrong way; the listening text might use 'She may well be late' and the question 'She will be late'- this is not an exact match and consequently could easily be the wrong answer. It has to be 100% accurate to be right.
19) Listening- 3
In longer listening passages, they often try to lull you into losing concentration by having quite long sections where no information relevant to the exercise is given, then out of the blue they hit you with a couple of answers in quick succession.
20) Listening- 4
Although most longer listening passages begin with an introduction that lets you get into the flow before they start testing you, you cannot depend on this; the first word could in theory be the answer to the first question.
21) Listening- 5
Examiners will often place a word directly from the passage in a wrong answer and use a synonym *[syn.] in the correct answer; check the meaning and do not rely on word recognition to get the right answer.


Speaking Tips

14) Speaking- 1
Don't bother learning speeches and trying to say them verbatim (word-for-word) in interviews; examiners will usually spot this without too much difficulty and mark you down for it. It is very hard to do this and sound natural.
15) Speaking- 2
Do think over your answers to common questions about yourself. This an opportunity for examiners to get a general picture of your language level, especially your ability to talk about past, present and future experiences, so run these thing over in your mind and try to include corresponding verb forms accordingly.
16) Speaking- 3
If you are asked to talk about or describe a photograph, don't get too hung up on describing every visible detail. Instead, be prepared to speak in general terms about it and how the theme it illustrates affects you.


Examiners & Exam Myths

22) Examiners- 1
Examiners are, by and large, sadistic so-and-sos. Their sole aim in life is to trap you and catch you out.
23) Examiners- 2
In multiple choice exercises, examiners have been known to use the same letter for the correct answer several times in succession (a, a, a, a, a, etc). This is unsettling and can make students worry that their answers must be wrong; it does not. I once gave a Cambridge Proficiency group an entire Reading Comprehension exercise (25 questions) with the same answer for all. The students started changing their answers and choosing wrong ones because they couldn't believe that this was possible. While I have never seen it, there is nothing to stop them doing it. They are there to test your understanding and will play psychological games to make you doubt yourself, and this is one little trick they use. It also has the advantage of reducing the possibly of inaccurate scores achieved by guessing, as few would guess in a regular pattern, but would try to vary their answers across the range of possibilities. From their perspective, grouping a few consecutive answers with the same letter makes sense.
24) Examiners- 3
Many students and teachers try to analyse exams and work out patterns. In one Cambridge First Certificate exercise, there were usually between four and six correct sentences. Then one year there were only two. Patterns may help, but beware of relying on them; examiners will change them without warning.
25) Exam Myth 1
Apparently, a philosophy student got a first class grade for a paper which had "Is this a question?" as an essay title. Instead of going into the nature of questions, etc, he or she simply wrote "Yes, if this is an answer." Perhaps you should read Exam Myth 2 before feeling encouraged to do likewise.
26) Exam Myth 2
When asked "What is courage?", another philosphy student wrote "This." He or she failed; even though it was, indeed, courageous to stake their degree on such an answer, it was not held to have answered the question. The answer was an example and not an explanation.
27) Exam Myth 3
An Oxford undergraduate, or so the story goes, discovered an ancient regulation that allowed a gentleman to send the invigilator to buy a quart (Two pints or 1.14 litres) of ale (beer) during the exam for the student's refreshment. He duly ordered it and produced his evidence and was bought the beer. The following day, the invigilator approached him with a hat, gown and sword, which another old regulation stipulated had to be worn at all times. So, the student had to to sit through the exam in a stuffy hall on a hot day in a heavy hat, etc.
28) Exam Myth 4
A student used amphetamines (a chemical stimulant) to stay awake to study all night in the days leading up to an exam, hoping to make up for lost time. Feeling shattered on the morning of the exam, they took a huge dose to make sure they were bright and alert and didn't fall asleep halfway through. Throughout the exam, they scribbled away frantically; writing page after page. Unfortunately, they'd taken so much of the stimulant that they failed to notice that they had written everything on the same side of paper, which meant that instead of handing in a dozen sheets of paper, they had one so covered in writing that it had turned black.


