Tag: Calculator

Watch What Happens If You Try To Divide By Zero On This Mechanical Calculator

Youll probably remember from your math lessons at school that you cant divide a number by zero, even if you didnt understand why exactly. If you try to divide a number by zero on a electronicpocket calculator, itll pop upwith a message saying Error. If you try this on a mechanical calculator, it looks like youve ripped an irreversible hole in the fabric ofspace-time.

This video by MultiGlizda shows the chaos that unfolds when you try to divide by zero on a Facit ESA-01 mechanical calculator with its casing off. Not only does it give an interesting insight into how these old calculators work, it also reveals the slippery nature of the number zero and its division.

As YouTube channel Numberphile explains, division is based on subtraction. If you want to divide a number by a second number, you simply subtract the second number from the first over and over again. For example, 20 divided by 5 would be: 20 – 5 = 15, 15 – 5 = 10, 10 – 5 = 5, 5 – 5 = 0. Since that took 4 subtractions, the answer is 4.

However, divide 20 by 0 and youll end up subtracting 0 from 20 an infinite amount of times. While that doesnt mean that 0 equals infinity, it appears that the mechanical calculator is attempting to complete the infinite number of operations it believes it needs to complete the division. You can check out this Numberphile video if you want to know more about dividing by zero and why it doesnt equal infinity.

Meanwhile, some say the Facit ESA-01 is still flicking through numbers to this day.

Read more: http://www.iflscience.com/technology/retro-mechanical-calculator-freaks-out-if-you-try-divide-zero

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Children Don’t Need Calculators To Learn Math!

I received a request to share an article with all of you from NannyPro.com. They’ve published an article and thought it would be a good fit for you, the readers of our blog. I read through it and agree that it is appropriate and a good fit. So without further ado, here it is:

Why Every Kid Should Be Able to Do Math Without a Calculator

by Michelle

In a highly-advanced technological age where every child seems to have a smartphone complete with a powerful calculator in their pocket, it may seem silly to make sure that they still are able to do math without the assistance of a calculator. However, there are plenty of reasons why children should know how to solve basic equations without a computer’s intervention. Regardless of how ubiquitous calculators and calculating software seem to be, there are things that a child simply can’t learn from plugging numbers in and instantly receiving an answer.

Learning to Operate in the Real World

While it’s quite likely that your child will almost always have access to a calculator of some sort in his adult life, it’s still important that he have at least a basic understanding of how to work out simple mathematical equations. Technology isn’t infallible, and there may come a time when he needs to come to a numerical conclusion and has no access to a calculator. When children rely on technology to do all of their work for them, they’re missing out on necessary life skills.

Learning Real Skills Versus Learning to Operate Software

A 2007 report by the Institute of Education Sciences and the National Center for Education Evaluation and Regional Assistance to Congress shows that 16 of the best and most powerful reading and math learning software programs had no measurable effect on test scores. Students learned how to operate the software to obtain the desired affects, but not to apply the underlying concepts in daily life. No matter how well your child learns to solve equations on his calculator, he will essentially be missing the most important part of the exercise: how the solution is found. Kids can’t watch a calculator perform equations in real-time or observe the various steps in between. They simply enter a set of numbers, and another is returned to them. Manipulating a calculator with speed and accuracy doesn’t necessarily indicate that your child has the first idea of how to complete that same equation with a pencil and paper.

Obtaining Higher Education

Kids as young as those in elementary school are given calculators as a part of their curriculum, a practice that’s often continued all the way up to high school. What parents may not realize, however, is that many university math departments do not allow the use of a calculator. When a high school honors student is struggling merely to pass his first math classes in college, the hit to his self-esteem alone could affect his performance in the realm of higher education. Introductory collegiate mathematics classes generally ban calculator use, largely because in higher math the numbers are secondary to the abstract equations. For a science or mathematics-based major, the ability to understand the basic parts of an equation is essential. A calculator is of absolutely no use beyond introductory calculus, nor will it help a physics student find the answers they’re looking for. Instilling basic, core competency in these areas from a younger age and actively using those skills throughout high school far better prepares a young student to explore an education beyond the walls of that high school.

In an educational environment that relies largely upon calculators in the classroom, figuring out a way to instill basic mathematical principles and an appreciation for arriving at a solution through figuring it out independently isn’t easy. As long as calculator use is encouraged, and even required as part of a public curriculum, the responsibility to teach and reinforce basic equation-building and mathematical skills will fall upon the shoulders of parents. When your child protests that calculators are everywhere and he’ll never need to know how to work out a problem manually, explaining all of the reasons why he should still acquire these skills may help to soothe his indignation.

If you’d like to see the article at NannyPro.com’s  site, you can view it here: http://www.nannypro.com/blog/why-every-kid-should-be-able-to-do-math-without-a-calculator/

Of course if your child needs a boost in their math proficiency confidence – we are always ready to help them at Mathnasium.com/cherryhill.

Have a great day!

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Mental Math and Your Child

Here’s a very interesting article I found on teaching your child mental math via the Vedic Math system. Makes for a very good read.

Homeschool Your Child To Vedic Math – The Worlds Fastest Mental Math System

Some questions to ponder:

– How could the Aryan civilization, near the Hunza Valley, 5,000 years ago, mentally compute mathematical operations that today only a calculator could achieve?

