Class-2Subject-Maths

PrescribedBook

ExploreMathematics

(Cordovalearningseries)

April2018

IWeek: Tables:2to6andcounting

101to1000

IIWeek:- After,Beforefrom(1to100)

NumberNamefrom(1to100)

IIIWeek:- Unit-1Numbers(Half)

IVWeek:- Unit-1Numbers(Complete)

May2018

IWeek:- Unit-2OrdinalNumbers

IIWeek:- Unit-3Additionof2-digit

numbers(Half)

IIIWeek:- Unit-3Additionof2-digit

numbers(Complete)

IVWeek:- MathsLabActivity

June2018

SummerVacation

July2018

IWeek:- Unit-4Subtractionof2-digit

numbers(half)

IIWeek:- Unit-4Subtractionof2-digit

numbers(Complete)

IIIWeek:- RevisionforPreMidTerm

Exam

IVWeek:- PreMidTerm

(23Julyto28July)

August2018

IWeek:- Unit5Additionand

subtractionof(Greater

Number)

IIWeek:- Unit6Multiplication(Half)

+Tables7and8

IIIWeek:- Unit-6Multiplication

(Complete)+Maths

LabActivity

IVWeek:- Unit-7Division

Tables9and10

September2018

IWeek:- RevisionforMidTermExam

IItoIVWeek:-MidTermExam

(12Sept.to26Sept.)

October2018

IWeek:- Unit-8Patterns+MathsLab

Activity(Complete)

IIWeek:- Unit-9Fractions+Maths

LabActivity(Complete)

IIIWeek:- Unit-10Moreaboutshapes

(Half),Tables-11and12

IVWeek:- Unit-10Moreaboutshapes

(Complete)+MathsLab

Activity

November2018

IWeek:- Unit-11Measurement

(Half),Tables13,14

IIWeek:- Unit-11Measurement

(Complete)+

MathsLabActivity

IIIWeek:- RevisionforPostMidTerm

Exam.

IVWeek:- PostMidTermExam

(26Nov.to1Dec.)

December2018

IWeek:- Unit-12Money(Complete)+

MathsLabActivity

IIWeek:- Unit-13Time(Half),Table-15

IIIWeek:- Unit-13Time(Complete)

IVWeek:- MathsLabActivity

January2019

I&IIWeek:- WinterBreak(Tentative)

III&IVWeek:-Unit-14DataHandling

(Complete)

February2019

Revisionforannualexam

March2019

AnnualExam

PreMidTerm:Ch.1to3,Tables2to6

MidTermExam:Ch.1to7,Tables2to10

PostMidTerm:Ch.1,5,6,7to10Tables

2to12

AnnualExam:Ch.1,5,6to14Tables2to

15

PrescribedBook

Marigold(EnglishReaderBook)

GrammarPlus(RatnaSagar)

April2018

IWeek:- Alphabetformation

AtoZandatoz

IIWeek:- Colours,Fruits,Vegetables,

Daysoftheweekand

monthsname

IIIWeek:- MCB:Ch.-1Firstdayat

school

Grammar:Ch.1The

Alphabet(half)

Essay:MySelf

IVWeek:- MCB:Ch.-2Haldi's

Adventure

Grammar:Ch.-1The

Alphabet(Complete)

Subject-English

May2018

IWeek:- MCB:Ch.3IamLucky

Grammar:Ch.2Sentence,

ChangetheNumber

IIWeek:- MCB:Ch.-4Iwant

Grammar:Ch.-2Changethe

Gender.

ApplicationSickLeave

IIIWeek:- MCB:Ch.-5ASmile

Grammar:Ch-3Noun(half)

Oppositewords

IVWeek:- MCB:Ch.-6Thewindand

thesun

Grammar:Ch.-3Noun

(Complete)

June2018

SummerVacation

July2018

IWeek:- MCBCh.-7Rain

Grammar:Ch.-4Verb(Half)

IIWeek:- MCBCh.-8Storminthe

Garden

Grammar:Ch.-4Verb

Complete

Eassy:Myschool

IIIWeek:- Revisionofsyllabus

IVWeek:- Pre-midTermExam

August2018

IWeek:- MCB:Ch.-9ZooManners

Grammar:Ch.-5Articles

IIWeek: MCB:Ch.10FunnyBuuny

Grammar:Applicationfor

anurgentpieceofwork

IIIWeek: MCB:Ch.-11

Mr.Nobody

Grammar:Ch.-6

Pronouns(half)

IVWeek:- MCBCh.-12Curlylocksand

thethreebears

Grammar:Ch.-6

Pronoun(Complete)

September2018

IWeek:- RevisionforMidTermExam

II,III&IVWeek:-MidTermExam

October2018

IWeek:- MCB:Ch.13

(OnmyBlackboardIcan

draw)

Grammar:Ch.7Adjectives

(half)

ChangetheGender

Essay:MyMother

IIWeek:- MCB:Ch.14MakeitShorter

Grammar:Ch.7Adjectives

(Complete)

Changethenumber

IIIWeek:- MCB:Ch.15IamtheMusic

Man

Grammar:Ch.8Adverbs

OppositeWords

IVWeek:- Ch.-16TheMumbai

Musicians

Grammar:Ch.9

Prepositions

Letter:Writealetterto

yourfriendtoinviteinyour

birthdayparty

November2018

IWeek:- MCBCh.-17

GrannyGrannyPlease

Combmyhair

Grammar:Ch.-10

Conjunctions(Half)

IIWeek:- Ch.-18

Themagicporridgepot

Grammar:Ch.-10

Conjunctions(Complete)

OurNationalSymbols

IIIWeek:- RevisionofSyllabus

IVWeek:- Postmidtermexam.

