1 MATHEMATICS TEXTBOOK PART-2 Name: ____________________________ Section: ________________ Roll No.: ______ School: ____________________________
Preface ClassKlap partners with schools, supporting them with learning materials and processes that are all crafted to work together as an interconnected system to drive learning. ClassKlap presents the latest version of the VISA NEP series – updated and revised after considering the perceptive feedback and comments shared by our experienced reviewers and users. Designed specifically for CBSE schools, the VISA NEP series endeavours to be faithful to the spirit of the National Curriculum Framework (NCF) 2005. Therefore, our books strive to ensure inclusiveness in terms of gender and diversity in representation, catering to the heterogeneous Indian classroom. The books are split into two parts to manage the bag weight. The aim of the NCF 2005 regarding Mathematics teaching is to develop the abilities of a student to think and reason mathematically, pursue assumptions to their logical conclusion and handle abstraction. The VISA NEP Mathematics textbooks and workbooks for CBSE schools offer the following features: S tructured as per Bloom’s taxonomy to help organise the learning process according to the different levels involved Student engagement through simple, age-appropriate language Supported learning through visually appealing images, especially for grades 1 and 2 Increasing rigour in sub-questions for every question in order to scaffold learning for students W ord problems based on real-life scenarios, which help students to relate Mathematics to their everyday experiences Mental Maths to inculcate level-appropriate mental calculation skills S tepwise breakdown of solutions to provide an easier premise for learning of problem-solving skills Overall, the ClassKlap VISA NEP Mathematics textbooks, workbooks and teacher companion books aim to enhance logical reasoning and critical thinking skills that are at the heart of Mathematics teaching and learning. – The Authors
I Will Learn About I Recall Contains the list of learning objectives to be covered in the Discusses the prerequisite chapter knowledge for the concept from the previous academic I Think year/chapter/concept/term Introduces the concept and arouses curiosity among students I Remember and Understand Train My Brain Explains the elements in detail that Checks for learning to gauge the form the basis of the concept Ensures understanding level of students, that students are engaged in learning testing both skill and knowledge throughout Pin-up Note Contains key retention points concerning the concept I Apply I Explore (H.O.T.S.) Connects the concept to Encourages students to extend real-life situations by enabling the concept learnt to advanced students to apply what has been scenarios learnt through the practice questions Connect the Dots Maths Munchies A multidisciplinary section that Aims at improving speed of connects a particular topic to calculation and problem solving other subjects in order to enable with interesting facts, tips or tricks students to relate better to it Drill Time A Note to Parent Additional practice questions at (QJDJHV¬DSDUHQWLQWKH the end of every chapter out-of-classroom learning of their child and conducting activities to reinforce the learnt concepts
