Monday, July 14, 2014

Learning Algebra on the Right Side of the Brain

Learning Algebra on the Right Side of the Brain

Why is algebra (perhaps the "language of God") such a high-stress, high-failure subject? One of every two students fails the course and walks away with the harmful conclusion, "I guess that I am no good at mathematics!" I want to present three explanations for this strange result that disables 50 percent of our student population. I will conclude with solutions that promise an exciting turn-around for students of all ages.

Seventh-graders were asked to solve this word problem: "Orville and Wilbur owned a bicycle shop which also sold tricycles. One day, they decided to take an inventory of their stock. They each volunteered to count one item, which would have worked out just fine if one had counted bicycles and the other had counted tricycles. But Orville and Wilbur were both very independent thinkers. Orville counted the number of pedals in the shop and Wilbur counted the number of wheels.

     "Orville found that they had 144 pedals in the shop, and Wilbur found that they had 186 wheels. All pedals and wheels were actually parts of either bicycles or tricycles. They were just about to start over with their inventory when their friend Kitty, who was a good problem solver, challenged them to figure out the number of bicycles and tricycles from the inventory they had already done. Can you help the Wright brothers? How many bicycles and tricycles did they have in their shop?..." (San Jose Mercury News, April 3, 1995).

     Some kids perceive this as a fun puzzle and joyfully speculated about possible ways to develop an answer. Other youngsters perceive this word problem as absolute nonsense. They reason: We are talking about the Wright brothers, owners of a bicycle shop in Ohio. The brothers are famous for doing the impossible---inventing a bicycle that flies in the air. Secondly, these thoughtful students (who probably will get "F" in algebra) do not believe that the geniuses who invented the airplane would waste valuable hours counting wheels and pedals when the simple solution is to count bicycles and tricycles. Surely these intellectual giants have something better to do with their time.

Nobody cares about word problems--- not even the writers of algebra textbooks

The reason we find nonsensical word problems in those textbooks is that it is impossible to find meaningful problems in real life. (I challenge anyone to e-mail me one meaningful word problem from the real life of ordinary people that can be solved with algebra. You can reach me at TPRWORLD@aol.com) Writers must invent synthetic word problems that are of no interest to anyone, including those who wrote the textbook. For example, Ellen is 7 years older than her sister, and the sum of their ages is 21 years. How old is each? First, this is a puzzle and not a problem because no one cares one way or the other about Ellen or her sister.

Secondly, not only is the answer already known, but the answer came before the question. Unless you already know the ages of both Ellen and her sister, how can you conclude (a) that Ellen is 7 years older than her sister, and (b) the sum of their ages is 21 years? The ages of Ellen and her sister had to be known in advance. So why ask the question?

Here is another example taken from a textbook used in the first algebra course. Notice that the question will be of interest to no one---not even the author of the algebra text: "In a class of 37 pupils there are five more girls than boys. How many boys and how many girls are there?" We could continue with those mind-numbing word problems about trains going in opposite directions and meeting somewhere on the journey. Why would anyone want to predict where they will cross paths and how long it will take to do this? I wonder whether professional railroad personnel have ever bothered to sort out the answers to this puzzle. Does it have a trace of relevancy to the operation of a railroad? Is it of any interest to passengers on a train? If it is of no concern to those who operate or ride trains, why should it be of concern to us?

Explanation Number 2 for why students fail

There is the assumption that algebra is absolutely positively an essential skill for boys and girls in all walks of life. Not only does everyone need algebra, but students cannot hope to pass those entrance examinations to enter college without an understanding of algebra. 

I invite you to visit any shopping mall in America, stop ten people at random, and ask this question: "Once you were out of school, can you think of a time in your life when you used algebra to solve an important problem? If so, what was it?"

I predict that you will not find one person in ten who will answer in the affirmative. Even airline pilots have tables and ready-made graphs for plotting distances and estimating time of arrival. People in finance have ready-made tables for finding the answers to financial problems that they frequently encounter such as compound interest. Most people are successful in their everyday lives without using algebra.

