The Rubik's Cube is named after its inventor, Erno Rubik.
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Learning Math From the Rubik’s Cube (by Jennifer Lee)
Can a Rubik’s Cube boost student confidence?
About a dozen New York City schools have introduced a child-friendly
Rubik’s Cube-based math curriculum devised for students as young as 8.(Read more of the article at http://cityroom.blogs.nytimes.com/2009/11/16/learning-math-from-the-rubiks-cube/)
BLOCK MODEL APPROACH IN SOLVING WORD PROBLEMS
The Block Model Approach was introduced in 1983. In the present, the method remains a powerful problem-solving tool to solve many challenging arithmetic word problems. Mathematical models help pupils gain concrete experiences which are pre-requisites for understanding abstract symbols of mathematics and their manipulation (Kho, 1982).
Watch the sample video created by www.mathplayground.com.
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Watch the sample video created by www.mathplayground.com.
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MATHEMATICS & ALICE'S ADVENTURES IN WONDERLAND
Alice's Adventures in wonderland, written by Lewis Carroll, is recognized by almost everyone as a classic in children's literature. What many are are surprised to learn is that Carroll was a professor of Mathematics, whose real name was Charles Lutwidge Dodgson. Dodgson used his real name only when writing on mathematical topics and his pen name when writing children's literature.
One of the unique qualities of Alice's Adventures in Wonderland is its appeal to children and adults as well. For decades, mathematicians and logicians have tried to look beyond what appears to be children's nonsense and find a logical meaning in much of it. Some believed that Alice's Adventures in Wonderland is full of symbolic logic, a topic on which Carroll often wrote as a mathematician. An example of this can be found in the story when Alice says, "Let me see: four times five is twelve, and four times six is thirteen, and four times seven is-oh dear! I shall never get to twenty at that rate!"
Mathematicians propose different explanations for this passage, such as the use of bases other than base 10. Perhaps the simplest explanation is that the multiplication table traditionally stops at 12. If you continue the nonsense progression, 4x5=12, 4x6=13, 4x7=14, and so on, you will end with 4x12=19, which is one short of 20. So Alice's fear that she will never get to twenty may be well-founded.
~Chua, Simon L. et.al., 2005
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One of the unique qualities of Alice's Adventures in Wonderland is its appeal to children and adults as well. For decades, mathematicians and logicians have tried to look beyond what appears to be children's nonsense and find a logical meaning in much of it. Some believed that Alice's Adventures in Wonderland is full of symbolic logic, a topic on which Carroll often wrote as a mathematician. An example of this can be found in the story when Alice says, "Let me see: four times five is twelve, and four times six is thirteen, and four times seven is-oh dear! I shall never get to twenty at that rate!"
Mathematicians propose different explanations for this passage, such as the use of bases other than base 10. Perhaps the simplest explanation is that the multiplication table traditionally stops at 12. If you continue the nonsense progression, 4x5=12, 4x6=13, 4x7=14, and so on, you will end with 4x12=19, which is one short of 20. So Alice's fear that she will never get to twenty may be well-founded.
~Chua, Simon L. et.al., 2005
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SMARTER WAY to multiply numbers close to 10
http://www.glad2teach.co.uk/fast_maths_calculation_tricks.htm
PLATEAU & DEPRESSION PRIMES
Plateau primes are palindromic prime where all the interior digits are alike and smaller matching end digits. Examples are 1777771 and 355555553.
Depression Primes are palindromic prime where all the interior digits are alike and have larger matching end digits. Examples are 322222223 and 722222227.
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THE STORY OF 1729
When Srinivasa Ramanujan, the great Indian mathematician was ill with tuberculosis in a London hospital, his colleague G.H. Hardy went to visit him. Hardy, trying to initiate conversation, said to Ramanujan, "I came in taxi-cab number 1729. That number seems dull to me which I hope isn't a bad omen."