Contents Class 1 5 Subtraction 5.1 Subtract 1-digit and 2-digit Numbers.............................................................. 1 6 Time 6.1 Earlier and Later............................................................................................... 12 76.2 Long and Short................................................................................................. 18 0 +7 Money 1 -7.1 Identify Common Currency Notes and Coins .............................................. 27 3 46 x7.2 Put Together Small Amounts of Money ......................................................... 32 958 Measurements 8 28.1 Measure Short Lengths Using Non-Standard Units ....................................... 39 8.2 Compare Heavy and Light Objects .............................................................. 45 9 Data Handling 9.1 Collect, Represent and Interpret Data .......................................................... 57
Chapter Subtraction 5 I Will Learn About GLIIHUHQWPHWKRGVRI VXEWUDFWLQJQXPEHUV VXEWUDFWLQJQXPEHUVXSWR ZLWKRXWUHJURXSLQJ Concept 5.1: Subtract 1-digit and 2-digit Numbers I Think %DQWHLKDVWRIIHHV+HJDYHWRIIHHVWRKLVVLVWHU%DQWHLZDQWVWRNQRZ KRZPDQ\\WRIIHHVUHPDLQZLWKKLP+RZGR\\RXWKLQN%DQWHLFDQÀQGWKDW\" 5.1 I Recall /RRNDWWKHYHJHWDEOHVJLYHQ$IHZRIWKHYHJHWDEOHVDUHFXWLQHDFK TXHVWLRQ)LQGWKHUHPDLQLQJQXPEHURIYHJHWDEOHV Vegetables Number D 1
Vegetables Number E F G 5.1 I Remember and Understand 7KHUHDUHDQLPDOVLQDIDUP RIWKHPZHQWDZD\\:HQRZFRXQWWKHQXPEHURIDQLPDOVOHIWLQWKHIDUP 2
7KLVFRXQWJLYHVWKHUHPDLQLQJQXPEHURIDQLPDOVLQWKHIDUP&RXQWLQJWKH QXPEHURIREMHFWVremainingRUleftoverLVFDOOHGsubtraction7KHDQVZHUZH JHWRQVXEWUDFWLQJLVFDOOHGWKHdifference :HXVHWKHV\\PERO¶ï· UHDGDVminus IRUVXEWUDFWLRQ Example 1: &RXQWDQGZULWHWKHFRUUHFWQXPEHURISHRSOHREMHFWV2QHLV GRQHIRU\\RX D 5 32 E Subtraction 3
F Methods of subtraction: Subtract, left, 6XEWUDFWLRQXVLQJÀQJHUV remain DQG 6XEWUDFWLRQXVLQJWKHQXPEHUOLQH difference DUH 9HUWLFDORUFROXPQVXEWUDFWLRQ VRPHZRUGVXVHG /HWXVXQGHUVWDQGWKHVHPHWKRGV LQVXEWUDFWLRQ 6XEWUDFWLRQXVLQJÀQJHUV :HKDYHDOUHDG\\OHDUQWWRVKRZQXPEHUVXVLQJRXUÀQJHUV /HWXVOHDUQWRVXEWUDFWRQHQXPEHUIURPWKHRWKHUXVLQJÀQJHUV 4
Example 2: 6XEWUDFWXVLQJÀQJHUV Solution: D IURPE IURPF IURP D 6 XEWUDFWLQJIURP 2SHQÀQJHUVRQWKHWZRKDQGV &ORVHWZRÀQJHUV &RXQWWKHRSHQÀQJHUVRQWKHKDQGV7KH\\ DUHLQQXPEHU6RWKHGLIIHUHQFHRIWKH JLYHQQXPEHUVLV 7KDWLV² E ² 2SHQÀQJHUV &ORVHÀQJHUV &RXQWWKHRSHQÀQJHUV7KH\\DUHLQQXPEHU 6R² F ² 2SHQ ÀQJHUVRQWKHWZRKDQGV &ORVHÀQJHUV &RXQWWKHRSHQÀQJHUV 6R ² Subtraction using the number line $OLQHPDUNHGZLWKQXPEHUVLVFDOOHGDnumber line :HFDQXVHWKHQXPEHUOLQHWRVXEWUDFWQXPEHUV/HWXVVHHDQH[DPSOH Example 3: 6ROYHXVLQJWKHQXPEHUOLQH D ²E ²F ² Solution: D 7 RÀQG²XVLQJWKHQXPEHUOLQHZHVWDUWIURP Subtraction 5