Well then, how about getting into college? We need algebra for that. True, but this is an artificial gate for admittance. It is like the requirement that candidates for officer training, especially flying, be a college graduate. In an interview with an Israeli Air Force general, 60 Minutes reporter, Mike Wallace, discovered that one did not have to be a college graduate to be accepted into the Israeli flight program---a training experience that produces excellent fighter pilots. "Why then," Wallace asked, "does the U.S. Air Force insist upon a college education before a person can enter our flight training?"

"Mike," the general responded, "I don't know. It may be one of those things we assume is necessary, but have no proof one way or the other."

Algebra is a screening device for college entrance much as Latin was a hundred years ago. How can anyone consider themselves educated without Latin? Proof that precollege algebraic skill is essential for success in college is non-existent.

Explanation Number 3 for why students fail

When students ask, "Why do I have to take algebra?" The answer is quasi-religious: "Trust me! You will need algebra  to be successful as a scientist, engineer or doctor. You will need algebra to take college chemistry, physics, and mathematics. Algebra is a must!"

 Merely asserting that algebra is valuable is not enough. This is like a car ride with children in the back seat who keep asking their parents, "Where are we going?" "When will we get there?" You will not quiet the children with, "We are on our way to Saint Louis. We will arrive in five days." The children will want to stop frequently before Saint Louis. Some of their favorite places are the colorful balls in the play area at MacDonalds, and the swimming pool at the motel.

In other words, the teacher's goal is not necessarily the student's goal. The children do not believe there is a place called Saint Louis. The students do not believe that a long mathematical journey with no attractive places along the way is worth the effort.

Well then, what do you recommend?

 I recommend three options we can try. The first is to make algebra an elective rather than a mandatory course for all students. Many students enjoy the intricate pattern- making activity of algebra. These students find the patterns fascinating apart from any synthetic attempt to make the product relevant. They will enjoy the course. Algebra should be declassified from its current status as "something everyone has to know" to "here is another interesting elective you may enjoy along with art, botany, or sports."

But, what about those who "need to know" for work in the physical sciences as chemistry and physics?

The key words here are "need to know." Our model should be the police academy where my son graduated after earning a degree from San Jose State University. Police officers "need to know" a huge chunk of law to be effective in their work. As the candidate progresses through the police academy, they internalize statute after statute on a "need to know" basis. I see a similar strategy in chemistry or physics. As we move through the course, when we "need to know," the mind opens up a window. We seem to understand information in almost one exposure.

But, don't we want our children to be math-literate?

Of course we do. But how are we going to do this? Obviously, our current attempt at "forcing" the information into young learners is not working. Evidence: We spend more on remedial mathematics in America than all other math programs put together.

Now consider this: We have successful electives that attract thousands of students. The names of these courses: Art Appreciation and Music Appreciation. It is time for a new elective called Mathematics Appreciation.

In my new book, The Super School of the 21st Century, I suggest that the content of this new elective should be the dramatic stories of mathematicians. For example, there is intrigue in the story of Bertrand Russell and Alfred North Whitehead who wrote a prize-winning volume to explain why 1 + 1 = 2. How can someone write an entire book on something as obvious as 1 + 1 = 2?

Then there is Rene Descartes, the 15th century French soldier and mathematician, who discovered the "Atlantis" of the mathematical world. For centuries, mathematicians believed there was no connection between geometry and algebra. Descartes felt that his colleagues were wrong. He began to search for the mysterious connection that he believed was there, but invisible.

In his diary, Descartes wrote, " One night when I was in a deep sleep, the Angel of Truth came to me and whispered the secret connection between geometry and algebra." Without this revelation, our world as we know it, would disappear. There would be no architecture, engineering or science. All of our technological, scientific, and medical marvels were discovered because of a visit from Descartes' Angel of Truth. 

Carl Friedrich Gauss, recognized as the Prince of Mathematics, wrote his thoughts in a scientific diary that is now revered as "the most precious document in all mathematics." One of his famous discoveries was to see a hidden pattern in numbers that was invisible to mathematicians for hundreds of years.

We must include in our stories the Michelangelo of science and mathematics, Sir Isaac Newton. He discovered calculus, the composition of white light, and the laws of gravity. Sir Isaac believed that God must make some personal adjustments from time to time to keep planets in their orbit. Most people do not know that Newton conducted secret experiments in alchemy, a capital offense for which people were executed in 18th century England. He was fascinated with the occult, a subject he explored in a million words written in his private notebooks.

