Mathematic and Computer

Check out this quick tutorial! Click here to watch the video!

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1) Divide 98 by 2, making note of the remainder. Continue dividing quotients by 2, making note of the remainders. Also note the star (*) beside the last remainder.

Division	Remainder,R
98 / 2 = 49	0
49 / 2 = 24	1
24 / 2 = 12	0
12 / 2 = 6	0
6 / 2 = 3	0
3 / 2 = 1	1
1 / 2 = 0	1*

2) The sequence of remainders going up gives the answer. Starting from 1*, we have 1100010. Therefore, 98 in decimal is 1100010 in binary.

Example 2: Convert 21 into binary.

Division	Remainder,R
21 / 2 = 10	1
10 / 2 = 5	0
5 / 2 = 2	1
2 / 2 = 1	0
1 / 2 = 0	1*

Therefore, 21 in decimal is 10101 in binary

Binary to Decimal

Now, how to convert from binary to decimal number. Binary to decimal conversion follows the same steps as decimal to binary, except in reverse order. We begin by multiplying 0 x 2 and adding 1. We continue to multiply the numbers in the "results" column by 2, and adding the digits from left to right in our binary number.

Example 1: Convert 11101 from binary to decimal.

Operation	Result
0 x 2 + 1	1
1 x 2 + 1	3
3 x 2 + 1	7
7 x 2 + 0	14
14 x 2 + 1	29

Therefore, 11101 in binary is 29 in decimal.

Binary numbers, as with decimal, octal, and hexadecimal numbers, are organized into columns. To learn binary math, we first need to understand how number systems operate. Let's take a look at the decimal system first, since it is simple and easier to think about. We can consider the number "1234" as,

Thousands	Hundreds	Tens	Ones
1	2	3	4

Which means,
1234 = 1x1000 + 2x100 + 3x10 + 4x1

Given,

1000 = 10^3 = 10x10x10
100 = 10^2 = 10x10
10 = 10^1 = 10
1 = 10^0 (any number to the exponent zero is one, except for zero)

The table above can be represented as,

Thousands	Hundreds	Tens	Ones
10^3	10^2	10^1	10^0
1	2	3	4

such that,

1234 = 1x1000 + 2x100 + 3x10 + 4x1 = 1x10^3 + 2x10^2 + 3x10^1 + 4x10^0

The decimal system, as with decimal math, operates in "base 10" (dec being the Latin prefix for ten) using the digits 0-9 to represent numbers, whereas the binary system, as well as its math, operates in "base 2" (bi being the Latin prefix for two) using the digits 0-1 to represent numbers. The base is also known as the radix. In other words, the table above can be represented as,

	Thousands	Hundreds	Tens	Ones
Decimal	10^3	10^2	10^1	10^0
Binary	2^3	2^2	2^1	2^0

In base 10, we put the digits 0-9 in columns 10^0, 10^1, 10^2, and so on. To put a number that is greater than 9 into 10^n, we must add to 10^(n+1). For example, adding 10 to column 10^0 requires us to add 1 to the column 10^1.

In base 2, we put the digits 0-1 in columns 2^0, 2^1, 2^3, and so on. To put a number that is greater than 1 into 2^n, we must add to 2^(n+1). For example, adding 3 to column 2^0 requires us to add 1 to the column 2^1.

Here are some decimal numbers represented in binary.

Decimal	Binary
1	1
2	10
3	11
4	100
5	101
6	110
7	111
8	1000
9	1001
10	1010

look at the upper left hand side when you are logged in to your Gmail account.

Google Document location: Upper left corner

The Documents link as seen below.

Clicking the Documents link opens a page as seen below.

This is where we can share our document to our friend. If you want to see the complete how to use this aplication, you can visit http://www.google.com/google-d-s/intl/en/tour1.html
There is you can find a tutorial about Google Docs.

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This seems intended to compete Googgle, since a year ago has spread documents operation programme online and free, through the features of Google.doc, Office 2010 product will be marketed to corporate and individual. The online version will also be provided so that we can buy the software by downloading it.
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Math Through Technology

When you think of "technology," many applications may pop into your head, but "teaching tool" may not necessarily be one of them. Why is this? Perhaps it's because of its newness, but technology in the classroom should not be shied away from. To the contrary, it can be one of the most effective teaching tools available.

