Published at Saturday, September 05th 2020. by Damiana Fernandez in математика класс.
Vo-pervykh, sovershenno yestestvenno imet problemy so snom v noch pered vazhnym dnem, i vypusknoy ekzamen po matematike yavlyayetsya imenno to, chto ochen vazhno dlya uspekha v zhizni. Teper vy mozhete pochuvstvovat sebya luchshe, yesli ne spite vsyu noch i budete uchit sya, i vy budete govorit sebe, chto deystvitelno uchites i sobirayetes proyti etot test, no realnost takova, chto vy s bolshey veroyatnostyu spravites khuzhe, yesli vam ne khvatit sosredotochitsya i delat glupyye oshibki, iz-za kotorykh vy propuskayete otvety.
Yesli vy uchites v starshey shkole i sobirayetes postupit v kolledzh, vy potratite eti gody na to, chtoby sdat ryad standartnykh ekzamenov. Oni budut vklyuchat v sebya sochetaniye obshchenatsional nykh ekzamenov (PSAT, SAT, AP) i ekzamenov shtata. Bol shinstvo ekzamenov po matematike i mnogiye standartizirovannyye ekzameny po yestestvoznaniyu pozvolyayut i rekomenduyut ispol zovat kalkulyatory, osobenno graficheskiye kalkulyatory. K sozhaleniyu, kazhdyy nabor ekzamenov organizovan raznymi rukovodyashchimi organami, kazhdyy so svoyey sobstvennoy politikoy, opredelyayushchey, kakiye kalkulyatory odobreny dlya ispol zovaniya uchastnikami testirovaniya.
No v kakikh imenno situatsiyakh ucheniku sleduyet propustit urok matematiki? Na etot vopros mozhet byt slozhno otvetit, potomu chto resheniye o tom, gotov li uchenik propustit tselyy god po matematike, zavisit ot sposobnosti opredelit uroven komforta etogo uchenika s matematicheskimi kontseptsiyami za ves god na osnove vsego odnogo provedennogo testa. v nachale goda. Yesli, gipoteticheski govorya, u uchenikov prosto «udachnyy den, i im udalos otvetit na neskol ko voprosov, v kotorykh on ili ona ne byl polnost yu uveren, uchenik mog by v konechnom itoge popast v boleye prodvinutyy klass, chem on ili ona mogli by ne byt gotovym k. I naoborot, u umnogo uchenika mozhet byt plokhoy den, i v itoge on potratit god na izucheniye togo, chto on ili ona deystvitel no uzhe znayet.
Ladno, eto proiskhodit kazhdyy god, poetomu mnogiye ucheniki pozvolili sebe otstavat v klasse matematiki, i oni prosto ne mogut poluchit pomoshch, v kotoroy oni nuzhdayutsya, dostatochno bystro, chtoby naverstat upushchennoye, poka klass prodolzhayet svoy put. Zatem sleduyushcheye, chto oni uznayut, - den poslednego ekzamena uzhe na podkhode. Pozhaluysta, ne razvalivaytes, i nikakaya matematika ne vkhodit v chislo predmetov, po kotorym ya rekomenduyu zubrezhku ili ne spat vsyu noch, chtoby proyti final, potomu chto eto trebuyet slishkom bol shoy kontsentratsii, tochnosti i logiki - myshleniya pravogo polushariya.
Khorosho, dopustim, u vas problemy na urokakh matematiki, i vy khotite sdat posledniy ekzamen, no u vas prosto chertovski mnogo vremeni, chtoby zapomnit vse uravneniya, kotoryye vam nuzhny dlya vsekh razlichnykh tipov zadach. Chto zh, yesli u vas yest solidnyye navyki algebry i khorosho razbirayutsya v mnozhitelyakh, u vas vse budet khorosho, kak tolko vy vyuchite pravilnuyu formulu? YA soglasen, i, vozmozhno, nam stoit nemnogo obsudit, kak rabotayet logicheskaya chast vashego mozga, i pochemu ne spat vsyu noch pered ekzamenom, vozmozhno, ne tak razumno.
Poymite, chto naiboleye vazhnoye znacheniye formul sostoit v tom, chto oni konstatiruyut otnosheniya, kotoryye sushchestvuyut vsegda - VSEGDA ISTINNY. Eto oznachayet, chto oni VSEGDA mogut pomoch vam! Odnako, chtoby formuly pomogli vam, oni dolzhny imet dlya vas znacheniye. Vychislitelnyye formuly trebuyut znachitelno bolshe usiliy dlya sozdaniya etogo znacheniya. My podrobno obsudim eto v № 3. Zapominayte formuly po mere ikh poyavleniya. Vy mozhete sdelat domashneye zadaniye, prosto vzglyanuv na formulu, no ne zhdite nochi pered ekzamenom, chtoby popytatsya zapomnit mnogiye formuly. Rabota s formulami po mere ikh postupleniya i nemedlennoye sokhraneniye ikh v dolgovremennoy pamyati garantiruyet, chto eta informatsiya budet usvoyena navsegda, a ne tolko dlya testa.
Vsegda chitayte formuly kak zakonchennyye mysli ili predlozheniya. Formuly vsegda dolzhny imet znak ravenstva. Takim obrazom, formula dlya rasstoyaniya NE rt. Formula dlya rasstoyaniya d = rt. Vsegda proveryayte pravil nost formul. Naprimer: raznitsa dvukh polnykh kvadratov mozhet vyglyadet kak 25-4. Ochevidno, znacheniye etogo chisla ravno 21, no yesli my poluchim eto zhe znacheniye s pomoshchyu formuly, my proverim formulu. Po formule 25-4 mozhno bylo by zapisat kak 5 ^ 2-2 ^ 2 i razlozhit na mnozhiteli kak (5 + 2) (5-2) = 7 (3) = 21. Takim obrazom, formula proverena. Znayte, kak oboznachat otvety po formule i chto oni oznachayut. Bud te konkretny pri chtenii formul. Poskol ku vse formuly ploshchadi nachinayutsya s A =, boleye polezno dobavit dopolnitelnuyu informatsiyu. V A = (pi) r ^ 2 luchshe vsego chitat eto tak: «Ploshchad kruga ravna pi, umnozhennomu na kvadrat radiusa kruga». Obyazatelno pomnite, chto ploshchad vsegda izmeryayetsya v kvadratnykh yedinitsakh.
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