"Nonsense," replied Ramanujan. "The number isn't dull at all. It's quite interesting. It's the smallest number that can be expressed as the sum of two cubes in two different ways." (Ramanujan recognized that 1729 = 1^3 + 12^3 as well as 9^3 + 10^3).
http://mathworld.wolfram.com/Hardy-RamanujanNumber.html
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"Nonsense," replied Ramanujan. "The number isn't dull at all. It's quite interesting. It's the smallest number that can be expressed as the sum of two cubes in two different ways." (Ramanujan recognized that 1729 = 1^3 + 12^3 as well as 9^3 + 10^3).
http://mathworld.wolfram.com/Hardy-RamanujanNumber.html
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THE MAGIC NUMBER IN YOUR NAME
A-1 B-2 C-3 D-4 E-5 F-6 G-7 H-8 I-9 J-1 K-2 L-3 M-4 N-5 O-6 P-7 Q-8 R-9 S-1 T-2 U-3 V-4 W-5 X-6 Y-7 Z-8
People who lived during the ancient times believed that there was a kind of magic in numbers. They thought that numbers could tell about the future and many other things. So, they worked out what they thought were in magic ways to tell them what these numbers mean.
How would you like to know your "magic number" and what it is supposed to tell you about yourself? Here's how to do it.
Use the number assignment for each letter of the alphabet:
C L A R I S A E L L A
3+3+1+9+9+1+1 5+3+3+1
27 + 12 = 39
Now, add up all the resultant numbers per name and then, per whole name. If your get a number from one to nine, that's your "magic number." If you get a number that is higher that nine, you must add up the numbers.
For example, Clarisa Ella's numbers add up to 39. When she adds 3 and 9, she gets 12. So, she adds the 1 and 0 from her 12, and gets 3. That's her magic number.
When you know your "magic number", look at the list to find out the kind of person are. Ofcourse, numbers can't really tell you about yourself-but it's fun to pretend that there is "magic number".
1 - You are sure of yourself, make friends easily, and like to keep yourself busy.
2 - You are quiet, rather shy, but can work easily with others
3 - You are clever, artistic, sociable.
4 - You are hardworking and dependable. You do not change your mind easily.
5 - You are smart, active and adventurous, but you lose your temper easily.
6 - You are fair, unselfish, and careful of other people's feelings. You like to keep things neat and organized.
7 - You like to be by yourself and you don't like to do what everyone else is doing . Yout think things out very carefully.
8 - You like to plan things out and to make sure you are right. You are kindhearted and people know they can trust you.
9 - You like people and you believe strongly in freedom. You are a clear thinker.
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People who lived during the ancient times believed that there was a kind of magic in numbers. They thought that numbers could tell about the future and many other things. So, they worked out what they thought were in magic ways to tell them what these numbers mean.
How would you like to know your "magic number" and what it is supposed to tell you about yourself? Here's how to do it.
Use the number assignment for each letter of the alphabet:
C L A R I S A E L L A
3+3+1+9+9+1+1 5+3+3+1
27 + 12 = 39
Now, add up all the resultant numbers per name and then, per whole name. If your get a number from one to nine, that's your "magic number." If you get a number that is higher that nine, you must add up the numbers.
For example, Clarisa Ella's numbers add up to 39. When she adds 3 and 9, she gets 12. So, she adds the 1 and 0 from her 12, and gets 3. That's her magic number.
When you know your "magic number", look at the list to find out the kind of person are. Ofcourse, numbers can't really tell you about yourself-but it's fun to pretend that there is "magic number".
1 - You are sure of yourself, make friends easily, and like to keep yourself busy.
2 - You are quiet, rather shy, but can work easily with others
3 - You are clever, artistic, sociable.
4 - You are hardworking and dependable. You do not change your mind easily.
5 - You are smart, active and adventurous, but you lose your temper easily.
6 - You are fair, unselfish, and careful of other people's feelings. You like to keep things neat and organized.
7 - You like to be by yourself and you don't like to do what everyone else is doing . Yout think things out very carefully.
8 - You like to plan things out and to make sure you are right. You are kindhearted and people know they can trust you.
9 - You like people and you believe strongly in freedom. You are a clear thinker.
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