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# Mathematics

## Free NAT High School Math Reviewer

This **Free NAT High School Math Reviewer** is for the **National Achievement Test**--an annual examination given to Grade sixth and tenth students in the Philippines.

The students' knowledge and mastery over the subjects English, Mathematics, Science, Filipino, and Hekasi is measured using a multiple choice type of test. The examination is administered by the Department of Education's National Educational Testing and Research Center (NETRC).

This National Achievement Test (NAT) reviewer focuses on Mathematics or Math.

This reviewer is a not an official product of DepEd, CHED, or any institution. This is a contribution of the following persons (see OurHappySchool.com Disclaimer):

*Corina L. Palmon*

*Sarah B. Tan*

*Jomalyn J. Abar*

*Ma. Clarissa S. Ramos*

*Meinrad Allan Quismundo*

*Rhea B. Alarte*

## Free UPCAT Math Reviewer

This **Free UPCAT Math Reviewer** is for the University of the Philippines College Admission Test, commonly known as UPCAT -- a part of the admission requirements of the University of the Philippines, administered to graduates of Philippines and foreign high schools.

This reviewer is about Mathematics. It covers **Algebra, Geometry, Trigonometry, Statistics, **and** Calculus**.

This reviewer is not an official product of DepEd, CHED, or any institution. This is a contribution of the following persons (see OurHappySchool.com Disclaimer):

*Mateo, Pamela Mari L.*

*Sy, Mary Joy C.*

*Holgado, Jonas M.*

*Romero, Lourdes M.*

*Sanchez, Andrea C.*

## Free UPCAT Mathematics Reviewer

This **Free UPCAT Mathematics Reviewer** is for the **University of the Philippines College Admission Test (UPCAT)** -- a part of the admission requirements of the University of the Philippines. The UPCAT consists of 4 subtests: Language Proficiency, Science, Mathematics, and Reading Comprehension.

**Mathematics** is a very challenging subject which enhances our mental abilities and it also needs to be practiced. It is interesting to solve problems which are easy. To solve difficult problems, however, seems to be a harder task. But being able to solve Math problems produces excitement and satisfaction. Mathematics can be used to explain and control natural happenings and situations.

This UPCAT reviewer will help you review your Math subject particularly in **Algebra, Geometry **and also** Word Problems**. We used method which is not boring but interesting. It will help you as you can use it anytime you want.

## Free NAT Grade 6 Math Reviewer

This **Free NAT Grade 6 Math Reviewer** is for the National Achievement Test (NAT) -- an annual examination given to both elementary and high school students in the Philippines.

It designed to measure the students' ability of certain subjects. In this test we can see the strengths and weaknesses of every student.

We made this reviewer to help you with your difficulty in reviewing Mathematics subject.

It covers topics in Math like **percentage, f****raction, decimal, and metric measurement**.

## Mathematics and Its Reality

**Mathematics** is the abstract study of topics such as quantity (numbers), structure, space, and change. There is a range of views among mathematicians and philosophers as to the exact scope and definition of mathematics. (Wikipedia)

Mathematics is not an invention. Discoveries and laws of science are not considered inventions. Inventions are material things and processes. However, there is a history of mathematics, a relationship between mathematics and inventions, and mathematical instruments are considered inventions.

According to *Mathematical Thought from Ancient to Modern Times*, mathematics as an organized science did not exist before the classical Greeks of the period from 600 to 300 BC entered upon the scene. There were, however, prior civilizations in which the beginnings or rudiments of mathematics were created.

When civilization began to trade, a need to count was created. When humans traded goods, they needed a way to count the goods and to calculate the cost of those goods. The very first device for counting numbers was the human hand, counting on fingers. To count beyond ten fingers, mankind used natural markers, rocks or shells. From that point, counting boards and the abacus were invented. (inventors.about.com)

## Free Automated E-Learning UPCAT Math Reviewer

The **University of the Philippines College Admission Test**, commonly known as **UPCAT**, is part of the admission requirements of the University of the Philippines, administered to graduates of Philippine and foreign high schools.

This reviewer covers the following topics: Trigonometry, Algebra, Geometry and Calculus. This is not an official product of DepEd or Ched. It will provide students and their parents an additional source of timely and relevant information.

*Nabing, Mary Ann R.*

*De los Santos, Kimberly D.*

*Jomalie P. Ramos*

*Barnedo, John Paul G.*

*Pangan, Mharjhon A.*

## Learn Algebra in a Fun Way

Many find ALGEBRA hard. The subject may indeed be, but there are now ways to learn it in engaging ways.

Try this e-learning quiz game: Learn Algebra in a Fun Way. Have fun!

## A Geometry Fun Quiz Game

ENCARTA DICTIONARY defines Geometry as "mathematics of shapes: the branch of mathematics that is concerned with the properties and relationships of points, lines, angles, curves, surfaces, and solids."

Take this 'A Geometry Fun Quiz Game' to learn about the subject in an exciting way. Have Fun!

## A Lesson in Probability

Sample Space (S) – set of all possible outcomes of a statistical experiment.

Example: When a coin is tossed.

Sample points – elements or members of the sample.

Statement or rule – description of sample space with infinite number of sample points or large number of sample points.

Example: S = {(x , y)/ x^{2} + y^{2} = 4}, S is a set of all points (x, y) such that these points are on the boundary or interior of circle whose radius is 4 and with center at the origin.

Event – subset of the sample space

## Love or Hate Math? <3

As years pass, people, animals, plants, and things are getting old. Sometimes we didn’t even notice it. Many new things are being innovated and improved. But did you ever imagine that there is one method that’s not getting old?-----MATHEMATICS

Well, we didn’t even know how useful this method is in our daily life. Here are some TIPS that might help in loving and appreciating Math.