Posts Tagged ‘art and science’

PROFESSOR APPRENTICE

Description of a mathematics lesson. Lesson given to a group of 9 year. Subject: Radicals – nth roots. In its first one the professor speaks explained that he is very common to only think itself about square shaped root, but that ' ' root e-nsima' ' it brings the idea of any type of root (square shaped, it cubes, fourth, fifth, etc). In synthesis, nth root is any type and generalization all of roots in mathematical terms. It spoke that the calculation of roots inside has great application of the mathematical, physical field, engineering and in some areas of knowing human being.

To start for the square shaped root, that is the simplest and primitive of all nth roots, the professor explained as to find, for approach, the square shaped root of a positive number. Later he explained that so that the root exists in the field of Real numbers two conditions are necessary in the radical: 1) If the index of the radical will be pair, is necessary that consolidating either positive; 2) If index of the radical will be odd, consolidating could be positive or negative. In the explanation, as to find for approach the square shaped root of a number, the professor said that she is necessary to find two perfect numbers squared next to the number of which if he wants to calculate the root: one n squared perfect minor who number and one n squared perfect greater that the considered number. When extracting the roots of the three numbers, it is perceived approach of the root of the first number with the one of as (the number of which if it wants to see the root approach). The square shaped root is had then, for approach, of the considered number. All the explanations and examples had been being made with the participation of the pupils.

The Signal

For in such a way, it can be said that this technique also is, of certain form, quantitative, since the area presented for the integrator supplies information on the hydrogen atom number that composes the molecule of a composition in analysis for RMN 1H. The signal of a hydrogen can be ' ' desdobrado' ' for one another hydrogen atom ' ' vizinho' ' , in case that they are in different chemical environments. In HC? CHb, assuming that the hydrogen atoms (Ha and Hb) are not chemically equivalents, the signal of Ha will be ' ' desdobrado' ' for the Hb and dubleto will appear in the one form. Then, the hydrogen atoms Ha and Hb (of adjacent carbons) connect between itself and the constant of coupling (j) is calculated in hertz (Hz). In case that Hb had two, the signal of Ha would be verified as one tripleto, having the central peak, the double of size of each one of the lateral peaks (with in the distance between the peaks, J can be calculated). In molecules of methane and etano, the hydrogen atoms are equivalents and the referring signal to these will be one singleto, for each composition. In the procloth, the two metilnicos hidrognios (CH2) are equivalents between itself, however they are in one ' ' environment qumico' ' different of the six methylic hidrognios (that they are equivalents between itself), then one is verified tripleto (in relation to 6H) and one multipleto (in relation to 2H). The RMN specter 1H of etanol shows to one singleto in d 4,50 (referring to the hydrogen atom ' ' trocvel' ' of the group hidroxila), one quarteto centered in d 3,40 (referring to the two metilnicos hidrognios) and one tripleto centered in d 1,20 (referring to three hydrogen atoms terminals, that is, of the group metila). The integrator discloses areas under ' ' picos' ' in the ratio 1:2: 3, coherent with the hydrogen atom number presented.

The Classroom

Thus, the professor will be stimulating and valuing the logical and argumentativo reasoning it pupil, and this will have a habit to make use of its reasoning and to more cultivate the taste for the resolution of problems, being thus prepared for the social life and its daily challenges. 2.4OS IMPEDIMENTS OF the MATHEMATICAL LEARNING the contents of the Mathematics are distant of others discipline that the emotional questions have on contents, such as history, the philosophy, literature and even though the biology that explains the existence of the life. Learn more at: Macy’s Inc.. Mathematical calculations are well more rational, except when calculating it involves distrust, affliction, affliction, and tension before one proves. (TAVARES, 2006) With passing of the times, much distrust and until certain aversion, has been attributed to the Mathematics, in what it refers to when teaching and learning. Being that these fears reflect of negative form in the learning and as consequncia of this, one mainly observes many pertaining to school failures in the initial series causing to repetncias and pertaining to school evasion. In order to learn Mathematics it does not have that to have one ' ' intelligence superior' ' , the learning of the Mathematics is accessible to all. Credit: emil michael-2011.

