It's about grade 8 Mathematics lesson about "කාලය" (Time). (වේලා කලාප)

2. 21 mdvu
ld,h
ieliSu(-
wÑka; fla' iqrxch
B.Tech (UG)
2019-07-07

3. • f,dalh wdikak jYfhka f.da,dlrhs' ta ksid
f,dalfha úúO ;eka j,g ysre Wod fjkafka úúO
fõ,djka j,hs'
• mD:súh ngysr isg kef.kysrg N%uKh jk ksid
wmsg kef.kysßka ysre Wod ù ngysßka nei
hkakd fia fmfkkjd'
• mD:súh ;ud jgd tla jghla iïmQ¾Kfhka
N%uKh ùug o< jYfhka meh 24 la .kakjd'
• fï wkqj fï meh 24 ;=< tla foaYdxYhl msysgk
,laIHhla ysreg uqyqK,d ;sfnk úg Bg
m%;súreoaO foaYdxYhla ta fudfyd; jk úg
ysref.ka m%;súreoaO fmfofia msysgkjd'
• m<uq ,laIHhg uOHdyakh Wod jk úg fojk
,laIHhg uOHu r;%sh Wod fjkjd'

4. • wlaIdxY yd foaYdxY hk uk#l,ams;a f¾Ld
is;shï j, we£ug m%Odk fya;= folla
jkafka kdúl yd ÿïßh .ukd.uk myiqj"
ikaksfõokh yd ine¢ fõ,d l,dm fjka
lsÍuhs'
• Y%S ,xldj jeks l=vd rgj,a tlu fõ,d
l,dmhlg wkqnoaOj msysgk ksid uq¿ rg
mqrdu tlu fõ,dj Ndú; jk w;r"
reishdj jeks úYd, rgj,a fõ,d l,dm
lsysmhla ;=< msysgkjd'

5. fõ,d l,dm j, uQ,sl isoaOdka;h

6. • f,dalh foaYdxY 360 lg fnod ;sfnkjd' fï
foaYdxY 360 u tla jrla ysreg t,a, ùug meh
24 l ld,hla .; fjkjd'
• ta wkqj mD:súhg wkqrEmj ysreg tla foaYdxYhla
miq lr hdug o< jYfhka ñks;a;= 4 l muK
ld,hla .; fjkjd'
• fndfyda rgj,a tla foaYdxYhlg jvd jmißhl
msysgk ksid;a úkdä 4 fõ,d l,dm we;s lsÍu
.eg¿ iy.; ksid;a foaYdxY 15 la we;=¿ jk
mßÈ mefhka mehg fyda foaYdxY 7'5 la we;=¿
jk mßÈ meh nd.fha fõ,d l,dm we;s lr
.ekSug ñksiqka W;aiql ù ;sfnkjd'
fõ,d l,dm j, uQ,sl isoaOdka;h

7. • j¾;udk Trf,daiq ìysùug m%:ufhka
mqrd;k ckhd fõ,dj ks¾Kh lsÍu i|yd
úúO WmlrK Ndú;d l< w;r iQ¾hhd
yßhgu uqÿka ùu fyda lgl fyda ulr
ksj¾;k j,ska msg; msysá ia:dkhl kï
iQ¾hhd Wmßu jYfhka wyfiys kef.k
fudfyd; uOHdyakh f,i i<lñka fï
WmlrK iliaj ;snqKd'
• iQ¾hh >áld Bg WodyrK imhkjd'
fõ,d l,dm ìysùfï b;sydih

8. fõ,d l,dm ìysùfï b;sydih
iQ¾hh >áldjla

9. • l%s'j 17 jk ishjfia§ ir< wj,ïN >áld
ìysùu isÿjqKd'
• kuq;a kuq;a kdjql lghq;= j,§ tajd fhdod
.ekSu t;rï ksjerÈ fyda m%dfhda.sl jqfKa
keye'
• l%s'j 1764 § ld, udklh ^Chronometer&
ksmoùu isÿ jqKq w;r tu.ska úúO
mdßißl ;;a;aj hgf;a§ ksjerÈj fõ,dj
.Kkh lsÍug yelshdj ,enqKd'
fõ,d l,dm ìysùfï b;sydih

