PARALLEL AND PERPENDICULAR LINES

You may have heard about a train bound for Bicol that was derailed from its path. The accident happened because some parts of its railroad were stolen or dislocated, and it claimed so many lives, including those of children.

Buildings are designed to be perpendicular to the horizontal ground so that the gravitational pull will be directed perpendicularly to the ground. On the other hand, the railroad of a train is designed to form a pair of parallel lines. These are some important designs that use the concepts of perpendicular and parallel lines.

Share what you know about parallel lines and perpendicular lines.

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THE MAGICAL MYTH OF NUMBER 7

Seven has always been considered a special number. To the Egyptians, for example, the Earth was represented by a four-sided house in which three Gods dwelled, which added up to seven. This became their lucky number.


Seven really came into its own with the Christian interpretation of Creation:
          The world was made in seven days.
          There are seven days a week.
          There are seven graces.
          There are seven stanzas in the Lord's Prayer.
          There are seven ages of man.
          Christ uttered seven last words.


Most of the above beliefs are ruled by the different phases of the moon, which change every seven days.

The Romans believed that the mind and the body changed completely and were renewed after seven years. They also started the seven year's bad luck concept.


Seventh-Heaven is an Islamic concept, and it represents the best of all possible places. It is the heaven of heavens, the residence of God and his angels. There is also a very early Islamic belief that there are seven heavens, one lying right above the other, graduating in degrees; depending upon how good a person was on Earth, he or she could say, "I'm in Seventh-Heaven."


Seven is especially lucky for gamblers.



The seventh son born to the seventh son is thought to be doubly blessed. He is believed to be a clairvoyant, with natural healing powers. Throughout the Middle Ages, the seventh son usually practiced magic and administered the laying on of hands to the sick.

(Ymas et.al. 2002)

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What makes Mathematics beautiful?

Its language – clear and concise;

its discipline – profound and alive;

its usefulness – diverse and practical;

and its continuous contribution

to the unraveling and understanding

of life’s mysteries.

For mathematics to be appreciated, one has to see beyond the ideas,

concepts and skills presented in the confines of the classroom.

It has to be made real, relevant, tangible and enjoyable at the same time.

And how do we do these?

We can only do so by presenting our learners all the possible different

connections and applications Mathematics has.

(Blanco, 2005)

 This is what the Learning Activities aim to achieve-

To show how Mathematics can be made alive in its simplicity.

To supplement and deepen the classroom instruction,

various activities that the teacher and students

may enjoy and find meaning in are presented.

It is hoped that teachers get use of the activity

that will inspire students to get a glimpse

of the importance of Mathematics.

NUMBER ODDITY

Make a number of all the digits 1 to 9 leaving out 8 : 12 345 679
Now, multiply it first by any single-digit numbers : (say for instance 5)  12 345 679 x 5 = 61 728 395
Multiply the product by 9. 61 728 395 x 9 = 555 555 555

YOU SHOULD GET YOUR SINGLE-DIGIT BACK NINE FOLD.

LUCKY 9

Think any number. Say 123456
Reverse the Order of the Digits. Gives us 654321
Subtract the Lesser from the Greater Number. 654 321 - 123 456 = 530 865
Now, add up the sum of the digits in the remainder. 5 + 3 + 0 + 8 + 6 + 5 = 9.

Try other numbers.

You will find out that no matter what number you choose,
THE ANSWER WILL ALWAYS BE 9!