 The history of mathematicians will intrigue young people. For example, Laura Nickel and Curt Noll were only 15 years-old when they heard the story of the Chinese mathematician Chen Jin-Run. This person dedicated his professional life to exploring the fundamental theorem of arithmetic that involves prime numbers.

All numbers seem to be composed of certain other numbers called primes. What fascinated Nickel and Noll was the notion that primes are a sort of DNA of all numbers. The two high school students were surprised that no pattern has yet been found to predict the highest prime ever discovered. They set out to find that number. :

Mathematics professors warned them that their project was doomed to failure, but they vowed to prove the experts wrong. After 2,000 hours of work and 44 computer tests, they found the elusive number which was confirmed by theoretical mathematicians at the University of California's Berkeley campus.

If a student is to be wildly passionate about mathematics, the student must have the opportunity to experience the romance of mathematics. Romance comes first. Later comes the skills.

 James J. Asher is the recipient of the Outstanding Professor Award in a faculty of 1,500 Ph.Ds from California's historic first public institution of higher learning, San Jose State University. Both Berkeley and UCLA were branches of San Jose State when they started. His teaching specialty is applied research statistics. This article was excerpted from his books, Brainswitching: Learning on the Right Side of the Brain and The Super School of the 21st Century: Teaching on the Right Side of the Brain published by Sky Oaks Productions, Inc., P.O. Box 1102, Los Gatos, CA 95031.


Brand New! Check out Dr. Asher's fantastic new book, The Weird and Wonderful World of Mathematical Mysteries. This book includes some of the most colorful people in history such as Archimedes, Pythagoras, Euclid, Fermat, Descartes, Cauchy, Goldbach, Newton, and Einstein... who often went for days without eating or sleeping trying to decipher these mysteries--then, the excitement of discovery! You will find out how they used the right side of their brain to make spectacular breakthroughs that dramatically changed our world. Also, Dr. Asher shows how he solved two of the world's most baffling mathematical mysteries! To purchase online visit the catalog.





ALGEBRA

The Keys to Learning Basic Algebra

Convinced that learning basic algebra is far from basic?  These 3 key algebraic concepts will make life a lot easier.

1. Expressions vs Equations--What's the Difference?

Up until the time you reached algebra, the equal sign, =, was probably used as a way of signifying the answer to a problem.  Now that we are growing into higher levels of math, the equal sign will now be used as a way of separating the two sides of an equation.

The easiest way to determine if you have an expression or an equation is by asking yourself this question:  "Does my problem have an equal sign in it?"  If the answer to this question is yes, then you have an equation.  Look, the word equation has the first four letters of the word equal right in it.  *Remember, equations have equal signs, expression don't.*

Examples:

 

Equations (equal sign)

Expressions (no equal sign)

  2x = 123x + 4
  y = 4x - 25x + 2y
  3x + 5y = 158x + 3y + 6

 

2. Simplify Expressions by Combining Like Terms 

Expressions need simplified - we do this by combining like terms.  A "like term" is a number that has the same letter attached to it.

Examples:

To give expressions more meaning, you can give each letter a name.

     Let x stand for x-box (or x-ray, whatever you want...)

Looking back at the first expression above, it should make sense to you that "3 x-box's plus 2 x-box's makes 5 x-box's."

Another Example: 

 

3x + 4y

Is NOT 7x or 7 - leave it as 3x + 4y

 

Let x stand for x-box and y stand for yoohoo

Remember, 3 x-box's and 4 yoohoo's cannot combine!  In terms of math, leave the expression 3x + 4y as it is - you cannot simplify it.

One More Example:

 
 

2x + 3


Each letter is its own group, and can only be combined with other numbers with the same letter.  The plain numbers (2, 5, 13, -8, etc.) are a separate group as well.  You can think of these as dollar bills.


2 x-box's and $3 cannot combine.  Leave 2x + 3 as it is.


* Helpful tip give each lettered group a different color - then combine only numbers that have the same color.  Take a look...


4x + 2y + 5x + 3 + 9y + 10         (original expression)


9x + 11y + 13                  (simplified expression)      


Do not combine the different colors


Do you get it?  Good, you are learning basic algebra! 