Friday 28 March 2014

How to prepare for the oral exam

The oral exam has two parts: a monologue and a dialogue. You will be able to prepare your parts for about 10 minutes in a preparation room. You can jot down some thoughts as well but remember you won’t be able to read your notes during the exam.We have done some samples during the year and I have already given you advice in this post but as it easy to panic about speaking another language I will give you a few more hints. You are not the only ones who have self doubts




You see, you speak English  as well as those guys, just be confident and well prepared.
For the monologue, plan some good lines of introduction to impress the examiners and set a relaxed atmosphere, humour is always a good ice breaker but don’ overdo it,  ie:
My job is to talk to you, and your job is to listen. If you finish first, please let me know. Harry Hershfield
You have by now been exposed to a lot of excellent structures to negotiate your way in an oral exam, tidy up your notes and come up with a list of good sentences to use:
I would like to point out …Let me start by stating the current state of affairs/status quo….If you don´t mind me saying so,……If I may interrupt …If I may change  the subject…If you can keep a secret…If you see what I mean…If I understand you correctly…Having said that, let’s move on to another side of the argument …
Do you remember these ones from last year`s blog?
The BBC has a great series called How to…? where they go through the language needed in different communicative situations:
How to …. discuss: making suggestions, making a point, disagreeing, expressinguncertainty, ….
How to … instructions, explanations & advice: asking for and giving directions, showing understanding when you are listening to explanations, ….
How to …. good news, bad news: congratulating someone on good news, responding to someone’s bad news, …
How to … conversation: extending a conversation, closing topics, talking about things you like, …
How to … requests, offers & invitations: asking for permission to do something, inviting someone in an informal context, making polite invitations, …
How to … complaints, apologies & excuses: making a complaint, saying sorry, accepting an apology, pointing out the positive …
How to … hello & goodbye : greeting friends, greeting people in more formal situations, introducing people, small talk and follow-up conversations, saying goodbye,…
And if you want to improve your pronunciation follow this adviceand check out this good blog from a nice Spanish woman, Iciar, living in London who gives tips on how to get rid of the Spanish accent.
Let’s get talking!

Thursday 6 March 2014

common math mistake

This section lists common mistakes that students can sometimes make. For ease of reference the errors are divided into four main categories. The Calculus Errorssection deals with errors associated with derivatives and integrals. The Root and Exponent Errors section deals with errors involving exponents and roots. TheAlgebraic Manipulation Errors section includes errors which may occur when dealing with manipulating expressions. Finally, the Trigonometric Errors section deals with common errors involving trigonometry.

Note that these are listed by ERROR so the formula that appears above the explanation is INCORRECT. The correct formula (if one exists) appears at the end of the explanation.


Calculus Errors


[f(x)g(x)]' = [f '(x)][g '(x)]

Let us assume that this is true. Let f(x)=x and g(x)=2x. Then we have:

[f(x)g(x)]' = [f '(x)][g '(x)]
[x(2x)]' = [(x)'][(2x)']
[2x2]' = 1(2)
4x = 2

This example clearly shows the error in assuming that [f(x)g(x)]' = [f '(x)][g '(x)] since the incorrect answer (the right side) is not equal to the correct answer (the left side). The correct method to be used is the Product Rule where [f(x)g(x)]' = [f '(x)][g(x)] + [f(x)][g '(x)].


[f(x) / g(x)]' = [f '(x)] / [g '(x)]

Let us assume that this is true. Let f(x)=x and g(x)=2x. Then we have:

[f(x) / g(x)]' = [f '(x)] / [g '(x)]
[x / 2x]' = (x)' / (2x)'
[1 / 2]' = 1 / 2
0 = 1 / 2

From this example it can be seen that [f(x)g(x)]' = [f '(x)][g '(x)] is the incorrect. The correct method to be used is the Quotient Rule where [f(x) / g(x)]' = ( [f '(x)][g(x)] - [f(x)][g '(x)] ) / [g(x)]2.



