DISCUSSION

National Exam in Pros and Cons

National exam becomes the hot topic in most of discussions. Though the Supreme Court has rejected an appeal by the go-vernment on the organization of the national exams, the controversy over whether it is necessary to maintain the national exams (UN) has continued. Some debates include the primary questions such as; does the quality of Indonesia education depend on the national exam?, will the quality of the Indonesian education system worsen without natipnal exam?

People, who support the national exam explain that the quality of the Indonesia education system will drop without the national exam, so they try to defend the current system.

However there are people who disagree with the opinion. Those who against this national exam kept in our high school education say that it doesn't need the national exams because the quality of education does not just depend on the national exam. Further, the national exam only measures a small portion of students' competence in specific subjects, and does not measure students' competences throughout the semester.

In fact, the national examination can still be useful as an instrument to evaluate or detect the level of students' cognitive competence in several subjects, on a national scale.

The Source : http://understandingtext.blogspot.com/2009/12/national-exam-in-pros-and-cons.html

EXPLANATION

How Cell Phones Work

A cell phone is a great gadget in this modern world. What is a cell phone? A cell phone is actually a radio in certain way. Like a radio, by a cell phone we can communicate to other people in real time. Million people use cell phone for their communication. Even nowadays, people use cell phones to communicate in voice, written and data. Alexander Graham Bell is the person who make great change in the way people communicate to each other. He invented a telephone in 1876. While wireless radio was formally known in 18994 presented by Guglielmo Marconi. By these two technologies, then a cell phone was born. However do you know how actually cell phones work?
This short explanation on how a cell phone work is really wonderful. A cell phone or in long term "cellular telephone' works by transmitting signals of radio to towers of cellular. The towers are networked to a central switching station. The connection usually uses wire, fiber optic-cables, or microwave.
Then the central switching station which handles calls in certain given area is directed connected to the wire-based telephone system. Cellulars are pick up by the towers and relayed to another cellular telephone user or the user of wire-based telephone network.
the towers vary in the capacity and capability to receive signals. Some can receive the signal from short distance and the others can receive more distance. However, there are usually more than one tower in certain given area so that the system can handle the increasing telephone traffic.

The Source : http://understandingtext.blogspot.com/2009/12/explanation-text-about-how-cell-phones.html