3. Solve Equations by Isolating the Variable

Equations have equal signs.  This means that your answer should also have an equal sign in it - like x = 4.  Being able to properly solve equations is essential to learning basic algebra.

The equal sign in an equation separates the two sides of the equation into the left hand side (LHS) and the right hand side (RHS).  Viewing the equal sign as a divider instead of an answer mark is essential to learning basic algebra. 

Example: LHS

 Equal

RHS
4x + 2x

=

10 + 8

6x

=

18

x

=

6

Each side of the equation is actually an expression.  Simplify each expression first if it is possible.  Take a look back at the lesson on combining like terms if you are unsure. 

Once you have combined all like terms, it is time to solve for your variable.  You need to remove everything else by doing the opposite.  In the example above, I got rid of 6 times x, by dividing by 6. 

A more in depth look of how to solve equations is also available if you think you need more help with that key to learning basic algebra.

Hopefully these three key points will help make learning basic algebra easier for you.  You may want to explore some of our free printable math worksheets as a nice way to practice.

 




Thursday, July 3, 2014

EDUCATION: TOO MUCH TOO SOON

Earlier this month the "Too Much, Too Soon" campaign made headlines with a letter calling for a change to the start age for formal learning in schools. Here, one of the signatories, Cambridge researcher David Whitebread, from the Faculty of Education, explains why children may need more time to develop before their formal education begins in earnest.

In England children now start formal schooling, and the formal teaching of literacy and numeracy at the age of four.  A recent letter signed by around 130 early childhood education experts, including myself, published in the Daily Telegraph  (11 Sept 2013) advocated an extension of informal, play-based pre-school provision and a delay to the start of formal ‘schooling’ in England from the current effective start until the age of seven (in line with a number of other European countries who currently have higher levels of academic achievement and child well-being).

This is a brief review of the relevant research evidence which overwhelmingly supports a later start to formal education. This evidence relates to the contribution of playful experiences to children’s development as learners, and the consequences of starting formal learning at the age of four to five years of age

There are several strands of evidence which all point towards the importance of play in young children’s development, and the value of an extended period of playful learning before the start of formal schooling. These arise from anthropological, psychological, neuroscientific and educational studies.  Anthropological studies of children’s play in extant hunter-gatherer societies, and evolutionary psychology studies of play in the young of other mammalian species, have identified play as an adaptation which evolved in early human social groups. It enabled humans to become powerful learners and problem-solvers. Neuroscientific studies have shown that playful activity leads to synaptic growth, particularly in the frontal cortex, the part of the brain responsible for all the uniquely human higher mental functions.

In my own area of experimental and developmental psychology, studies have also consistently demonstrated the superior learning and motivation arising from playful, as opposed to instructional, approaches to learning in children. Pretence play supports children’s early development of symbolic representational skills, including those of literacy, more powerfully than direct instruction. Physical, constructional and social play supports children in developing their skills of intellectual and emotional ‘self-regulation’, skills which have been shown to be crucial in early learning and development. Perhaps most worrying, a number of studies have documented the loss of play opportunities for children over the second half of the 20th century and demonstrated a clear link with increased indicators of stress and mental health problems.

Within educational research, a number of longitudinal studies have demonstrated superior academic, motivational and well-being outcomes for children who had attended child-initiated, play-based pre-school programmes. One particular study of 3,000 children across England, funded by the Department for Education themselves, showed that an extended period of high quality, play-based pre-school education was of particular advantage to children from disadvantaged households.

Studies have compared groups of children in New Zealand who started formal literacy lessons at ages 5 and 7. Their results show that the early introduction of formal learning approaches to literacy does not improve children’s reading development, and may be damaging. By the age of 11 there was no difference in reading ability level between the two groups, but the children who started at 5 developed less positive attitudes to reading, and showed poorer text comprehension than those children who had started later. In a separate study of reading achievement in 15 year olds across 55 countries, researchers showed that there was no significant association between reading achievement and school entry age.

This body of evidence raises important and serious questions concerning the direction of travel of early childhood education policy currently in England. In the interests of children’s academic achievements and their emotional well-being, the UK government should take this evidence seriously.

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