Let us assume that this is true. Let f(x)=x and g(x)=2x. Then we have:



From this it is easy to see that evaluating the integral of a product as the product of two integrals gives the wrong answer. The correct method to use here is the Substitution Rule (unless the integral can be simplified and directly evaluated as with the above example).
Note: The arbitrary constant C is the same on both sides since the assumption was that both sides of the equation were equal, hence the constant is assumed to be the same on both sides.



Let us assume that this is true. Let f(x)=x and g(x)=2x. Then we have:



As can be seen the answer on the right is not equal to the answer on the left (which is the correct answer) so this way of evaluating the integral of a quotient is incorrect. The correct method to be used is the Substitution Rule (unless the integral can be simplified and directly evaluated as with the above example).
Note: The arbitrary constant C is the same on both sides since the assumption was that both sides of the equation were equal, hence the constant is assumed to be the same on both sides.



If we were to use the Power Rule as this mistake seems to suggest, we would actually have:


Since division by 0 is undefined this method is obviously incorrect. The correct answer to the integral is ln|x|+C.


Root and Exponent Errors



Let us assume that this is true. Let a=1 and b=4. Then we have:



Since the square root of 5 is not equal to three we can see that you cannot split the root in such a way.



Let us assume that the equation is true. Let a=-1 and b=-4. Then we have:



This example made use of complex numbers. It can be shown that with the use of complex numbers either a or b can be negative but not both. However in MATH 1036/1037 we are only looking for real valued answers so for this course, both a and b must be positive.



Let us assume that the equation is true. Let a=-4. Then we have:



This example made use of complex numbers. Since in MATH 1036/1037 only real valued answers are desired and (as shown in the example) the negative sign cannot be removed from the square root, the correct response in this course would be "no real valued answers exist".


(cx)n = cxn where c is constant.

Let us assume that the equation is true. Let c=2, x=3, and n=2. Then we have:

(cx)n = cxn
((2)(3))2 = 2(32)
62 = 2(9)
36=18

It is quite clear that 36 is not equal to 18 so the assumption that this is true is wrong. The correct formula for removing brackets in this case is (cx)n = cnxn.



Let us assume that the equation is true. Let c=8, x=8, and n=3. Then we have:



As 4 is not equal to 16 this formula is flawed.  The correct formula is .


(x+y)2 = x2+y2

Let us assume that the equation is true. Let x=2 and y=4. Then we have:

(x+y)2 = x2+y2
(2+4)2 = 22+42
62 = 4+16
36 = 20

Since 20 is not equal to 36 (36 being the correct answer) this formula is wrong. The correct formula is (x+y)2 = x2+2xy+y2 because (x+y)2 means (x+y)(x+y).


(-x)2 = -x2

Let us assume that the equation is true. Let x=2. Then we have:

(-x)2 = -x2
(-2)2 = -22
4 = -(22)
4 = -4

This example shows that the negative sign cannot be factored from the brackets when raised to the power 2. The correct way to solve this is (-x)2 = x2.  Note that this property holds for any even power but if the exponent is odd the negative sign can be factored as in the example.


Let us assume that the equation is true. Let x = -1. Then we have:



The correct way to simplify this is: 


Algebraic Manipulation Errors


x-(a-b) = x-a-b

Let us assume that this is true. Let x=2, a=3, and b=4. Then we have:

x-(a-b) = x-a-b
2-(3-4) = 2-3-4
2-(-1)= -5
2+1 = -5
3 = -5

As can be seen -5 is not equal to 3 so the formula is incorrect.  The error was that the negative sign must be multiplied into both terms in the bracket leaving x-(a-b) = x-a+b.