10. fõ,d l,dm ìysùfï b;sydih
ld, udkh

11. • ld, udklh ksmoùfuka miqj;a
f,dalfha fndfyda k.r ish fõ,dj
ks¾Kh lf,a ysre Wodj yd ysre
neihdu wkqjhs'
• fï k.r f,dalfha úúO ia:dk j,"
úúO wlaIdxY yd foaYdxY.; msysàu
j, msysàu ksid tajdfha ysre ke. tk
yd nei hk fõ,djka fjkia jqKd'
fõ,d l,dm ìysùfï b;sydih

12. • ta flfia kuq;a fï fjkialï ta ;rï
.eg¿jla fkdjQfha §¾> .uka yd f.da,Sh
ikaksfõokh 18 yd 19 jk ishjia j, uq,a
Nd.fha ta ;rï m%p,s;j fkd;sîu ksidhs'
• ta flfia kuq;a ikaksfõokh yd ÿïßh
.uka jeks foa f,dj ckm%sh ùu;a iu. ysre
ke.Su yd neiSu wkqj fõ,dj ks¾Kh lsÍu
b;d meg<s,s iy.;nj ñksiqkag wjfndaO
jqKd'
fõ,d l,dm ìysùfï b;sydih

13. • fuys m%;sM,hla yeáhg foaYdxY
lsysmhla tlg wE|d th Tiafia mj;sk
ish¿u ia:dk j, tlu fõ,djla
Ndú; lsÍfï zfõ,d l,dmZ l%ufõoh
lr<shg meñKqkd'
fõ,d l,dm ìysùfï b;sydih

14. • 19 jk ishjfia wefußld tial;a
ckmofha ÿïßh ud¾. we;s ùu;a
iu.u tys .uka lrkakjqkag w;a
ú£ug jQ oeä wmyiq;djhla jQfha tajd
fõ,d l,dm /ila ;=<ska .uka lsÍuhs'
• fï ksid Tjqkg ÿïßh ld, igyka
j,g wkq.; ùu b;d lrorldÍ tlla
jqKd'
19 jk ishjfia we;s jQ wysfhda.

15. • tl< weußld tlai;a ckmofha ish¿u
k.r mdfya úúO fõ,djka Ndú;d l<
w;r iuyr úgl §¾> .ukla hk
u.sfhl=g Èklg úúO fõ,d l,dm 300la
muK miq lsÍug isÿ jqKd'
• fï ;;ajhg úi÷ula f.k tñka wefußld
tlai;a ckmoh l%s'j 1883 § m%Odk fõ,d
l,dm 4 la y÷kajd fokjd'
19 jk ishjfia we;s jQ wysfhda.

16. • 19 jk ishjfia miq Nd.h jk úg f,dj mqrd zfõ,d
l,dmZ l%uh m%p,s;j ;snqKq w;r f,dj ;ekska ;ek
úúO m%Odk fõ,d l,dm ;kdf.k Ndú; lrkq
olskakg ,enqKd'
• ñka jvd;au m%p,s;j ;snqfKa tx.,ka;fha .%sksÉ
k.rh uOH lrf.k ;kdf.k ;snQ z.%skSÉ uOHdyak
f¾LdjZ hs'
• tx.,ka;h l=vd rgla neúka ish N+ñh u; § ta ;rï
fõ,d fjki Tjqkg .egÆjla fkdjqk;a f,dj mqrd
úisreKq hg;a úð; msysgd ;sîu;a kdjql​ .ukd.uk
lghq;= iS>% f,i isÿ lsÍu;a ksid f,dj mqrd hïlsis
iïu; fõ,d l,dm l%uhla l%shd;aul lsÍfï
jeo.;alu Tjqkag;a ;Èkau oekqKd'
.%sksÉ uOHdyak f¾Ldj yd j¾;udk fõ,d l,dm
iïu; fjhs'

17. 19 jk ishjfia we;s jQ wysfhda.