' UDZDQDUURZIURPWRDVVKRZQ7KLVVKRZVWKHÀUVW QXPEHU 5 7 KHQPRYHVWHSVWRWKHOHIW'UDZDUURZVIRUHDFKVWHSDV VKRZQ 5 7KHQXPEHUDWZKLFKZHHQGWKHVWHSVLV6R² E 6 6 6R² 7 F 7 6R² 6
Vertical or column subtraction :HFDQVXEWUDFWE\\ZULWLQJWKHVPDOOHUQXPEHUEHORZWKHELJJHURQH7KLVLV FDOOHGvertical subtractionRUcolumn subtraction/HWXVVHHDIHZH[DPSOHV Subtraction of 1-digit numbers Example 4: 6XEWUDFWIURP E\\ZULWLQJWKHQXPEHUVLQFROXPQV Solution: :ULWHWKHJLYHQQXPEHUVXQGHUWKHRQHVSODFHDVVKRZQ O 9 – Subtraction of 2-digit numbers Example 5: 6XEWUDFWIURPE\\ZULWLQJWKHQXPEHUVLQFROXPQV Solution: )ROORZWKHVWHSVWRVXEWUDFW Step 1: 6XEWUDFWWKHRQHV Step 2: 6XEWUDFWWKHWHQV T O TO 5 7 –3 2 –3 2 3 43 TO Solve these TO 8 – TO –2 3 8 – 2 Subtraction 7
Train My Brain 6XEWUDFWWKHIROORZLQJ D ² 8VLQJÀQJHUV E ² 8VLQJQXPEHUOLQH F ² 8VLQJYHUWLFDOVXEWUDFWLRQ 5.1 I Apply :HQRZNQRZKRZWRVXEWUDFWQXPEHUV/HWXVVHHDIHZUHDOOLIHH[DPSOHVRI VXEWUDFWLRQRIQXPEHUV Example 6: SDUURWVZHUHVLWWLQJRQDWUHHRIWKHPÁHZDZD\\+RZPDQ\\ Solution: SDUURWVZHUHOHIWRQWKHWUHH\" T O 8 : ULWHWKHQXPEHUVRQHEHORZWKHRWKHU6XEWUDFW – 8 Example 7: WKHQXPEHUVDQGZULWHWKHGLIIHUHQFHDVVKRZQ 6RSDUURWVZHUHOHIWRQWKHWUHH . ULVKSLFNHGVWLFNVDQG6DQMD\\SLFNHGVWLFNV +RZPDQ\\PRUHVWLFNVGLG6DQMD\\KDYHWKDQ.ULVK\" Solution: : ULWHWKHQXPEHUVRQHEHORZWKHRWKHU6XEWUDFW T O WKHQXPEHUVDQGZULWHWKHGLIIHUHQFHDVVKRZQ 2 2 – 2 6R6DQMD\\KDGVWLFNVPRUHWKDQ.ULVK 5.1 I Explore (H.O.T.S.) /HWXVVHHDQRWKHUH[DPSOH Example 8: $ QLOKDVVWDPSV+HJDYHVWDPSVWR5LWDDQGVWDPSVWR 0DKHVK+RZPDQ\\VWDPSVDUHOHIWZLWK$QLO\" 8
Solution: O 8 – 6WDPSVZLWK$QLO 6WDPSVJLYHQWR5LWD 6WDPSVUHPDLQLQJZLWK$QLO O 6WDPSVUHPDLQLQJZLWK$QLO –2 6WDPSVJLYHQWR0DKHVK 2 6WDPSVUHPDLQLQJZLWK$QLO 6RVWDPSVDUHOHIWZLWK$QLO Maths Munchies 7RVXEWUDFWGLJLWQXPEHUVTXLFNO\\IROORZWKHVHVWHSV 213 6XEWUDFWIURP :HVXEWUDFWWHQVIURPWHQVRQHVUHPDLQ7KLVTXLFNPHWKRGXVHV UHJURXSLQJ ,QWKHVDPHZD\\ 23 PLQXV D RQHVUHPDLQLIZHVXEWUDFW PLQXV IURP WHQVRQHV PLQXV WHQV E RQHVUHPDLQLIZHVXEWUDFW IURP Connect the Dots EVS Fun <RXKDYHPLONWHHWK,IVRPHRIWKHPIDOORXW\\RXFDQÀQGWKHUHPDLQLQJ E\\VXEWUDFWLRQ Subtraction 9
English Fun 7KHUHDUHOHWWHUVLQWKH(QJOLVKDOSKDEHW2XWRI WKHVHDUHYRZHOV7KHUHVWDUHFRQVRQDQWV7RÀQG WKHQXPEHURIFRQVRQDQWVZHVXEWUDFWIURP :HJHWWKHGLIIHUHQFHDV6RWKHUHDUH FRQVRQDQWVLQWKH(QJOLVKDOSKDEHW Drill Time Concept 5.1: Subtract 1-digit and 2-digit Numbers 1) Subtract the numbers using the number line. D IURP E IURP F IURP G IURP H IURP 2) Subtract the numbers by vertical or column method. D IURP E IURP F IURP G IURP H IURP 3) Word problems D 3 HUF\\KDGSHQFLOV+HORVWRIWKHP+RZPDQ\\SHQFLOVDUHOHIW ZLWKKLP\" E 6 DKLOKDVPDUEOHV9LYHNKDVPDUEOHV:KRKDVIHZHUPDUEOHV DQGKRZPDQ\\OHVV\" 10
A Note to Parent 7DNH\\RXUFKLOGWRWKHVKRSZKHQ\\RXJRWREX\\JURFHULHV$VNKLPRUKHUWRÀQG WKHDPRXQW\\RXKDYHWRSD\\WKHVKRSNHHSHUIRUWKHWKLQJV\\RXEX\\$OVRDVN KLPRUKHUWRÀQGWKHDPRXQWWKHVKRSNHHSHUZLOOUHWXUQ7KLVZLOOLPSURYHKLVRU KHUDGGLWLRQDQGVXEWUDFWLRQVNLOOV Subtraction 11