– And if the Math could not be done mentally, how could they do everything we know today, IN ONE-LINE? eg: converting the fraction 1/19 into a decimal is an 18 digit answer that requires 35 lines of exhausting long division, how could they do it in a one simple line solution?

– Why is NASA using this MENTAL ONE-LINE SYSTEM OF ARITHMETIC in the field of Advanced Artificial Intelligence? Why is INTEL using it in chip designing?

– How can your child become a Human Bio-Calculator?

– Is the current Western Math Curriculum keeping our Children in a state of limited intelligence?

You are home schooling your 14 year old teen in Math. You feel you can instill better values, character and education to your children. You want to give the Best to your child. You want to provide quality which is unattainable in schools. Imagine how your child would feel when he immediately realizes that you are teaching him powerful ways to do Math Calculations without any extra burden on the both of you. Infact he would now want you to take the Math Classes more often so that he gets a hang on to these new systems.

This system of teaching Math can complement your family’s strong learning system and can instill the values you want to develop in your child. It requires just knowledge of multiplication tables up to 9 to start learning it and it is easy to learn, Master and teach your child without being overwhelmed. Infact once you spend 2 minutes with your child on teaching him how to do this sum (shown here) he can at once teach 5 more of his friends to do it. It’s that simple!
Here’s a quick example of one of the Technique:

65 x 65 = ?

It is quite simple since both digits start from 6, so you take 6 and multiply with the next number 7 which gives you= 42 , the first part of the answer and take 5 and multiply by the next units 5 which gives you 25,so the final answer is 4225. Try 85 x 85 now. Answer 7225. Try 95 x 95 – Answer 9025 in the similar way.

Now how long did that take? This method can also be said to be the fastest in the world in mental math.

This system has the prowess to speed up Math Calculations by up to 1500% and supposedly seemingly difficult calculations like 998 x 997 can be solved in less than five seconds flat. With this system you can home school your child into becoming a Human Bio Calculator in a matter of a week’s time.

The answers to the question posed by this article in the beginning are found by understanding the ancient Indian system of High Speed Vedic (Sanskrit for Knowledge) Mathematics. It was rediscovered by Tirthaji (1884-1960) who was dux of India in Math and Sanskrit Philosopher who wrote and spoke perfect English. He reached the position of a Respected Pope in India, toured the United States in 1958 giving math lectures in Stanford, Caltech and even MIT and discovered the math knowledge which can solve every known math problem mentally and faster. He called his book and the subject ‘Vedic Mathematics’ after the Indian Scriptures called Vedas which mean knowledge. It is absolutely mathematical, scientific and global in nature and has nothing to do with any religion. Which means any person of any religion, country, ethnicity, color or race can use it and apply it and enjoy its tremendous benefits all across the world. No wonder it is being used by students from around the Globe of every race and origin to making their math calculations easier and is increasingly getting popular. Even NASA, INTEL and Microsoft are using it for the high end applications of Vedic Math.

A Look at this High Speed Vedic Mental Math tutorials and slide shows confirms the fact that it is indeed a miracle waiting to happen to your child.

Any teenager can learn Vedic Mathematics and enhance his numerical abilities. It helps the students not only in traditional academics, but it also enhances the IQ by enhancing the analytical skills and thought processes. This happens because the system is very coherent and intuitive and uses both sides of the brain thereby giving the student the winning edge. It is very satisfying to see young children’s eyes brighten when they see and learn the High Speed Vedic system and techniques.

Thomas, a 16 year old was able to apply these techniques with ease and without confusion when he learnt the Vertically and Crosswise Formula of multiplying two and three digit numbers Mentally and in One Line. He was able to solve correctly over 75 problems in less than 10 minutes which normally takes from 45-90 minutes to solve. This is simply incredible.

So how do you get started and homeschool your child into this system in a week’s time?

First your child should be over 14 years of age and should know multiplication tables upto 9. That is the only criteria to learn this system.

Try going through the High Speed Vedic Mental Math tutorials and see if your child enjoys the new methods. Show them the slide shows. You would have live results for your self whether or not to choose this as an alternative means to learn Math.

Squares of Numbers ending in 5

Multiplying numbers by 11-19 in less than five seconds

Instant Subtractions

Speed Division by 9.

See if he shows an interest. It shouldn’t overwhelm or burden him in any way. It should be as natural as possible.

Ask Questions to us. Go through the FAQ on our website below. Clarify your doubts you would have before deciding to introduce your child to it.

If you feel satisfied and your child is showing interest order a book or a DVD Set of over 10 hours on this phenomenal system which would suit your child best. I am sure if you could do these methods and are wondering why you didn’t learn them as a child-remember you could relive your childhood by introducing them to your child now. You could be igniting such a spark in your child now that he could be using this system for all his life and even introducing them to the next generation.

Give your child the best of education unattainable in schools.

By:
Article Directory: http://www.articledashboard.com

This Article is by Gaurav Tekriwal, who has been conducting High Speed Vedic Maths Workshops and has trained over ten thousand students across the world in the field. He is an expert in the field and revolutionizes the way children learn math.

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So after reading this, are you ready to help your 14+ year old learn math via the Vedic Math system? Or maybe YOU just want to learn this?  😉

Have a great New Year!

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