18. .%sksÉ uOHdyak f¾Ldj yd j¾;udk fõ,d l,dm
iïu; fjhs'
cd;Hka;r uOHdyak f¾Ld iuq¿j ^1884&

19. • fï ksid tx.,ka;h;a f,dj m%n, wfkla rgjÆ;a
tlaj wefußld tlai;a ckmofha fjdIskagka
kqjr§ 1884 jif¾ Tlaf;dan¾ udifha§
zcd;Hka;r uOHdyak f¾Ld iuq¿jZ mj;ajkq
,nkjd'
• tys§ .%skSÉ uOHdyak f¾Ldj uOH fldgf.k
fõ,d l,dm ìys lr.ekSug;a" .%skSÉ k.rh
uOHfhka foYdxY 0 .uka lrk f,i i,ld
kef.kysrg yd ngysrg foaYdxY fjka lsÍug;a
iïu; lr .eKqkd'
.%sksÉ uOHdyak f¾Ldj yd j¾;udk fõ,d l,dm
iïu; fjhs'

20. 20 jk ishjfia fõ,d l,dm
.%skSÉ uOHdyak f¾Ldj

21. • úisjk ishjfia uq,a Nd.h jk úg .%skSÉ
uOHdyak fõ,dj f,dj iïu; fõ,dj f,i
f,dalh mqrdu ia:dms; ù ;snqK;a f,dj
iuyr rgj,a ;ukaf.a foaYdxYsl msysàu
wkqj .%sksÉ fõ,dfõ isg úkdä .Kka
fjkia jk mßÈ ish m%dfoaYSh fõ,djka
mj;ajdf.k .shd'
20 jk ishjfia fõ,d l,dm

22. • ta flfia kuq;a tu.ska f,dalhd .%sksÉ fõ,dj
y÷kajd §fï§ n,dfmdfrd;a;= jQ myiq;dj <`.d
lr.; fkdyels jQ ksid l%s'j 1972 §
iïnkaëlrKh lrk ,o úYaùh iïu; fõ,dj
^Coordinated Universal Standard Time& .%sksÉ
uOHdyak fõ,dj fjkqjg y÷kajd ÿka w;r 1978
jir jk úg f,dj ish¿ rgj,a mdfya ks<
jYfhka th ms<sf.k thg wkqj wdikak meh
fyda meh Nd.hl br Wod fjki wkqj fõ,d
l<dm idod .;a;d'
20 jk ishjfia fõ,d l,dm

23. fõ,d l<dm 24 lg jvd ;sfnkjd

24. • úYaùh iïu; fõ,djg ^UTC& wkqj br
Wodj isÿ jk fjkig wkqj wdikak mehg
yiq jk mßÈ j¾;udkh jk úg fõ,d
l,dm fjka ù ;snqK;a ^.%sksÉ f¾Ldfjka
kef.kysrg +1,+2 yd ngysrg -1,-2 hkd§
jYfhka& iuyr ia:dk j, wdikak meh
nd.h fyda úkdä 15 g wkqj;a fõ,d l,dm
fjka lrf.k ;sfnkjd'
fõ,d l<dm 24 lg jvd ;sfnkjd

25. • f,dj iuyr rgj,g .%SIaufha§ jeä ld,hla br
t<sh jefgk ksid bka Wmßu m%fhdack .ekSug
ish fõ,dj mehla fyda meh Nd.hla muK
bÈßhg .kakjd' .%SIauh wjika jQ miq kej;;a
th fmr ;;a;ajhgu fjkia lrkjd'
• fuh uq,skau ks< jYfhka 1908 jif¾§ lekvdfõ
Tkagdßfhda m%dka;fha ;kav¾ fí k.rfha
l%shd;aul lr we;s w;r rgla jYfhka fuh
uq<skau l%shdjg kexjQfha 1916 jif¾ c¾ukshhs'
Èjd iq/l=ï ld,h