Chapter Time 6 I Will Learn About WKHWHUPV¶HDUOLHU·DQG¶ODWHU· ¶VKRUWHU· SDUWVRIWKHGD\\ VHTXHQFLQJWKHHYHQWV KDSSHQLQJLQDGD\\ Concept 6.1: Earlier and Later I Think %DQWHLZHQWWRDZLOGVDIDULZLWKKLVSDUHQWV+H WROGKLVFODVVPDWHVWKHQDPHVRIWKHDQLPDOVKH VDZIURPWKHEHJLQQLQJWRWKHHQGRIKLVYLVLW &DQ\\RXDOVRGHVFULEHHYHQWVLQDVHTXHQFH\" 6.1 I Recall :HZDNHXSZKHQWKHVXQULVHV:HJHWUHDG\\DQGJRWRVFKRRO:HVWXG\\DQG KDYHOXQFK$IWHUUHWXUQLQJKRPHZHSOD\\ZLWKRXUIULHQGV$IWHUVWXG\\LQJDQG FRPSOHWLQJKRPHZRUNZHKDYHGLQQHUDQGJRWREHG 12
7KHVHDUHWKHVHULHVRIHYHQWVZHGRHYHU\\GD\\ /HWXVUHFDOOLGHQWLI\\LQJWKHWLPHZKHQDIHZHYHQWVKDSSHQ 7LFNWKHFRUUHFWZRUG D 7KH6XQULVHVLQWKH PRUQLQJHYHQLQJ E :HJRWRVFKRROLQWKH PRUQLQJHYHQLQJ F :HSOD\\LQWKH PRUQLQJHYHQLQJ G 7KHGD\\LVWKHKRWWHVW LQWKHPRUQLQJDWQRRQ H :HKDYHRXUOXQFKLQWKH DIWHUQRRQHYHQLQJ I :KHQLWLVGDUNLWLV DIWHUQRRQQLJKW 6.1 I Remember and Understand :HGRGLIIHUHQWDFWLYLWLHVLQDGD\\ ¶Earlier·RU¶Later·DUH ZRUGVXVHGIRUHYHQWV :HZDNHXSLQWKHPRUQLQJ7KHQZHEUXVKRXU KDSSHQLQJDWGLIIHUHQW WHHWK WLPHV Time 13
6RZDNLQJXSFRPHVHDUOLHUDQGEUXVKLQJWHHWKODWHU,QWKHVDPHZD\\ZHJR WRVFKRRODQGWKHQVWXG\\ 6RJRLQJWRVFKRROLVGRQHHDUOLHUDQGVWXG\\LQJODWHU Example 1: 7 LFNWKHDFWLYLW\\ZKLFKLVGRQHHDUOLHULQWKHJLYHQSDLUVRI DFWLYLWLHV2QHLVGRQHIRU\\RX D 9 E F G H 14
Example 2: :ULWH¶HDUOLHU·DQG¶ODWHU·IRUWKHJLYHQSDLUVRIDFWLYLWLHV2QHLV GRQHIRU\\RX D (DUOLHU /DWHU E __________ __________ F __________ __________ Parts of the day :HNQRZWKDWWKH6XQULVHVRQO\\LQWKHmorning,WVHWVLQWKHevening,WLVULJKW DERYHRXUKHDGDWnoon /HWXVXQGHUVWDQGWKHVHSDUWVZLWKWKHKHOSRIDWLPHOLQH $WLPHOLQHLVDQXPEHUOLQHRQZKLFKWLPHLVVKRZQ 0LG 0LG 1LJKW 1LJKW 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 KRXUV 0LGGD\\ +RXUV 0RUQLQJ 1RRQ $IWHUQRRQ(YHQLQJ 7KHWLPHEHWZHHQPLGQLJKWDQGQRRQLVFDOOHGPRUQLQJ7KHWLPHDW QRRQLVFDOOHGPLGGD\\ 7KHWLPHEHWZHHQQRRQDQGPLGQLJKWLVFDOOHGDIWHUQRRQHYHQLQJ Time 15
Train My Brain $UUDQJHWKHIROORZLQJIURPZKDW\\RXGRHDUOLHUWRODWHULQWKHGD\\ D VOHHSLQJSOD\\LQJJRLQJWRVFKRROEUXVKLQJWHHWK E ZHDULQJFORWKHVZHDULQJVKRHVZHDULQJVRFNVZDNLQJXS F VKRZHUVOHHSLQJZDNLQJXSJRLQJWRVFKRRO 6.1 I Apply :HKDYHOHDUQWWKHGLIIHUHQWSDUWVRIDGD\\ 7KHIROORZLQJWDEOHOLVWVWKHDFWLYLWLHVGRQHLQDGD\\ Activity Part of the day :DNLQJXS (DUO\\PRUQLQJ %UXVKLQJWHHWK 0RUQLQJDQGDWQLJKW 0DQ\\DFWLYLWLHVZLWKFODVVPDWHV 'D\\ QRRQ 'RLQJKRPHZRUN (YHQLQJ *RLQJWREHG 1LJKW &RPSOHWHWKLVWDEOHRI\\RXUDFWLYLWLHV My activity Part of the day ,WDNHDEDWKDQGJHWGUHVVHGIRUVFKRRO ,KDYHP\\EUHDNIDVW ,JRWRVFKRRO ,KDYHP\\OXQFK ,JRWRSOD\\ZLWKP\\IULHQGV ,KDYHP\\GLQQHU :HGRRXUDFWLYLWLHVLQDSDUWLFXODURUGHURUVHTXHQFH:HZDNHXSLQWKHPRUQLQJ DQGEUXVKRXUWHHWK7KHQWDNHDVKRZHUZHDURXUFORWKHVDQGWKHQJRWRVFKRRO 16
Example 3: 3XWWKHSLFWXUHVLQVHTXHQFHE\\QXPEHULQJWKHP2QHLVGRQH IRU\\RX D 214 3 E 6.1 I Explore (H.O.T.S.) 5HDGWKHTXHVWLRQ)LQGWKHSDUWRIWKHGD\\ZKHQWKHDFWLYLWLHVKDSSHQHG Example 4: $QVZHUWKHVHTXHVWLRQV D 5DMXZHQWWRSOD\\DIWHUFRPLQJKRPHIURPVFKRRO:KHQGLG KHJRWRSOD\\\" E +RZFDQZHVD\\ZKHWKHULWLVPRUQLQJRUHYHQLQJ\" F 5 DMXEUXVKHGKLVWHHWKDQGZHQWWREHG:KHQGLGKHGRWKLV DFWLYLW\\\" G :KHQGRZHKDYHRXUEUHDNIDVW\" Solution: D LQWKHHYHQLQJ E E\\VXQULVHRUVXQVHW F 5DMXEUXVKHGKLVWHHWKLQWKHQLJKWEHIRUHJRLQJWREHG G LQWKHPRUQLQJ Time 17