(ax2+b) / x = ax+b

Let us assume that this is true. Let x=2, a=3, and b=4. Then we have:

(ax2+b) / x = ax+b
(3(22)+4) / 2 = 3(2)+4
(3(4)+4) / 2 = 6+4
16 / 2 = 10
8 = 10

Since 10 does not equal 8 this formula is incorrect.  The error was believing that in dividing by x you only needed to remove x from one term in the numerator. In order to do this EVERY term in the numerator must have an x in it.


ax2 = x solved by dividing both sides by x.  I.E. solve ax = 1

Let us assume that this is true. Let  a=2. Then we have:

ax2 = x
ax = 1
2x = 1
x = 1/2

This seems plausible since we get a value for x and when substitute into the equation it works. However, if we solve it the right way (by subtracting x from both sides so the equation is equal to zero) we will see why dividing by x is not the way to solve the equation.

ax2 = x
ax2-x = 0
x(ax-1) = 0
x(2x-1) = 0

so x = 0 or 2x-1 = 0

x = 0 or 2x-1 = 0
x = 0 or 2x = 1
x = 0 or x = 1/2

Therefore this method gives x = 1/2 as an answer as well but it also gives x = 0 as another possible value for x. This means that the first method is incorrect and the correct way to solve the equation is to subtract x from both sides.


1 / (x+y) = 1/x + 1/y

Let us assume that this is true. Let x=2 and y=3. Then we have:

1 / (x+y) = 1/x + 1/y
1 / (2+3) = 1/2 + 1/3
1/5 = 3/6 + 2/6
1/5 = 5/6

Which is obviously false. It is often better to leave terms of this type in their original form as splitting them up is usually more difficult than evaluating directly.


Trigonometric Errors


sin(x) = sin(x) (note that the symbol beside the second x is degree not power 0)

In calculus sin(x) means the sine of x radians NOT x degrees.  To show an example that these are different, let x=2.  Then we have:

sin(x) = sin(2 0.03489950
sin(x) = sin(2 0.90929743

Even though the value of 2 was used in both equations, the difference between 2 degrees and 2 radians made the answers different. Remember that in calculus the value will almost always be in RADIANS.

This applies to all trigonometric terms, not just sin(x).


sin(x+y) = sin(x) + sin(y)

Let us assume that this is true. Let x= and y=/6. Then we have:

sin(x+y) = sin(x) + sin(y)
sin(+/6) = sin() + sin(/6)
sin(7/6) = 0+1/2
-1/2 = 1/2

This shows that the assumed formula is incorrect (since 1/2 is not equal to -1/2).  The correct formula in this situation is
sin(x+y) = sin(x)cos(y)+cos(x)sin(y). Formula for the other trigonometric functions can be found in the Trigonometric Formulas section.

Note that this applies to any trigonometric function and also for '-' instead of '+'.


cos-1(x) = 1 / cos(x)

Let us assume that this is true. Let x=0. Then we have:

cos-1(x) = 1 / cos(x)
cos-1(0) = 1 / cos(0)
/2 = 1 / 1
/2 = 1

Since /2 is not equal to 1 so the assumption is wrong. This is a common mistake since people often think that because cos2(x) = (cos(x))2 then cos-1(x) should equal (cos(x))-1. However, cos-1(x) denotes the inverse cosine function, also called arccosine, not the cosine function raised to the power -1. See theInverse Trigonometric Functions section for more details.

Note that this observation applies for any trigonometric function.

10 Common English Grammar Mistakes

In reviewing and browsing web sites over the years, I have compiled a list of the most common English grammar mistakes by web authors. Here they are in Letterman (reverse) order.

10. Who, which or that?
"Who" (or "whom") refers to persons. "Which" refers to animals or things, never to persons. "That" can refer to either persons or things.
Examples of correct usage:
The girl who was hungry.
The dog which bit the mailman.
The bus that goes to the station.

9. Anyone vs any one
"Anyone" means "any person," not necessarily a specific person. It could refer to multiple people simultaneously.
As two words, "any one" refers to a single person.
Examples:
Anyone can download my software. But a single-user software license can only be used by any one user at a time.
8. Commonly misspelled words
All right
Dependable
Independent
Recommend
Responsible
Separate

7. Don't put punctuation at the end of a URL
While not technically an English grammatical error, don't put a period or anything immediately after a URL reference. Doing so will usually invalidate the URL. You might call this an internet grammatical rule.
Place the punctuation after the closing anchor tag of the link.
Example: {note that the anchor tags are not actually used so you can see the syntax.}
My URL is {opentag} HREF="http://www.kemptonsmith.com">www.kemptonsmith.com{closetag}.