26. • .%sksÉ uOH f¾Ldfõ isg ngysrg ngysr
foaYdxY;a kef.kysrg kef.kysr foaYdxY;a
úys§ hk w;r ta folu tlg yuqjk wxYl 180
f¾Ldj reishdj yd wef,ialdj w;ßka meis*sla
id.rh Tiafia jefgkjd'
• tl< ta ;rï .eg¿jla fkdjqK;a miq lf<l
.ukd.ukh ÈhqKq jQ miq fuu f¾Ldj yryd Tn
fudn hkafkl=g ;uka isákafka l=uk Èfkloehs
hk .eg¿j mek ke.a.d'
cd;Hka;r Èk f¾Ldj

27. • ta wkqj fï f¾Ldj Tiafia kef.kysr ÈYdjg
hkafkl=g ish Èk oiqfka tla Èkla wdmiaig .shd
fia ie,elsh hq;= f,i;a ngysr ÈYdjg hkafkl=g
Èkla bÈßhg tl;= lr.; hq;= f,i;a
l%ufõohla ilia flreKd'
• fuh 1884 cd;Hka;r uOHdyak f¾Ld iuq¿fõ§
iïu; jqKq w;r tys§ .%sksÉ uOHdyak f¾Ldj
foYdxY 0 f,i;a foaYdxY 180 zcd;Hka;r Èk
f¾LdjZ f,i;a kï flreKd'
• rg rgj, msysàu wkqj ir< f¾Ldjlska uola
wm.ukh ùï iys;j fï f¾Ldj iïu; lrf.k
;sfnkjd'
cd;Hka;r Èk f¾Ldj

28. cd;Hka;r Èk f¾Ldj

29. tlu fudfyd;l mD:súfha
úúO ia:dk j,
iïu; jYfhka Èk 3 lg
wh;a ld,hka .; fjñka ;sìh
yels nj
Tn okakjdo@
tlu fudfydf;a Èk 3la

30. tlu fudfydf;a Èk 3la

31. • meis*sla ihqf¾ uOHg jkakg úisÍ
mj;sk lsßnd;s j,g wh;a jk ¥m;a
iuQyh cd;Hka;r Èk f¾Ldfõ fomi
mej;Su ksid tlu rdcHh ;=< tl úg
Èk folla .; fjkakd fia ie<lSug
isÿ jqKd'
• tfiau tajd tlu fõ,d l,dmhlg
wh;a f,i i,lkakg;a m%dfhda.slj
fkdyels ;rï ÿrlska msysgd ;sfnkjd
tlu fudfydf;a Èk 3la

32. • fï ksid lsßnd;s rch -11 yd -10 fõ,d
l,dm mdúÉÑh w;yer ta fjkqjg +13 yd
+14 fõ,d l,dm Ndú;hg .ekSug mgka
.;a;d'
• fgdx.dj l<l isgu +13 fõ,d l,dmh
Ndú;d l<d'
tlu fudfydf;a Èk 3la

33. • Bg wu;rj kjiS,ka;h;a ish Èjd iq/l=ï
ld,h l%shd;aul lrk wjêfha§ +13 fõ,d
l,dmhg .efkkjd'
• fï wkqj +13 fõ,d l,dmhg hï uil
m<uq jk Èk Wod jkg úg ,kavkh fmr
udifha 31 jk Èk Èjd ld,h .; lrkjd'
• ta jdf.au -12 fõ,d l,dmhg wh;a ia:dk
;ju;a 30 jkod wjika meh .; lrkjd'
tlu fudfydf;a Èk 3la

34. https://roar.media/sinhala/main/features/how-time-zones-came-into-being/
uQ,dY%(-
ieliSu(-
wÑka; fla' iqrxch
B.Tech (UG)
2019-07-07