Many attitude in my class at Vincent Study Center

Tell About My course : Vincent's Study Center....
Facilities : Comfort Class Room, activity Learning - Discuss and Exercise for Junior High School and Senior High School for Group n Private Course (Math, Physics, Chemistry). Student Center Teaching.



Many activities in my course at Vincent Study Center....
They come as their schedule, and go home, and another students come and go.....

There are many activities :




















Listening when I teach them, practice the exercises Maths, or Physics or Chemistry....
Ask n answer....

They are discussing about math, Physics, and Chemistry....Do they exercise....

Sometimes they feel hopeless to solve the exercise....Like this photo :

After their schedule they sometime wait their parents to pick them up...
Sometimes they play jokes, listening the music from their cell phone, sometimes they tell about film, about the subjects in school, tell about music, tell about their friends or teacher whom they hate or like, tell about terms n conditions at their school, tell about exam, etc...

Closing with them, make me feel young, and know what they need, what they want, and what they think, know their world which is different with us....

Sometimes I want to laugh, surprised, and I don't know what to tell about....Sometimes they attitude so kind, so rude, not control what they say or what they do, but sometimes they look funny, georgeous, innocent and salute with their achievement.

Sometimes they no attention with exercise, blank mind, or sometimes they encourage each other...sometimes they look so tired, boring, and hopeless...
But they are our students..I must encourage day to day....

These are some photoes :

I am explain to my private student...

That's my little story about my course and about my students.....
I'm proude to be their teacher....

Just for Fun......

1. Johny, Leo, Vincent, James and Fanny undertake to paint a house. It will take Johny, Leo, and Vincent 7 1/2 days to complete the job. When Johny, Vincent and Fanny work together, it will take them 5 days to complete. When Johny, Vincent and James work together, it will take them 6 days to complete. And when Leo, James, and Fanny work together, it will only take them 4 days to complete the paiting job. How long will it take Johny, Leo, James, and Fanny to complete the job if they all worked together...?
2. Mr Harry brought home a bag of sweets for his grandchildren. He gave the first grandshild 2 sweets plus 1/13 of the remaining sweets. He then gave the second grandchild 4 sweets plus 1/13 of the reminder. To the third grandchild, Mr Harry gave 6 sweets plus 1/13 of the reminder. He continued the methode by giving the next grandchild extra sweets than the previous one and 1/13 of the reminder. The last of Mr Harry's grandchild took his share and found that there was no more reminder.Given that each of Mr Harry's grandchildren receives an equal number of sweets, how many grandchildren does Mr. Harry have. Also find the number of sweets each grandchildren receives...?
3. Three men are placed one behind another in front of a wall. The men are blindfolded and told that a hat will be placed on their head taken from a bin conmtaining 3 white and 2 black hats.
4. The blindfolder is then removed and each man is asked to determine the colour of the hat he is wearing. The third man who is furthest from the wall sees the other two men's hat and says, "I cannot tell what colur hat I am wearing." The second man who hears the third man's reply and sees the colour of the hat the first man is wearing says the same thing. The first man after hearing the replies of the other two men says, " I know the colour of the hat I am wearing." Do you know how he came to this conclusion and what is the colour is..?
5. A man with a dog, a rabbit and a bunch of lettuce came to a riverbank. There is only a small boat that can carry the man and one of the animals or the lettuce. The problem for the man is, : If left alone together, the dog will eat the rabbit and the rabbit will eat the lettuce. How can you help the man to transport his animals and his lettuce safely to the other side of the river...?

It's just for funny....Hemmmm....Yummy...spent the time to joke with your friend....

Permutations and Combinations

Perrmutations and Combinations

1. The multiplication principle or (r,s) principle

It states that if one operation can be performed in r ways, and a second operation can be performed in s ways, then the two operations can be performed in succession in r x s ways.

Note : The principle can be extended to any finite number of operations

2. Permutaion

(a). A permutaion is an ordered arrangement of all or part of a set of objects in a row.

(b). The umber of permutaion of n different objects taken all at a time (without repetition), is donated by ⁿP_n and ⁿP_n = n ! where n! = n(n – 1) (n – 2) ...x 3 x 2 x 1

(c). The number of permutations or arrangements of n different objects, taken r at a time (without repetition) is donated by ⁿP_r where

(d). The number of permutations of n objects (not all distinc), taken all at a time, where thee are p objects alike of one kind, q objects alike of another kind and the rest are distinct, can be done in . (This result can be exdtended to many finite number of groups of objects).

3. Combination

(a). A combination is a selection of objects in which the order of selection does not matter.

(b). The number of combinations or selections of n different objects, taken r at the time, is donated by

Note : ⁿC_o = 1 ; ⁿC_n = 1 ; ⁿC_r = ⁿC_{n- r}

(c). The number of selections from n different objects, taking any number at a time is 2ⁿ - 1

EXERCISES

1. A sixth from contains the Head Boy, the Head Girl and 8 other students. The form is asked to send a group of 4 representatives to a conference. Calculate the number of different ways i which the group can be formed if it must be contain :

(i). both the Head Boy and the Head Girl

(ii). Either the Head Boy or the Head Girl, but not both

2. Calculate the number of ways in which :

(i). 5 children can be devided in to group of 2 and 3

(ii). 9 children can be devided into groups of 5 and 4

Hence calculate the number of ways in which 9 children can be devided into groups of 2, 3, and 4

3. A row of 10 houses is to be painted in 3 colours, 2 houses ae to be red, 3 to be blue and 5 to be white. Find the number of different ways in which the row of the houses can be painted :

(i). with no restrictions

(ii). Given that the first and the last houses in the row are blue

(iii). Given that the first and the last houses in the row are the same colour.