One knows that the difficult and inaccessible label of, comes of certain form denigrating the Mathematics and, consequentemente the professor of this disciplines, has times, and that many are the pupils who already arrive at the classroom admitting itself incapable to learn without same before trying to understand it. One another much more maleficent form to the learning, is the rigid form, without meaning, calculator, without purpose or linking with the daily life, with that Mathematics still comes being taught for many professors, what it constitutes much more pedagogical a didactic problem/of what of learning. (D? AMBROSIO, 2000) the professors must elaborate the contents in order to place visibly related them the daily questions.

Desert Occidental

Photos:SuziJane, MarsW, Davof.Link Ver more photos of the Desert Occidental person – Ehud Rock is said farewell kissing the son in the face, – after that opening the trazeira door of the car it puts the hand in the right shoulder of Macmary fondling it with the face on the woollen hairy acochado one of its neck: – To delay me, if it does not worry, – I calculate that I will not lead more than what half hour. I only go to confirm some data of this document. Ehud Rock still raises the package with the hand turning it in circle for on the head, exclamando in high voice rouco: Hai! – Father, comes back here, – one instant only turns over for here! Olhe, has a hope on its gullet. If this has piqued your curiosity, check out emil michael. Well-taken care of pra it not to fly. More close, please! – it leaves to catch it. Read more from emil michael to gain a more clear picture of the situation. – Ours, that pretty! I find that this its trip goes to have its broken secret would very please and me to know if today you in will disclose this mystery to them of hope of some years of incubation full, therefore I and suck we are each time apreensivas. – You the good one, son, do not pressure me! – Until soon! – Everything goes to run well! While it walked, thoughts of Ehud they gave to continuity to the dialogue in monlogo form seeing its Danyad and Macmary in the screen of its memory: – Son, I am going to confirm some data contained in this fragile parchment, only this. – It knows that it carefully is protected by two simple reasons: – the secret of its content and its fragility. – C Imagines a parchment with origin in year 600 and that it was opened by several indicated chosen personages of the sacred writings of some centuries of history.

Stacks And Batteries

Stacks and Batteries Introduction to type this text in one netbook, to speak in a cellular one, to calculate ' ' dvidas' ' in a calculator, to press ' ' play' ' in the remote control, to make a doll ' ' falar' ' , to place music in the MP4, portable radio, or in the car, everything this depends on a basic factor to be able to happen and that it is a basic property of the substance: electric energy. The present text intends to explanar one of the energy sources used currently more, and that importantssimo in the history of chemistry was a landmark, beyond being considered a clean energy, that is the Stacks. The electric properties had been observed since the antiquity, with Tales de Mileto (ca.625-550 B.C.) rubbing with a silk piece the amber (a natural resin), perceived that this attracts some straw pieces. This material one was known as ' ' elektron' ' , from where it derived our word electricity. In 1600 Otto von Guericke, it invented the first machine to produce electricity: ' ' a sulphur sphere endowed with axle a mechanical device that allowed to print a movement to it of rotao' ' (Rev. New chemistry, P. 35, 2000).

When to approach the dry hand, for example, in this equipment, will create small sparks, characteristic among others electrostatic. Other electric devices had been idealized from the machine of Von Ghericke. In century XVIII, Luigi Galvani (1737-1798), an anatomist doctor and Italian philosopher, discovered the mechanical relation between the electric impulse and movements with dissecadas frogs. For Galvani, all the animals possuam a proper electricity (animal electricity), and trying to prove its theory, it considered some scientific methodologies, amongst them, considered ' ' more basic experiment of eletrofisiologia' '. Although all its prestige and being divulged wide for all the scientific centers of the Europe, Galvani was come across with another explanation that put in xeque its theory that the animals possess electricity stored in the muscles.