Concept 6.2: Long and Short I Think %DQWHLZDVKHGFORWKHVLQDZDVKLQJPDFKLQHGDLO\\2QHGD\\WKHUHZDVQR SRZHU+HVSHQWPRUHWLPHZDVKLQJFORWKHVE\\KDQG+HZRQGHUHGZK\\LW WRRNPRUHWLPHIRUWKHVDPHZRUN 6.2 I Recall 5HFDOOWKDWZHGRPDQ\\DFWLYLWLHVGXULQJWKHGD\\ :HKDYHOHDUQWWKHFRQFHSWV¶HDUOLHU·DQG¶ODWHU·/HWXVUHYLVHWKLVFRQFHSW 7LFNWKHDFWLYLW\\WKDWLVGRQHHDUOLHULQHDFKRIWKHIROORZLQJ D VKRZHULQJEUXVKLQJ E GLQQHUJRLQJWREHG F JRLQJWRVFKRROSOD\\LQJ G KDYLQJEUHDNIDVWKDYLQJOXQFK H JHWWLQJUHDG\\IRUVFKRROZDNLQJXS 6.2 I Remember and Understand :HREVHUYHWKDWGLIIHUHQWDFWLYLWLHVWDNHGLIIHUHQW DPRXQWVRIWLPH)RUH[DPSOHUHDGLQJDSDJH Different activitiesWDNH WDNHVOHVVWLPHWKDQZULWLQJDSDJH different times Example 5: 7 LFNWKHDFWLYLW\\ZKLFKWDNHVOHVVWLPH LQWKHJLYHQSDLUVRIDFWLYLWLHV2QHLV GRQHIRU\\RX 18
D 9 E F G Example 6: : KLFKRQHIURPWKHIROORZLQJSDLUVRIDFWLYLWLHVWDNHVPRUHWLPH\" &LUFOHWKHULJKWRQH D HDWLQJGULQNLQJZDWHU E FRPELQJKDLUVKRZHULQJ F GUDZLQJDKRXVHFRORXULQJDKRXVH Solution: D HDWLQJGULQNLQJZDWHU E FRPELQJKDLUVKRZHULQJ F GUDZLQJDKRXVHFRORXULQJDKRXVH Time 19
Train My Brain :KLFKDFWLYLW\\LQHDFKRIWKHSDLUVZLOOWDNHORQJHUWLPHWRÀQLVK D HDWLQJOXQFKRUEUXVKLQJWHHWKBBBBBBBBBBBBBBBB E ZULWLQJDSDJHRUUHDGLQJDSDJHBBBBBBBBBBBBBB F ZDONLQJWRVFKRRORUUXQQLQJWRVFKRROBBBBBBBBBBBBB 6.2 I Apply 5HDGVRPHH[DPSOHVWRÀQGWKHWLPHWDNHQIRUGLIIHUHQWDFWLYLWLHV Example 7: 2EVHUYHWKHJLYHQSLFWXUHVDQGÀOOLQWKHEODQNV2QHLVGRQHIRU \\RX D :HGRPDQ\\DFWLYLWLHVGXULQJWKHday QLJKWGD\\ E ,VSHQGPRUHWLPHBBBBBBBBBBBBBB ZDWFKLQJ79VWXG\\LQJ F ,WDNHPRUHWLPHZKLOHUHDGLQJBBBBBBBBBBB DSDJHDERRN 20
G 7UDYHOOLQJE\\BBBBBBBBBBBBB DHURSODQHEXV WDNHVOHVVWLPH H B BBBBBBBBBBBBBBBBBB &RRNLQJ(DWLQJ IRRGWDNHVPRUHWLPH Example 8: :ULWH¶PRUHOHVV·LQWKHEODQNDFFRUGLQJWRWKHWLPHWDNHQE\\WKH DFWLYLWLHV D :DWFKLQJDPRYLH²BBBBBBBBBBBBBBWLPH :DWFKLQJD79VKRZ²BBBBBBBBBBBBWLPH E 6SHDNLQJ²BBBBBBBBBBBBWLPH :ULWLQJ²BBBBBBBBBBBWLPH F :HDULQJFORWKHV²BBBBBBBBBBBWLPH :HDULQJVKRHV²BBBBBBBBBBBWLPH Solution: D :DWFKLQJDPRYLH²moreWLPH :DWFKLQJD79VKRZ²lessWLPe E 6SHDNLQJ²lessWLPH :ULWLQJ²moreWLPH F :HDULQJFORWKHV²moreWLPH :HDULQJVKRHV²lessWLPH 6.2 I Explore (H.O.T.S.) 2EVHUYHWKHFODVVWLPHWDEOHJLYHQEHORZ'RHVLWORRNOLNHWKHWLPHWDEOHRI\\RXU FODVV\" Time 21
(QJOLVK +DUG 0DWKV 1VW *DPHV (96 (QJOLVK 6WRU\\ (QJOLVK ZULWLQJ /DQJ 0XVLF (96 /LEUDU\\ 1VW 'DQFH 1VW (96 0XVLF (96 /DQJ /DQJ $9 'DQFH (QJOLVK /LEUDU\\ +DQG 0DWKV $9 5HFLW 0DWKV DWLRQ :ULWLQJ PT 0XVLF 0DWKV 1VW $9 (96 0DWKV .DUDWH 1VW /DQJ /DQJ 0DWKV *DPHV 6ZLP 1VW 6ZLP 1VW (96 PT 'UDZ /DQJ /DQJ 1RZDQVZHUWKHIROORZLQJTXHVWLRQVE\\ORRNLQJDW\\RXUFODVVWLPHWDEOH Example 9: : ULWHDQVZHUVLQWKHVSDFHJLYHQ D :KLFKSHULRGLVPRUHLQQXPEHURQD:HGQHVGD\\\" E +RZPDQ\\GD\\VGR\\RXJRWRVFKRROLQDZHHN\"1DPHWKHP F :KLFKGD\\KDVPRUHQXPEHURI(QJOLVKSHULRGV\" G +RZPDQ\\JDPHVSHULRGVDUHWKHUHLQDZHHN\" Solution: D BBBBBBBBBBBBBBBBBBBB E BBBBBBBBBBBBBBBBBBBB F BBBBBBBBBBBBBBBBBBBB G BBBBBBBBBBBBBBBBBBBB 22