6. Software not softwares
"Software" can be singular or plural. Never use "softwares."
5. Do the quotes go after or before the period?
Put quotation marks after a period or comma. Put quotes before a colon. Put quotes after a question mark unless the entire sentence is a question. This is a US English standard. British English usage can differ.
Examples:
He asked, "Are you hungry?"
She replied, "Yes."
Did she say, "Yes"?

4. There, their, or they're
"There" is used in two ways. It can specify a place. It can also be used as an expletive or empty word to start a sentence.
"Their" is used as a possessive form of "they."
"They're" is short for "they are."
Examples:
There are nine planets in the solar system.
The two boys raced their bikes.
They're both tired after riding so far.

3. Overuse of Powerful
Too many developers describe their software as, "XXX Software is powerful, easy-to-use, ... ." I searched download.com and found 2149 descriptions or titles of software containing the word "powerful."
Powerful has several meanings, and usually refers to how effectively something is performed, as in muscular. A car with 450 horsepower is clearly more powerful than one with only 200 horsepower. But what is powerful software? If you mean feature-rich (like Adobe Photoshop), then say so. If your software does only one thing, but it does it completely or thoroughly (like CounterSpy), then say so. But please, no more powerful software.
2. Site or sight
A "site" is a location or place.
"Sight" refers to your sense of vision; not to a web site.
Examples:
A web site is a place on the internet that you visit with your browser.
A beautiful sunset is a marvelous sight.

And, finally, the most common English blunder by web authors is:
1. Its or It's
The possessive form of "it" is "its," not "it's." Use "it's" only when it means "it is." Unless you can replace "it's" with "it is," use "its." Never use "its'."
Examples:
It's raining today.
The dog wagged its tail.

how to improve speaking english

The importance of the English language cannot be overemphasized. Comfort with English is almost a prerequisite for success in the world today. Regardless of the industry, proficiency in English is an important factor in both hiring and promotion decisions.
A lot of us have studied English in school and are fairly comfortable with reading and writing. However, we hesitate while speaking because we feel that we lack the fluency and may make grammatical mistakes. We are afraid of speaking Englishin formal situations and we are quick to switch to our native language once we are in the company of our family and friends.
There is no quick fix when it comes to improving your command over a particular language. It always requires a lot of time and effort.
Here are EnglishLeap’s top ten tips for success in achieving proficiency andfluency in English:
  1. Do not hesitate. Talk to whoever you can. Decide among your circle of friends that you will only talk in English with each other. This way you can get rid of hesitation and also have your friends correct you when you are wrong.
  2. Start a conversation with strangers in English. Since you do not know them personally, you will feel less conscious about what they would feel about you.
  3. Maintaining a diary to record the events of your day is a great way topractice your writing skills. Take your time to use new words and phrases when you write in your diary.
  4. Read the newspaper. Read it aloud when you can. Concentrate on each word. Note down the words you don’t understand and learn their meanings. Try to use these words in your own sentences.
  5. Watch English movies and English shows on television. Initially, you can read the sub-titles to follow the conversation. As you practice more, you will realize that you are able to follow the conversation without needing to read the sub-titles.
  6. Set aside an hour every day to watch English news channels. This is one of the most effective ways of improving your comprehension.
  7. Podcasts are available on the internet. These are audio and video files and many of these can be downloaded for free. These are a great way to practice listening skills and develop an understanding of different accents.
  8. It is usually quite difficult for a beginner to understand the words of an English song as there is background music and the accent of the artist may be unfamiliar to the listener. Read the lyrics while you listen to the song and you will comprehend better. Once you start following the voice of a particular singer, you will find it much easier to understand the singer’s other songs too.
  9. Another effective way is to record your own voice and listen to it. You will notice hesitations and pauses. You may also notice that you make some grammatical mistakes while speaking that you do not make while writing. You must aim to improve and rectify these mistakes in subsequent recordings.
  10. Ask people who speak better for advice. There is no shame in seeking help especially if you are trying to improve yourself. Talk to them in English and ask them to correct you whenever you are wrong.