
Prostornina l, dl, ml 8. razred
Presentation
•
Mathematics
•
8th Grade
•
Practice Problem
•
Easy
tadej gorta
Used 2+ times
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7 Slides • 4 Questions
1
Matematika, 8. razred
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Prostornina nam pove, koliko prostora nekaj zavzame. Predstavljaj si, da polniš kozarec z vodo – prostornina je količina vode, ki gre v kozarec!
To lahko merimo v l (litrih), dl (decilitrih) ali ml (mililitrih).
Kaj je prostornina?
Primer:
En kozarec vode ima prostornino 2 dl.
Velika plastenka vode ima prostornino 1 l.
Ena žlica vode ima prostornino 15 ml.
3
Multiple Choice
Kaj misliš, kaj ima večjo količino :
Tvoj najljubši sok v tetrapaku ali vedro za vodo? Razmisli, zakaj!
Namig: Vedro lahko drží toliko vode, da jo označujemo z enoto l (litri)!
Sok
Vedro vode!
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Vedro je ogromno! Zato ima tudi večjo prostornino kot embalaža za sok, ki je veliko manjša.
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Kako pretvarjamo prostornino?
Pretvarjanje prostornine je preprosto, če si zapomnimo:
1 dl = 10 cl
1 cl = 10 ml
Predstavljaj si, da imaš v vedru 5 l vode. Koliko je to decilitrov? Preprosto pomnožiš:
5 l = 50 dl.
Primeri:
Pretvori 3 l v dl:
3 l = 30 dl.
Pretvori 25 dl v cl:
25 dl = 250 cl.
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Fill in the Blanks
Koliko centilitrov (cl) ima 7 dl?
Type answer...
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Zakaj je prostornina pomembna?
Ko kuhamo in merimo mleko ali olje.
Ko izbiramo pijačo v trgovini.
Ko polnimo bazen ali akvarij.
Predstavljaj si, da pečeš torto in potrebuješ 10 cl mleka, vendar imaš samo merilni vrč v mililitrih.
Kaj narediš?
Pretvoriš
10cl = 100ml
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Skupinsko delo
Sledimo receptu za limonado. Preden se lotimo navodil, bomo morali vse različne enote pretvoriti v eno in sicer v centilitre (cl).
5 dl vode
2 dl soka
50 ml sladkornega sirupa
1 dl = 10 cl
1cl = 10ml
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10
Fill in the Blanks
Koliko cl je 12 dl?
Type answer...
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Multiple Choice
Tako je!! Koliko pa je 120 cl mililitrov (ml)?
12 ml
1200 ml
1,2 ml
120.000 ml
Matematika, 8. razred
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