Mathematics philosophy in daily life

Many people is confusing the importance of mathematics in daily life. Many people is questioning mathematics benefit in daily life. For example logarithm. Is logarithm benefit for daily life? Is important logarithm applied for daily life? In contextual possibly will very difficult to apply mathematics. Not all matters in mathematics can be studied in contextual. But, the essential in mathematics is not merely formula and calculation only, but logic. People who is clever calculated hence he/she is arithmetic clever, on the contrary people who clever of mathematics hence he/she will apply the natural existence and logic to finalize various problems.
In a Russian film, I forget its title, there is one beautiful words about mathematics that is more or less like following: " very tightly mathematics the relation with life. In mathematics, there is many problems which must be done that we to get of best of matter. When doing problem hence would many formulas is earning we to apply. Formula which many the earned easier of we learn by heart if we can get his own. More and more the problem of which we done hence we would increasingly trains and masters matter. While in daily life, many problems which we would face, but the many the problems pushes we to apply formula or way of finalizing various the problems. More and more problem which we face will push we to think more adult in finalizing various problems."
Means mathematics learning is not merely formulas which many, hard problems, complicated calculation, fierce teacher, matter which is difficult is studied, etc but how we develop our way of thinking so that when given on to a problem we can apply natural existence and logic we to finalize the problem. Mathematics hardly good for human life, either directly and also indirect. Usefulness directly for example when we go shopping and does transaction of trade or business, where as indirect usefulness is when we cook water which actually without we realize we have done activity of mathematics especially calculus.

What I can reflect about psichological aspect, if the student is confronted with the following question.

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)

When student is confronted with those questions will show many psichological aspect. Psichological aspect emerging will differ in each people.
Feeling student likes with inequality matter would hardly liking when teacher to give the queations. He/She will motivated when doing the questions. The student possibly will can finalize the questions quickly. After completed doing the possible questions of he/she will feel the less questions many and can terminate with happy laugh.
Student which fairly not likes inequality matter to eat he/she would be lazy when receiving the questions. When he/she commanded to do it, the student would hardly perforced to execute it. Particularly questionss given very difficult and haves no he/she to finalize correctly, he/she becoming confused and would increasingly unable to zeal for finalizes it. When he/she completed doing he/she would very easy because his/her feel unhappy ends, and hoped the teacher didn't give conspecific questions again.
Student preferring discourse learning method will feel giving of the problem of that very drags on. The student might possibly will fulminate and confuses when having to does the questions. Student frowning upon giving method of questions would like this will feel is lackluster to follow Iesson.
Resistance emerging when teacher gives the questions for example student cannot do the questions, good of that is because matter has not been given or student has not understood with matter which has been given; feels slack owned by student will pursue student to follow Iesson or works for finalizes the questions; student which has felt possibility can will look down to the problems because assumed easy.
Supplementary factor that student can finalize the problem of the inequalities for example teacher gives the matter is beforehand, then teacher gives motivation of student to be able to finalize the questions. After teacher gives matter hence student will sharpen they skill through questions given by teacher. Student will try does the questions by the way of guessing, trial and errors, or asks to friend who has can finalize the questions. Teacher can motivate student by the way of giving point at student capable to finalize problems correctly.

Econometrics

Econometrics is science including the economic theory, mathematics, and statistician in one pools of circular system, becomes a different and independent science with economics, mathematics, and also statistics.

Beginning of econometrics development introduced by Vilferdo Pareto having contribution in explaining shelf distribution of individual earnings and choice passed mathematical approach based on to the economic theory. Then in its development, econometrics becomes branch itself in economics. Jan Tinbergen is one of main character in science expansion.

Econometrics is applied as a means of economic analysis with aim to test truth of theorems the economic theory which in the form of the relation between economic variable with empiric data. Having the character of apriori theorems at economics expressed beforehand in the form of mathematics (conceived of model) causing can be done testing to the theorems. Making of econometrics model is one of contribution econometrics besides prediction making (forecasting) and making various decisions of alternative having the character of quantitative causing can water down the decision takers to take choice.

Based on data applied, econometrics is divided to become three analysis, that are:

1. Time series analysis, explains about behavior of a variable along the length of some times successively,

2. Cross section, explains between some areas in one certain time (snapshot), and

3. Panel data analysis, merges between time series analysis with cross section.

Benefit from approach of econometrics is as follows:

1. Verification, as a means of proved or tests validity the economic theory. A defensible theory if have been through empiric testing, and econometrics assists to do testing of the empiric.

2. Estimating, to yield economic relation coefficients valuations. The valuation is benefit to decision making.

3. Forecasting, to forecast economic magnitudes which will come.

Econometrics applied as one of equipment of test in journal writing, thesis, dissertation, and script material. In practice, econometrics applied to do planning and economy policy analysis, and optimal of company performance in corporate world.