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Lesson Template No :1
Name of the teacher: Himasree.P.G Period :
Name of the school : Time : 45
Standard : IX Date :
Subject : Mathematics Strength :
Unit : hr¯-§-fpsS Af-hp-IÄ Average Age : 14+
Topic : hr¯-¯nsâ Npä-fhv
Curricular Statement
1) GXv hr¯-¯n-sâbpw Npä-f-hns\ AXnsâ hymkw sIm v lcn-¨m In«p-¶Xv Htc kwJy BsW¶v Adn-bp¶p
2) hr¯-¯nsâ Npä-fhv -= F¶-dn-bp-¶p. hymkw
3) Hcp hr¯-¯nsâ Bcw r BsW-¦n AXnsâ Npä-fhv 2 r BsW¶v Adn-bp¶p
Content Analysis
Terms : hr¯w, Bcw, hymkw, hr¯-¯nsâ Npä-fhv
Facts :1) Hcp \nÝnX _nµp-hn \n¶v Xpey AI-e-¯n-epÅ
Cu Ipsd _nµp-Isf tbmPn-¸n¨v e`n-¡p¶ cq]w
BWv hr¯w
2) \nÝnX _nµp-hmWv hr¯-tI{µw
3) hr¯-tI-{µ-¯n \n¶v Xpey AI-e-¯n-epÅ \ofw
BWv Bcw
4) Bc-¯nsâ Cc«n hymkw
5) Npäp-apÅ Af-hmWv Npä-fhv
6) hymkw IqSp-t¼mÄ hr¯-¯nsâ Npä-fhpw
IqSpw
7) hr¯-¯nsâ Npä-fhv hymk-¯n\v A\p-]m-Xn-I-
amWv
8) hr¯-¯n-\p-Ånse ka-_-lp-`p-P-§-fpsS Npä-fhv
hr¯-¯nsâ Npä-f-hn-t\mSv ASp¯p hcpw
9) GXp hr¯-¯nsâ Npä-f-hn-s\bpw
hymkw sIm p lcn-¨m In«p-¶Xv aq¶n-t\-¡mÄ
Aev]w IqSnb Hcp kwJy-bmWv. Cu kwJysb
NnÓw sIm p kqNn-¸n-¡p-¶p.
10) hr¯-¯nsâ Npä-fhv = 2r
Concept : hr¯-¯nsâ Npä-fhv F¶ Bibw
Equation : hr¯-¯nsâ Npä-fhv = 2r
Symbols : ss]
r Bcw
Learning Outcome
The Students will be able,
1) recalls knowledge or information related to circle
2) recognize the different geometrical figures
3) excemplify the different relationship for finding the
perimeter of different circles
4) comparing the perimeter of different dimension of
circle
5) infering about perimeter of circle
6) apply the above concept in familiar situation
7) attributing the proportionality of perimeter and diameter
of the circle
8) checking the value of in different circles
9) generate the alternate way of finding perimeter
10) perform computing skill in finding perimeter of a
circle in different situation
11) accept the beauty of mathematical principles
Pre – requisites
The pupil knows about
1. Circle
2. Radius
3. Diameter
TEACHING LEARNING RESOURCES
1. Models of circles
2. Charts
3. Ordinary class room teaching aids
Classroom interaction Procedure Responses IntroductionActivity :1A[ym-]nI hr¯-¯nsâ amXrI \ÂIn Bchpw hymkhpw Is -¯m³ Bh-iy-s¸-Sp¶p Bcw OC bpw hymkw Abbpw BsW¶v Is -¯p¶p
PresentationActivity :2A[ym-]nI Ip«n-Isf 4 {Kq¸p-I-fmbn Xncn-¡p¶pHmtcm {Kq¸n\pw hyXykvX Af-hn DÅ Pymao-Xnbcq]-§Ä \Âin. Ah-bpsS hi-§-fpsS \ofhpwNpä-fhpw X½n-epÅ _Ôw NÀ¨-bn-eqsS Is -¯m³ Bh-iy-s¸-Sp¶p hi-§-fpsS \ofw IqSp-¶-Xn\v A\p-k-cn¨v Npä-fhv IqSp-¶p-sh¶v Ip«n-IÄ NÀ¨ sNbvXv Is -¯- ¶p. hi-§-fpsS \ofhpw Npä-fhpw
A\p-]m-Xn-I-amsW¶v Is -¯p-¶p.
