
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
Prostornina
Matematika, 8. razred
2
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!
4
Vedro je ogromno! Zato ima tudi večjo prostornino kot embalaža za sok, ki je veliko manjša.
5
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.
6
Fill in the Blanks
Type answer...
7
Zakaj je prostornina pomembna?
Prostornino uporabljamo vsak dan, na primer:
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
9
SUPER! Zdaj pa preverimo, koliko smo se naučili!
10
Fill in the Blanks
Type answer...
11
Multiple Choice
Tako je!! Koliko pa je 120 cl mililitrov (ml)?
12 ml
1200 ml
1,2 ml
120.000 ml
Prostornina
Matematika, 8. razred
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