Minggu, 14 Desember 2008

What I Can Reflect About Psychological Aspects

What I can reflect about Psychological aspects if the students is confronted with the following question:

Selesaikan pertidaksamaan linier dengan himpunan semesta R berikut!
1. 3x+4 0
2. 2x-3 > 5
3. 3x+4 -2x+7
4. (2x-5)/3<-(5/2)
5. (2x-3)/5< (x/2)+1
6. 3x-1 < x+5 2x+3

Many kinds of different expressions come along from one student with others.
Several of expressions when they receive the question above are,,
- underestimate
- ordinary
- enthusiasm
- some of them belief that the question above is challenge
- sluggish
- etc
The are many reason why student’s anticipate or student’s expression with the question is looks like draft above. Student who take charge or dominate in class because her / his ability in material or in mathematics especially in non equation linier that given by the teacher, he / she will do it feelingly. Because he / she has no feeling, to can’t do the question well.
In this discussion we can call those student: Student A
The question had given by the teacher, student A may be put the advantages or the gap from those question. Berbeda dengan siswa lain, student A have a kind of suspicion that the question above can be one of media, way, exercise to sharpen their ability on it.
Student who lack of enthusiasm for the mathematics, especially in non equation linear, we call them: Student B
Student B may be give a negative respons if they confronted with the question above. They will do the exercise imperfect if they compared with student A. Student B have a bad willingness to do the question. Moreover they have a suspicion that the exercise is a big problem in their life.
Oh my God!
So, what should we do?
What should we do as a candidate good teacher, especially as a Mathematics Teacher………………

Hmm, next time I’ll continue my opinion about this.


MAR’ATUL K
PENDIDIKAN MATEMATIKA R 07
07301241041
085643083151

Selasa, 02 Desember 2008

Study Student's Understanding on Mathematics by Using Sampling Methods

Sampling is that part of statistical practice concerned with the selection of individual observations intended to yield some knowledge about a population of concern, especially for the purposes of statisticasl inference Each observation measures one or more properties (weight, location, etc.) of an observable entity enumerated to distinguish objects or individuals. Survey weights often need to be applied to the data to adjust for the sample design. Results from probability theory and statistical theory are employed to guide practice.

In mathematics education, we can use sampling methods to know how far student's ability in Mathematics.
Using sampling methods we can observe kind of students style learning Mathematics in class, we can study student's understanding on Mathematics.
Sampling Methods was used to infer students’ attitudes to, and beliefs about a range of daily activities, including those related to their (mathematical) studies.

Wonders of Allah in Social System of Ants

Ants live in colonies and a perfect division of labor exists amongst them. When we take a closer look at their systems, we shall also see that they have a pretty interesting social structure. It will also come to our attention that they are capable of sacrifice at a much higher level than humans are. One of the most interesting points is that - compared to humans - they do not know the concepts such as the rich-poor discrimination and the fight for power that are observed in our societies.

Many scientists, who for years have been doing extensive research on ants, have not been able to clarify the subject of their advanced social behavior. Caryle P. Haskins, Ph.D., the president of the Carnegie Institute at Washington has this to say:

After 60 years of observation and study, I still marvel at how sophisticated the ants' social behavior is. …The ants thus make a beautiful model for our use in studying the roots of animal behavior. (National Geographic, vol.165, no.6, p. 775)

Some colonies of ants are so extensive with respect to population and living area, that it is impossible to explain how they can form a perfect order over such a vast area. Therefore, it is not easy not to concur with Dr. Haskins.

As an example of these large colonies we can give the species of ant, called Formica Yessensis that lives on the Ishikari coast of Hokkaido. This ant colony lives in 45,000 interconnected nests over an area of 2.7 square kilometers. The colony, which is composed of approximately 1,080,000 queens and 306,000,000 workers, has been named the "Super colony" by the researchers. (Bert Hölldobler-Edward O.Wilson, The Ants, Harvard University Press, 1990, p. 1.) It has been discovered that all production tools and food are exchanged in an orderly fashion within the colony.

It is very hard to explain how the ants have maintained this order without any problems, considering the vast area they are living in. We must not forget that various security forces are needed for enforcing law and maintaining social order, even in a civilized country with a low population density. And there is an administrative staff leading and managing these units. Sometimes, it does not become possible to maintain the required order without problems despite all these intense efforts.

Yet in ant colonies there is no need felt for police, gendarmerie or guards. If we consider that actually the duty of the queens, whom we think of as the leaders of the colonies, is just to maintain the species, they do not have a leader or a governor. There is thus no hierarchy based on a chain of command amongst them. Then who is it that lays down this order and maintains its continuity?

The fact that ants can establish such a great and perfect order is proof that they are acting on the inspiration of a certain "supervisor". The verse below fully confirms that God is the master and supervisor of everything and that every living creature acts on His inspiration:

I have put my trust in God, my Lord and your Lord. There is no living being He does not hold by the forelock and inspect! My Lord is on a straight path. (Surah Hud: 56)