Maths Munchies 213 :HFRQVLGHU¶PRUQLQJ·RQO\\XQWLO¶QRRQ·,WLVNQRZQDVAnte Meridiem (a.m.)7KHWLPHIURP¶QRRQ·WR¶PLGQLJKW·LVPost Meridiem (p.m.) Connect the Dots EVS Fun 0RUQLQJHYHQLQJDQGQLJKWWRJHWKHUPDNHDGD\\0DQ\\VXFKGD\\VPDNH DPRQWK0DQ\\VXFKPRQWKVPDNHDVHDVRQ:HZHDUGLIIHUHQWFORWKHVDW GLIIHUHQWWLPHVRIWKHGD\\DQG\\HDU:HZHDUVFKRROGUHVVLQWKHPRUQLQJ RXUSOD\\WLPHFORWKHVLQWKHHYHQLQJDQGQLJKWGUHVVDWQLJKW'HSHQGLQJRQ WKHVHDVRQZHXVHFORWKHVOLNHVZHDWHUVLQZLQWHUUDLQFRDWGXULQJWKHUDLQ\\ VHDVRQDQGVRRQ English Fun 6HTXHQFHWKHJLYHQSLFWXUHVLQWKHFRUUHFWRUGHURIHYHQWV Time 23
Drill Time Concept 6.1: Earlier and Later 1) Tick the activity which comes later than the other in given pairs of activities. D E F G 24
Drill Time 2) Arrange the activities from morning to evening by giving numbers LQWKHER[HV8VHIRUWKHÀUVWDFWLYLW\\GRQHLQWKHPRUQLQJ. Concept 6. 2: Long and Short 3) Tick '9· the activity that takes more time and cross ‘8’ the activity that takes less time. D E Time 25
Drill Time F G A Note to Parent :KLOHGRLQJGLIIHUHQWDFWLYLWLHVDVN\\RXUFKLOGZKLFKDFWLYLW\\WRRNOHVVWLPHDQG ZKLFKDFWLYLW\\WRRNPRUHWLPH 26
Chapter Money 7 I Will Learn About GLIIHUHQWFRLQVDQGQRWHVRI ,QGLDQFXUUHQF\\ DGGLQJVPDOODPRXQWVRI PRQH\\ JXHVVLQJSULFHRILWHPV DGGLQJUXSHHDQGSDLVH Concept 7.1: Identify Common Currency Notes and Coins I Think %DQWHLVDZGLIIHUHQWFRLQVDQGQRWHVLQKLVPRWKHU·V SXUVH +DYH\\RXDOVRVHHQVXFKFRLQVDQGQRWHV\" 7.1 I Recall :HXVHQRWHVDQGFRLQVWREX\\WKLQJV,QROGHQGD\\VSHRSOHGLGQRWXVH PRQH\\7KH\\ERXJKWWKLQJVWKH\\QHHGHGE\\JLYLQJWKLQJVWKDWZHUHPRUHZLWK WKHP %XWWKHYDOXHRIWKLQJVH[FKDQJHGZDVQRWWKHVDPH6RFRLQVDQGQRWHV 27
ZHUHPDGH7KHHDUO\\FRLQVZHUHPDGHRIPHWDOVVXFKDVEURQ]HDQGVLOYHU 7.1 I Remember and Understand 7KHPRQH\\XVHGLQDFRXQWU\\LVFDOOHGLWVcurrency'LIIHUHQWW\\SHVRIFRLQVZHUH XVHGLQWKHROGHQGD\\VDVVKRZQ 7KH,QGLDQFXUUHQF\\LV Rupee ` :HZULWHUXSHHDV` 7KHQXPEHURQWKHFRLQRUQRWHLVLWVYDOXH 7KHIROORZLQJDUHWKHGLIIHUHQWFRLQVDQGQRWHVZHXVH Coins ` 1 ` 2 ` 5 ` 10 Notes ` ` ` ` 100 ` 200 ` 500 ` 2000 /HWXVVHHDIHZH[DPSOHVRIZULWLQJWKHYDOXHRIDFRLQRUDQRWH 28
Example 1: :ULWHWKHYDOXHRIWKHJLYHQFRLQLQÀJXUHVDQGZRUGV Solution: ` 5XSHHVÀYH Example 2: :ULWHWKHYDOXHRIWKHJLYHQQRWHLQ Solution: ÀJXUHV ` Train My Brain +RZDUHWKHIROORZLQJZULWWHQLQÀJXUHV\" D UXSHH E UXSHHV F UXSHHV 7.1 I Apply :HXVHPRQH\\WREX\\WKHWKLQJVZHQHHG7KHYDOXHRIWKHJRRGVLVFDOOHGWKHLU ‘Rate·RU¶Price· /HWXVVHHVRPHH[DPSOHVZKHUHZHXVHPRQH\\ Example 3: *XHVVWKHSULFHRIWKHVHLWHPVDQGWLFNLW2QHLVGRQHIRU\\RX `5 9 `50 `3 `30 D DSRW E DVKDUSHQHU `1 `10 `2 `20 F DFKRFRODWHEDU G DEDOO Money 29
Example 4: 2EVHUYHWKHUDWHRIHDFKNLQGRIIUXLWJLYHQEHVLGHLW Grapes Bananas Watermelon ` 60 ` 40 ` 60 Apple Pear ` 40 ` 25 Orange Blueberries Strawberry ` 40 ` 90 ` 10 )LOOLQWKHEODQNVZLWKWKHUDWHVRIWKHIUXLWVJLYHQ2QHLVGRQHIRU\\RX ` 40 30
7.1 I Explore (H.O.T.S.) 6RPHWLPHVZHJXHVVWKHPRQH\\QHHGHGWREX\\WKHWKLQJVZHQHHG/HWXVVHH DIHZH[DPSOHV Example 5: 0RQDKDVDQRWHRI`DQGDQRWHRI`6KHDOVRKDVDQRWH RI`7KHER[VKRZVVRPHREMHFWVZLWKWKHLUUDWHV :ULWHWKHQDPHVRIWKHREMHFWVWKDW0RQDFDQEX\\IRU D `E `F ` Item Price Item Price $SDLURI ` 20 $SDLURI ` 50 VRFNV VOLSSHUV $IURFN ` 80 $ELJ FRORXULQJ ERRN ` 100 Money 31