4. Find the total numbers of different permutations of all the letters of the word RESERVE.

Find the number of these permutations in which :

(i). E is the first letter.

(ii). The two Rs come together

(iii). S and V come at the ends of the permutations.

5. Find the number of ways in which a team of 6 batsmen, 4 bowlers and a wicket-keeper may be selected from a squad of 8 batsmen, 6 bowlers and 2 wicket-keeper.

Find the number of ways in which :

Technorati Tags: permutation,combination,probrability

(i). this team may be selected if it is to include 4 specified batsmen and 2 specified bowlers

(ii). The 6 batsmen may be selected from the 8 available, given that 2 particular batsmen cannot be selected together.

6. Calculate the total number of different permutations of all letters A, B, C, D, E and F when :

(i). there are no restriction

(ii0. the letters A and B are to be adjacent to one another

(iii). The first leter is A, B, or C and the last letter is D, E, or F.

7. A tennis team of 4 men and 4 women is to be picked from 6 men and 7 women. Find the number of ways in which this can be done.

It was decided that 2 of the 7 women must either be selected together or not selescted at all. Find how many possible teams could be selected in these circumstances.

The selected team is arranged into 4 pair, each consisting of a man an a woman.

Find the number of ways in which this can be done.

8. At an art exhibition 7 paintings are to be hung in a row along one wall. Find the number of possible arrangements

Given 3 paintings are by the same artist, find the number of arrangements in which :

(i). these 3 paintings are hung side by side.

(ii). Any one of these paintings in shung at the beginning of the row but neither of the other 2 is hung at the end of the row.

9. A shelf is to contain 7 different books, of which 4 were written by Dickens and 3 by Hardy. Find the number of aangements in which :

(i). no two books by the same author are adjacent

(ii0. the first two books at the left-hand end are by the same author.

10. A editor has space for 6 advertisements, one on each of the first 6 pages of the magazine. Of the 6 advertisements to be displayed, 4 ar for household goods, 1 for gardening equipment and 1 for sports equpipment. In how many different ways can the advertisements appear in the magazine if the 4 advertisements for household goods must appear on consecutive pages ?

Answers :

1. (i). 28 (ii). 112

2. (i). 10 126 ; 1 260

3. (i). 2 520 (ii). 168 (iii). 784

4. 420

(i). 180 (ii). 120 (iii). 20

5. 840, 72, 13

6. (i). 720 (i). 240 (iii). 216

7. 525, 225, 24

8. 5 040 (i). 720 (ii). 1 440

9. (i). 144 (ii). 2 160

10. 144

Motivating Children to Keep Diligent at Study

When we hear word "Learning", most children won't do that. Let's see what Mrs. Shelly always shouts first to order her children to study "My children always hide from me, when I command them to study. When I find them, they run and hide anywhere.Like play hide and seek.It make me angry", she said. As a parents of course we want our children being a smart and clever, and don't loose subjects at school, but how to make our children like "learning" ?

Okay, these are the tips.....

1. Make a good example for the kids.
Parents are the example for their children, so we must give them a good example. When parents command and watch them learning, try an acts as you are learning something, for example reading a book or discussing something mempelajari sesuatu. Sometime take them discuss some hot topics together. So the children can see that the parents are learning too.

2. Choose the good time to study
When the children are tired, they won't do anything. So, try to choose a good time to study with fresh condition of your children . You can try to choose time to study at evening, when they have take a bath..

3. Make a schedule
Children always do something exactly. With a daily routine study schedule, they will understand that a time to study and obey it.

4. Knowing your children's concentration
every children have concentration power and every children have a different level. Take a look you rchildren ; is your children as a child who can concentrating about 2 hour or only 30 minutes. If your children is a child who have short concentration, give them take a rest and they can continue their study .

5. Give your help when they need to
When they do their homework, sometimes the chldren faund difficult to solve the problems. Help them to solve the homework. Not necessary all of the homework you solve, but only oen or two numbers that difficult for your children. So the children know how to solve it....

With several tips above, I hope Mrs Shelly doesn't shout and "play" hide and seek with her children to order them to study anymore ...

Helping Your Child Learning Math

As our children go about their daily lives exploring and discovering things around them, they are exposed to the world of mathematics. And since mathematics has become increasingly important in this technological age, it is even more important for our children to learn math at home, as well as in school.

This second edition of Helping Your Child Learn Math is for parents of children in kindergarten through fifth grade. It has been revised to include a variety of activities that will help children learn and apply mathematical concepts such as geometry, algebra, measurement, statistics, and probability in a useful and fun way. All of the activities in this book relate math to everyday life and complement many of the math lessons that children are learning in school. These fun activities use materials that are easy to find. They can be done in the home, at the grocery store, while traveling, or just for the fun of it.

Attitude Counts

How do you feel about math? Your feelings will have an impact on how your children think about math and themselves as mathematicians. Take a few minutes to answer these questions:

Do you think everyone can learn math?
Do you think of math as useful in everyday life?
Do you believe that most jobs today require math skills?

If you answer "yes" to most of these questions, then you are probably encouraging your child to think mathematically. Positive attitudes about math are important for your child's success. This book will help reinforce these positive attitudes about math.

Taken from : http://www.ed.gov/pubs/parents/Math/intro.html