Published at Monday, 14 September 2020. математика класс. By Fanchon Menard.
Ispol zuyte standartnuyu kolodu kart (Tuz-Korol). Sygrayte v lyubuyu traditsionnuyu kartochnuyu igru, no zastavte uchenika chto-nibud delat s chislami. Yesli eto igra so sbrosom, oni dobavlyayut ili umnozhayut sbroshennuyu kartu na uzhe imeyushchuyusya. Yesli eto tot, gde vy stavite tri odinakovykh ili tri v posledovatel nosti vniz, vam nuzhno chto-to sdelat s nimi, slozhit vse, slozhit pervyye dva, vychest sleduyushcheye. Nazovite vse faktory, ispolzuya chisla i tak daleye. Ispolzuyte standartnuyu kolodu (tolko A-9) dlya opredeleniya stoimosti. U nikh yest svoi kolody kart, pozvonite po nomeru, posmotrite, skolko vremeni im potrebuyetsya, chtoby nayti chisla i poluchit ikh v pravilnom poryadke. Karty lits mogut byt zapyatymi.
Veselyye kartochnyye igry, v kotorykh vy lovite karty. Eto osnovano na starom favorite, kogda igroki berut 4-5 kart iz razroznennoy stopki i sprashivayut drugikh, yest li u nikh opredelennyye karty. Tsel - kare, razmeshchennaya na stole. Stavit problemy tolko na kartu. Vopros v tom, «Yest li u vas problemy s otvetom ____?» Ubedites, chto yest tolko chetyre zadachi s odnim i tem zhe otvetom. Ispolzuyte populyarnuyu kartochnuyu igru s chislami, tsvetami, dzhokerami, propuskami i vytyagivayte 2/4 karty. Igrayte po standartnym pravilam. Dikiye izmenyat operatsiyu. Nachnite s dobavleniya, kazhdyy raz, kogda vy kladete kartu, vy dobavlyayete yeye k uzhe imeyushcheysya. Starshiye ucheniki vedut promezhutochnyy itog. Kogda razygryvayetsya wild, operatsiya menyayetsya. Uchitel dolzhen reshit, khotyat li oni vozit sya s razdeleniyem! Kak vidite, vozmozhnosti bezgranichny, eto vsego lish nekotoryye idei, kotoryye pomogut vam pridumat sposob razvlechsya s kartochnymi matematicheskimi igrami v svoyem klasse. Kartochnyye igry mogut byt bystrymi i otlichnym uprazhneniyem dlya podkrepleniya, poskolku uchashchiyesya ne proch snova uvidet odni i te zhe fakty, kogda poyavlyayetsya nebolshaya konkurentsiya.
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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