Solution: 7KLQJVWKDW0RQDFRXOGEX\\IRU D ` $SDLURIVOLSSHUV E ` $SDLURIVRFNV F ` $ELJFRORXULQJERRN Concept 7.2: Put Together Small Amounts of Money I Think %DQWHLOLNHVDVWLFNHURI%DWPDQ+HZDQWVWREX\\LW ,WFRVWV`+RZFDQ%DQWHLSD\\IRUWKHVWLFNHUXVLQJ GLIIHUHQWFRLQV\" 7.2 I Recall :HKDYHOHDUQWDERXWFRLQVDQGFXUUHQF\\QRWHV,GHQWLI\\WKHFRLQVDQGQRWHV :ULWHWKHPLQÀJXUHV D E BBBBBBBBBBBBB BBBBBBBBBBBBB F d) BBBBBBBBBBBBB BBBBBBBBBBBBB H BBBBBBBBBBBBBBBBBB 32
7.2 I Remember and Understand :HFDQWDNHVPDOOHUDPRXQWVWRJHWKHUWRPDNHDODUJHU 0RQH\\LVZULWWHQLQ DPRXQW-XVWDVZHDGGWZRQXPEHUVZHFDQDGG rupeesand paise PRQH\\WRR separatedE\\D dot /HWXVVHHVRPHH[DPSOHV Example 6: 1LQDKDVWKHVHFRLQV +RZPXFKPRQH\\GRHVVKHKDYHLQDOO\" 7RÀQGWKHWRWDOPRQH\\ZHDGGDOOWKHPRQH\\1LQDKDV Solution: 7KDWLV``` ` $VKRNKDVWKUHHQRWHVRI`DQGFRLQVRI`+RZPXFK Example 7: PRQH\\GRHVKHKDYHLQDOO\" $VKRNKDVWKHIROORZLQJDPRXQW Solution: ````` ` 6R$VKRNKDV` Train My Brain D %DQLKDVDFRLQRIRQHUXSHHDQGWHQUXSHHV6KHDOVRKDVWZR FRLQVRI`:KDWLVWKHWRWDOPRQH\\ZLWKKHU\" E 5L\\DKDVÀYHQRWHVRI`6KHDOVRKDVRQHFRLQRI`+RZPXFK PRQH\\GRHVVKHKDYHLQDOO\" F 0RKDQKDVWZRFRLQV`DQGIRXUQRWHVRI`+RZPXFKPRQH\\ GRHVKHKDYHLQWRWDO\" Money 33
7.2 I Apply /HWXVVHHDIHZH[DPSOHVLQYROYLQJDGGLWLRQRIPRQH\\ Example 8: & LUFOHWKHFRLQVXVHGWREX\\WKHJLYHQWKLQJV2QHLVGRQHIRU \\RX Item Rate D ` E ` 10 F ` d) ` 34
e) ` Example 9: $UXQDQG%HHQDKDYHPRQH\\DVVKRZQEHORZ+RZPXFK PRQH\\GRHVHDFKRIWKHPKDYH\" Solution : 0RQH\\$UXQKDV ```` ``` ` `` ` 0RQH\\%HHQDKDV ```` ```` ` Money 35
7.2 I Explore (H.O.T.S.) :HVRPHWLPHVJXHVVWKHPRQH\\QHHGHGWREX\\WKLQJV,WKHOSVXVWRNQRZ ZKHWKHUZHKDYHHQRXJKPRQH\\ /HWXVVHHDQH[DPSOH Example 10: 5LWDZDQWVWREX\\DSHQFLOIRU`DQGDQHUDVHUIRU`+RZ PXFKPRQH\\VKRXOGVKHKDYH\" Solution: &RVWRIDSHQFLO ` &RVWRIDQHUDVHU ` 7RWDOPRQH\\5LWDVKRXOGKDYHWRVSHQGLV`` ` 7KHUHIRUH5LWDVKRXOGKDYHDWOHDVW` Maths Munchies 213 3HQQ\\QLFNHOGLPHDQGFHQWDUHSDUWVRIDGROODU'ROODULVWKH FXUUHQF\\RI7KH8QLWHG6WDWHVRI$PHULFD Connect the Dots EVS Fun )DPLO\\PHPEHUVZRUNWRHDUQPRQH\\:KLFKIDPLO\\ PHPEHUVSHQGVPRQH\\WREX\\WR\\VIRU\\RX\" 36
English Fun 5HFLWHWKLVSRHPRQPRQH\\ Penny, penny, easy spent, Copper brown and worth one cent. Nickel, nickel, thick and fat, You’re worth 5. I know that. Dime, dime, little and thin, I remember—you’re worth 10. Quarter, quarter, big and bold, You’re worth 25, I am told. Half a dollar, half a dollar, Giant size. 50 cents to buy some fries. Dollar, dollar, green and long, With 100 cents you can’t go wrong. Drill Time Concept 7.1: Identify Common Currency Notes and Coins +RZDUHWKHIROORZLQJFXUUHQFLHVZULWWHQLQÀJXUHV\" D UXSHHV E UXSHHV F UXSHHV G H Money 37
Drill Time Concept 7.2: Put Together Small Amounts of Money :KDWLVWKHWRWDODPRXQWLQHDFKRIWKHIROORZLQJ\" D ```` E ```` F G H ``` 3) Word problem D 3 D\\DOZDQWVWREX\\DQRWHERRNIRU`DQGDSHQFLOIRU`+RZ PXFKPRQH\\VKRXOGVKHKDYH\" A Note to Parent 7DNH\\RXUFKLOGDORQJZLWK\\RXIRUVKRSSLQJ/HWKLPRUKHUFKHFNWKHSULFHRID IHZLWHPVDQGXQGHUVWDQGWKHLPSRUWDQFHDQGXVDJHRIPRQH\\ 38