Educate Your Students By Gaining Their Interest

Students these days are subjected to a barrage of fast-paced mental stimulation, from music videos to video games. Too many teachers see these as hopeless competition, when really they could be using the same techniques to grab students' attention and teach them something at the same time. Textbooks may be the backbone of the classes you teach - it is hard to do otherwise, really - but by no means must they be the only source of learning.
• Getting your students active and working together is your best avenue toward getting them interested. Technology is a great tool for this: not only will your students have a more vivid memory of their math lessons, but they will be learning a slew of technical skills as well. Send your class on WebQuests for research. Instead of poster-board team projects, why not have them construct a PowerPoint presentation? Take them to the school's computer lab to check out math-related podcasts. (If your classroom has individual computer, so much the better!) Engaging your students and keeping them active will really make your lessons memorable, and teach new skills to boot!
• Mix things up! If you only stick to one variation of interaction, it will become just as much of a routine as textbooks in no time flat. Play a math game with your students one day, and play them some math music the next. Every day can’t be extra-special (those chapter tests have to come sometime), but your students will treasure the times when they are.

Educate Your Students by Educating Yourself

Perhaps the greatest thing about technology is how, by definition, it is forever changing and evolving. However, as technology changes, you have to be prepared to keep up with it. Luckily, there are many different resources available to teachers for honing and upkeep of your tech-savvy skills.
• One of your biggest allies is the internet -- take this very site, for example! Many educational resources you already trust have online outlets these days. PBS is a shining example, with an assortment of ideas and sources to supplement your lesson plans at any specific topic or grade level grouping.
• If you find yourself growing bored at your own lessons, then perhaps you need a little more than just some website suggestions. In fact, a refresher course of even a new degree may be in order. Of course, these days you don't have to give up your teaching career while you get an education of your own! Many online teaching universities offer instructional technology degrees to bring you up to date on cutting-edge learning theory and all the latest in software and multimedia (and how it best fits in with your curricula!), and best of all, you can take the classes on your own time and even work new ideas into your current lesson plans!

I think, I agree with this article. I had ever do the tips, and I think students more enjoy with mathematics.

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Some time ago I tried to find in stores around where I live, but has not been found. Maybe in other cities already have or may be we can not find yet in Indonesia?

1. The inclusion of Flash Lite, which should open up a whole new world of web pages to the mobile community.
2. Include Google Gears, which will offer access to Google applications like Gmail and Google Docs when offline.
3. Adds support for silky-smooth OpenGL ES hardware accelerated graphics. This should help make the browser's animations more fluid (this requires 3D hardware and drivers, available on many smart phones, including HTC models).
4. The new version also uses server-side compression to offer ultra-fast page load times. In a speed test, the new browser loaded a website in 9 seconds that took Microsoft's Internet Explorer mobile over 3 minutes.

It is worth noting that most of these features are available in the beta of Skyfire, a new independent browser entry for Windows Mobile smart phones. However, Opera Mobile 9.7 one ups Skyfire as well, offering WXGA and VGA support. Opera Mobile is also available on a couple of mobile OS's besides Windows Mobile. It's also supported on S60 and UIQ operating systems.

Sadly, neither entry is available for the popular iPhone, due to Apple's restrictions on third-party browsers. However, the good news is that these new entries place the onus on Apple and other smartphone makers to make more full-functioned browsers or risk losing business.

Opera Mobile 9.7 is currently being tested and will be released to the public in a few short months.

Info: www.dailytech.com

1. Try not to frown on wrong answers. It discourages students from participating. Critical thinking and honest effort are more important than correct answers

2. There is no teaching without control of your class. It is better to fall behind by a day or two early in the year to address discipline, than to have an uphill battle all year long over behavior.

3. Avoid talking over your students. If there is too much noise in the classroom, sometimes the best thing to do is to stop talking.

4. Routine and structure are good, but too much of it can cause you and your class to fall into a rut. Try to vary activities from time to time.

5. Encourage active participation from your students. From time to time, call students to the board, or allow them to work in groups. Avoid giving teacher-directed lessons all of the time.

6. Try to be flexible. Math can be a rigid topic, but you don't have to be. For example, I have a strict rule against chewing gum. But I close my eyes to it during a test.

7. Try to spell out what topics will be on the test. Telling your students to "Study Chapter 6" is not enough, especially if they have poor study skills.

8. In some schools, math is the only subject where students are grouped by ability (i.e. homogeneously). This makes it stand out more than other subjects. Parents may frequently ask: "Why didn't Johnny get an A in math? He got one in all his other subjects." Some parents may insist that their child be placed in the top math group, even when the child does not belong there.

9. It is important to get support from an administrator when it comes to difficult issues such as math groupings. Ask that they be present at conferences with difficult parents.