Classroom interaction Procedure RespondesActivity :3aäp Pyman-Xob cq]-§-sf-t¸mse hr¯-¯nsâNpä-fhv Af¶p Is -¯m³ km[n-¡n-Ã. AXn-\m hyXykvX hr¯-§Ä \ÂIn Ah-bpsS Npä-fhv \qev C]-tbm-Kn¨p Is -¯m\pw hymkw kvsIbn D]-tbm-Kn¨pw Is -¯m³ Bh-iy-s¸-Sp¶p
Activity :4B ]«n-I-bn \n¶pw hr¯-¯nsâ hymkhpw Npä-fhpw X½n-epÅ _Ôw Is -¯m³ Bh-iy-s¸-Sp-¶p. hr¯-¯nsâ Npä-f-hns\ hymkw sIm v lcn¨v Fgp-Xm³ Bh-iy-s¸-Sp-¶p.
hymkw Npä-fhv2 6.284 12.565 15.73 9.42
Classroom interaction Procedure Respondes
hymkw Npä-fhv Npä-fhv/ hymkw
2 6.28 3.14
3 9.42 3.14
4 12.56 3.14
5 15.7 3.14
Cu ]«n-I-bn \n¶v F´v a\-kn-em¡mw?
hymkw IqSp-¶-Xn\p A\p-k-cn¨v hr¯-¯nsâ Npä-fhv IqSp-¶p. AXm-bXv hr¯-¯nsâ Npä-fhpw hymkhpw A\p-]m-Xn-I-am-Wv,
Npä-f-hns\ hymkw sIm v lcn-¨-t¸mÄ aq¶n-t\-¡mÄ IqSnb Hcp kwJy-bmWv e`n-¨-Xv.
Classroom interaction Procedure Respondes
AXm-bXv GXp hr¯-¯n-sâbpw Npä-f-hns\ hymkw sIm v lcn-¡p-t¼mÄ In«p-¶Xv Hcp Ønc kwJy-bm-Wv. Cu kwJysb sIm v kqNn-¸n-¡p-¶p. bpsS GI-tZ-i-hne 3.14 BWv. Cu hr¯ kwJybv¡v F¶ t]cn-«Xv hneyw tPm¬kv F¶ KWn-X-Im-c-\m-Wv. {]kn² KWnX imkv{X-Ú-\mb hntbm¬ lmÀUv HmbvseÀ At±-l-¯nsâ IrXn-I-fn D]-tbm-Kn¨v XpS-§n-b-tXm-sS-bmWv Cu NnÓ-¯n\p {]Nmcw e`n-¨Xpw AXv Dd-¨-Xpw.
Activity :5Npä-f-hns\ hymkw sIm v lcn-¡p-t¼mÄ F¶ Ønc kwJy In«p-¶p. CXn \n¶pw hr¯-¯nsâ Npä-fhv Is -¯m³ Bh-iy-s¸-Sp¶p
Npä-fhv = hymkwNpä-fhv = x hymkwNpä-fhv = x 2 r
= 2 r
Classroom interaction Procedure Respondes
hymkhpw Bchpw X½n-epÅ _Ô-ap-]-tbm-Kn¨v Cu ka-hm-Iys¯ F§s\ amän Fgp-Xmw. AXm-bXv r Bc-apÅ Hcp hr¯-¯nsâ Npä-fhv Is -¯m³ 2 r F¶ ka-hmIyw D]-tbm-Kn¡mw F¶v A²ym-]nI ]dªv sImSp-¡p¶pA²ym-]nI note sImSp-¡p¶p chart ImWn-¡p¶p
Chart -1
GXv hr¯-¯n-sâbpw Npä-f-hns\ hymkw sIm p lcn-¡p-t¼mÄ Hcp Ønc-kwJy e`n-¡p-¶p. Cu Ønc-kw-Jysb sIm v kqNn-¸n-¡p-¶p. bpsS GI-tZ-i-hne 3.14 BWv
Chart -2
hr¯-¯n-sâ Npä-fhvr Bcw Bb hr¯-¯nsâ Npä-fhv 2 r BWv
Application
hymkw 8 Bb Hcp hr¯-¯nsâ Npä-fhv Is -¯pIF´mWv I p ]nSn-t¡- Xv?hr¯-¯nsâ Npä-fhv F§s\ Is ̄ mw?
hr¯-¯nsâ Npä-fhv Is -¯m³ Bh-iy-amb hnh-
c-§Ä Fs´Ãmw?tNmZy-¯n X¶n-cn-¡p¶ hkvXpX Fs´Ãmw?hr¯-¯nsâ hymk-¯n \n¶pw Bcw F§s\ Is ¯mw?A§s\ BsW-¦n hr¯-¯nsâ Bcw F{X?F¦n hr¯-¯nsâ Npäfhv F{X?
hr¯-¯nsâ Npä-fhv
2 r F¶v ka-
hmIyw D]-tbm-
Kn¨v Is ̄ mw
hr¯-¯nsâ Bcw
hymkw= 8 cm
Bcw = hymkw
2
8 = 4 cm
2
hr¯-¯nsâ Npä-fhv
= 2 r
= 2 x 3.14 x 4
= 25.12
REVIEW
1) Hcp hr¯-¯nsâ Npä-fhpw hymkhpw X½n-epÅ
_Ôw F´v?
2) bpsS hne F´v?
3) hr¯-¯nsâ Npä-fhv Is -¯m-\pÅ kq{X-hmIyw F
´v?
FOLLOW UP ACTIVITIES20 skâo aoäÀ Bc-apÅ Hcp N{Iw Dcp p \o§p-¶p. 10 Id¡w Ign-bp-t¼mÄ Hm{X aoäÀ Zqcw apt¶m-«p t]mIpw.