Chapter Measurements 8 I Will Learn About PHDVXULQJVKRUWOHQJWKVXVLQJ KDQGVSDQFXELWIRRWDQG SDFH LGHQWLI\\LQJKHDYLHUDQG OLJKWHUREMHFWV FRPSDULQJZHLJKWVXVLQJ VFDOH Concept 8.1: Measure Short Lengths Using Non-Standard Units I Think %DQWHLFROOHFWHGSDSHUULEERQVIURPKLVVFKRRO+HSODFHGWKHPRQHDERYH WKHRWKHU%XWKHGLGQRWNQRZZKLFKULEERQZDVWKHVPDOOHVW 'R\\RXNQRZWRDUUDQJHULEERQVLQWKHRUGHURIWKHLUOHQJWKV\" 8.1 I Recall VKRUWGLVWDQFHVEHWZHHQREMHFWV KHDY\\DQGOLJKWREMHFWV :HKDYHOHDUQWWRFRPSDUHWKH OHQJWKVRIREMHFWV KHLJKWVRIREMHFWV 39
/HWXVUHFDOOWKHP Short 7LFNDVGLUHFWHG2QHLVGRQHIRU\\RX Low Tall 9 High Near Far 40
Thin Thick Marker Heavy Light 8.1 I Remember and Understand ,QROGHQGD\\VSHRSOHPHDVXUHGOHQJWKVDQGGLVWDQFHVXVLQJ Hand span Cubit Foot Pace 7RPHDVXUHOHQJWKZHXVHRQHRIWKHVHPHWKRGV Hand span cubit foot 5HDGDIHZH[DPSOHVRIPHDVXUHPHQWRIOHQJWK DQG paceDUHFDOOHG Example 1: 0HDVXUHWKHIROORZLQJREMHFWVZLWK QRQVWDQGDUGXQLWVRI WKHJLYHQKDQGVSDQ1RWHGRZQ\\RXU PHDVXUHPHQW DQVZHU2QHLVGRQHIRU\\RX Measurements 41
Object Measuring the length of the Number of object hand spans 3 Example 2: 0HDVXUHWKHVHREMHFWVZLWKWKHJLYHQFXELW:ULWHGRZQ\\RXU DQVZHU2QHLVGRQHIRU\\RX Object Measuring the length Number of cubits 3 42
Object Measuring the length Number of cubits Train My Brain 1DPHDQREMHFWHDFKZKRVHOHQJWKLVHTXDOWR\\RXU D KDQGVSDQ E FXELW F IRRW 8.1 I Apply 5HDGDIHZUHDOOLIHH[DPSOHVZKLFKLQYROYHPHDVXULQJWKHOHQJWKVRIVRPH REMHFWV Example 3: 0HDVXUHWKHOHQJWKVRIWKHREMHFWVDVGLUHFWHG:ULWHWKHYDOXHV LQWKHWDEOHDIWHUPHDVXULQJ Measurements 43
Object Measure D /HQJWKRIDWH[WERRN /HQJWKRID79VWDQG 0HDVXUHGXVLQJ /HQJWKRIDZLQGRZ KDQGVSDQ E /HQJWKRIDWDEOH +HLJKWRIDWDEOH 0HDVXUHGXVLQJ (GJHRIDFKDLU FXELW /HQJWKRIDUDFN F /HQJWKRIDPDW 0HDVXUHGXVLQJ :LGWKRIDPDW DIRRW /HQJWKRIDEODQNHW :LGWKRIDEODQNHW 0HDVXUHGXVLQJ G /HQJWKRI\\RXU SDFH FODVVURRP :LGWKRI\\RXUFODVVURRP 8.1 I Explore (H.O.T.S.) Estimation of lengths and distances 6RPHWLPHVZHQHHGQRWNQRZWKHH[DFWOHQJWKRIDQREMHFW$YDOXHFORVHU WRWKHDFWXDOYDOXHZLOOEHHQRXJK,QVXFKFDVHVZHJXHVVWKHOHQJWKVDQG GLVWDQFHV7RJXHVVWKHYDOXHVLVFDOOHGestimation 44
/HWXVQRZXQGHUVWDQGHVWLPDWLRQRIOHQJWKV Example 4: (VWLPDWHWKHOHQJWKVXVLQJ\\RXUKDQGVDQGIHHW :ULWHWKHYDOXHVLQDWDEOH&KHFNLI\\RXUJXHVVLVFORVHWRWKH DFWXDOPHDVXUH Object Estimate Actual length 0DWKVWH[WERRN /XQFKER[ :DWHUERWWOH 'HVN 'XVWHU )ULHQG·VKHLJKW 'LVWDQFHEHWZHHQWKHGRRURI P\\FODVVURRPWRWKHGRRURIWKH QH[WFODVVURRP /HQJWKRIWKHVFKRROFRUULGRU Concept 8.2: Compare Heavy and Light Objects I Think %DQWHLZHQWWRWKHVXSHUPDUNHWZLWKKLVIDWKHU+LVIDWKHUERXJKWVRPHIUXLWV DQGYHJHWDEOHV+HJDYH%DQWHLWZRVPDOOSDFNHWVWRKROG%DQWHLIHOWWKDW KROGLQJRQHRIWKHSDFNHWVZDVHDVLHUWKDQWKHRWKHU :K\\ZDVLWVR\" 8.2 I Recall :HFDQFRPSDUHKHDY\\REMHFWVZLWKWKHOLJKWRQHV/HWXVUHFDOOWKHVDPH WKURXJKVRPHH[DPSOHV Measurements 45
7LFNDVGLUHFWHG D /LJKWHVW E +HDYLHU F +HDYLHVW G /LJKWHU 8.2 I Remember and Understand 2EMHFWVWKDWZHLJKPRUH DUHheavierDQGWKRVH :HFDQJXHVVWKHZHLJKWRIREMHFWVDQG ZKLFKZHLJKOHVVDUH FRPSDUHWKHP/HWXVXQGHUVWDQGWKURXJKVRPH lighter H[DPSOHV 46
Search
