Matematika 9 (I gimnazijos) klasėje

Stačiojo trikampio trigonometrija (sin, cos, tg)

Pagal 9–10 kl. BP mokomasi apibrėžti ir taikyti trigonometrines funkcijas stačiajame trikampyje, spręsti praktinius uždavinius (aukštis, atstumas, nuolydis).

Medium-difficulty topic
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Mokymosi rezultatai
Įžanga: matuojame aukštį
Video: Sinusas, kosinusas ir tangentas stačiajame trikampyje
Kodėl santykiai pastovūs
Sin, cos, tg apibrėžimai
Video: Stačiųjų trikampių trigonometriniai sąryšiai
Specialieji kampai 30°, 45°, 60°
Skaičiuotuvas ir suapvalinimas
Ryšiai tarp sin, cos ir tg
Skaitmeninis tyrimas
Kraštinių radimas
Kampo radimas
Taikymai realiame gyvenime
Dažnos klaidos ir patikra
Praktika: 20+ uždavinių
Sąvokos: stačiojo trikampio trigonometrija
Papildomi šaltiniai ir resursai
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