10. If a student was present for all the material taught, but is absent on the day of the test, then on the day the student returns, inform him/her of the make-up day and time. Don't let it go more than a day or two. However, if the student missed part or all of the material taught, you should give him a deadline by which to make up all missed work, and a new test date. It may be helpful to contact the parent in this case. A student should not be penalized for being absent. However, they can be penalized for failing to make up missed work.

11. I recommend a technique called "Front Loading". Students are most motivated to learn at the beginning of the school year. Rather than reviewing material from the previous school year, why not introduce a topic they haven't seen before?

12. Try to teach students good problem-solving skills. When your students enter the work place, their superiors will not give them a worksheet with 25 least common multiple (LCM) exercises. They will more likely have a scheduling problem that needs to be solved using LCM concepts.

13. To motivate students, give out awards for both good academics and for good effort.

14. Do your best to be fair to students. You will earn their respect this way.

15. The best motivator of all is connecting math to the real world. For example, when teaching the metric system, have students bring in empty cartons and bottles from their kitchen.

From: http://www.mathgoodies.com

You can see this math problems in http://matematikomputer.blogspot.com with the Indonesian language. I hope it will bring advantage for you.

EXERCISE

Because the capacity of RAM is exhausted, RAM (Random Access Memory) commonly used to store data in computers. This means the data can only be viewed on screen, but we have not saved to storage media, such as Hardisk, flash, CD Room, and so forth. The more applications that we open in our computer, the more likely that we use the RAM. As an illustration of RAM as follows. Eg in the computer we installed RAM with a capacity of 512 Mb. Each application will be open that we need RAM, or easily open each individual application we then have a supply of RAM will be reduced. For instance, for example, if we open a Microsoft Word, Microsoft Word will then need temporary memory (RAM) of 300 Mb (not the actual data, because I had not need Microsoft Word to measure how much memory to be able to walk), the supply of RAM that is live ( 512-300 = 212 Mb). If we reopen the application can not be more than 212 Mb, if the application dibukan exceeds 212 Mb, eg Microsoft Excel memory required is 300 MB, the computer will Hang (OVER CLOCK), because the memory requirement for running the program is not enough. To increase the capacity of RAM is usually we need to purchase additional RAM, to be larger. However, the material in this time we will increase the capacity of RAM with FLASHDISK, with the argument, that can work double-flash can be used for RAM can also save data. The greater capacity of flash, then the larger the RAM, which you can add.
From: http://www.ilmukomputer.com/

1604 - Gunadarma University
1762 - Ten Nopember Institute of Technology
1960 - STT Telkom
2013 - Petra Christian University
2152 - Brawijaya University
2159 - Sebelas Maret University
2672 - Airlangga University
2730 - University of Padjadjaran
3016 - Electronic Engineering Polytechnic Institute of Surabaya
3138 - Diponegoro University
3198 - Hasanuddin University
3254 - University of North Sumatra
3310 - Yogyakarta State University
3347 - Indonesia University of Education *
3491 - Lampung University
3669 - Duta Wacana Christian University
3821 - Universitas Islam Indonesia
3950 - University of Udayana
3983 - Maranatha Christian University
4430 - University Mercubuana
4572 - University General Soedirman
4780 - Jember University
4800 - Semarang State University

Source: Webometrics.info

Is such that:
Refers to the target "level Mathematics SMU"
Make a spreadsheet with the order of the subjects increased "step by step"
Provide a spreadsheet can be completed by their children every day in less than 30 minutes

Takeshi practice with the system to learn this routine every day. The result, he can complete Persamaan Integral calculus and differential tuition equivalent high school level, while still sitting in the class 6 SD. Toru Kumon and wish that other children also benefit as this study. She applies this to the children in an environment where. The result is satisfactory, and the Kumon learning system developed from mouth to mouth. Today, Kumon not only to spread throughout Japan, but also to the world.
Travel Kumon Education System
1954 Year 1954 Toru Kumon Kumon learning system created for her son, Takeshi, who was sitting in when the class 2 SD
Opened in 1956 the first class using the Kumon learning materials
Founded in 1958 the organization "Kumon INSTITUTE OF EDUCATION" which is based in Osaka, Japan
1962 Opened office in Tokyo, Japan
1974 Class Kumon outside Japan first opened in New York, USA
1980 English Program (Reading) have been developed
Opened in 1990 "Swiss Kumon High School in Leysin, Switzerland
Opened in 1993 "Kumon International High School" in Yokohama, Japan
2000 Number of students in the world reaching more than 2.6 million anakDidirikan Regional Headquarters for the 5 regions: Japan, North America, South America, Europe & Africa, Asia & Oceania
2006 Number of students in the world reaching more than 3.9 million children