December2018

IWeek:- MCB:Ch.19Strangetalk

Grammar:Ch.11

Composition(half)

Essay:Treesourbest

Friends

IIWeek: MCB:Ch.20The

Grasshopperand

theAnt.

Grammar:Ch.11

Composition(Complete)

Story:ThirstyCrow

III&IVWeek:-Revision

January2019

I&IIWeek:- WinterBreak(Tentative)

III&IVWeek:-RevisionforAnnualExam

February2019

Revisionoffullsyllabus

forAnnualExam

March2019

AnnualExam

Syllabus

PreMidTerm

MCB:Ch.1to4

Grammar:Ch.1to3

ChangetheNumber,Gender

Essay:Myself

PrescribedBook

YouMustKnow(Cordova)

April2018

IWeek:- NationalSymbols

IIWeek:- DaysofRemember

IIIWeek:- Ch.1(OurFlag)

IVWeek:- Ch.2(Forest)

May2018

IWeek:- Ch.3(Roses)

Subject-G.K.

MidTermExam

MCB:Ch.1to12

Grammar:Ch.1to6

Essay:MySchoolandMySelf

Application:Sickleaveandurgentpiece

ofwork,Number,Gender,Opposite

PostMidTerm

MCB:Ch.13to16

Grammar:Ch.1to9

ChangetheGenderand

Oppositewords

AnnualExam:

MCB:Ch.13to20

Grammar:Ch.1to11

Number,Gender,Opposites

Essay:MyMotherandTreesareour

friends

Story:ThirstyCrow

Letter:Lettertoyourfriendstoinvite

inyourbirthdayparty.

IIWeek:- Ch.4(FoodofAnimals)

Ch.5(Musical

Instruments)

IIIWeek:- Ch.6(Spotthe

Differences)

IVWeek:- Ch.7(CorrectPostures)

June2018

SummerVacation

July2018

IWeek:- Ch.8(Independence

Day)Ch.9(IndianDance

Forms)

IIWeek:- Ch.10(Facial

Expressions)

Ch.11(UniqueFruits)

IIIWeek:- Revisionof

PreMidTermExam

IVWeek:- PreMidTermExam

(23Julyto28July)

August2018

IWeek:- Ch.12(BirdWorld)

Ch. 13 (Largest in The

World)

IIWeek:- Ch.14(Amazing

Animals)Ch.15(Clean

Classroom)

IIIWeek:- Ch.16(JoiningTogether)

IVWeek:- TestPaper-1&Ch.17

LargestInIndia

September2018

I&IIWeek:- RevisionofMidTerm

Exam

III&IVWeek:-MidTermExam

(12Sept.to26Sept.)

October2018

IWeek:- Ch.18(KeepFit)

Ch.19(Eco-friendlyHabits)

IIWeek:- Ch.20(AnimatedDisney

Movies)

Ch.21(PractisingGood

Manners)

IIIWeek:- Ch.22(DolphinShows)

IVWeek:- Ch.23(FolkDancesofIndia)

November2018

IWeek:- Ch.24IncreaseHeight

Ch.25TourofIndia

IIWeek:- Ch.26TipsforHealthyteeth

IIIWeek:- RevisionofPostMidTerm

Exam

IVWork:- PostMidTermExam

(26Nov.to1Dec.)

December2018

IWeek:- Ch.27AnimalsthatLivein

Water

IIWeek:- Ch.28Dealingwith

Strangers

IIIWeek:- Ch.29Animals&Groups

IVWeek:- Ch.30HelloAndThankYou

January2019

I&IIWeek:- WinterVacation(Tentative)

IIIWeek:- Ch.31AroundtheWorld

Ch.(32SportsEquipment)

IVWeek:- Ch.33(KeepingOurEarth

Clean)

Ch.34(Races)

February2019

IWeek:- TestPaper-2

II,III&IVWeek:-RevisionofAnnualExam

March2019

AnnualExam

Syllabus

PreMidTermExam:

Ch.1to8

MidTermExam:

Ch.1to17andTestPaper-1

PostMidTerm:

Ch.18to26

AnnualExam:

Ch.5,9,11,13,17and18to34

TestPaper-2

Subject-ComputerScience

PrescribedBook

NewComputerMadeFriendly(Cordova)

April2018

IWeek:- Ch.-1Introductionto

Computers.(Half)

Pg.No.(5to8)

IIWeek:- IntroductiontoComputers.

(Complete)Pg.No.(9to11)

IIIWeek:- Ch.2UsesofComputer

(Half)

Pg.No.(12to16)

IVWeek:- Usesofcomputer(complete)

Pg.No.17to22

May2018

IWeek:- NumberofKeys

Man(Half)

IIWeek:- Ch.3Moreaboutthe

KeyboardandMouse(Half)

Pg.No.(23to26)

IIIWeek:- MoreabouttheKeyboard

andMouse(Half)

Pg.No.(27to31)

IVWeek:- MoreabouttheKeyboard

andMouse(Complete)

Pg.No.(32to36)

June2018

SummerVacation

July2018

IWeek:- RevisionofCh.-1,2,3&

NumberofKeys

IIWeek:- PracticalTest(Keyboardpts

functions)+Paint.Ch.-4

Moreonpaint(half)Pg.No.

37to40,

IIIWeek:- Ch.4MoreonPaint

(Complete)Pg.No.41to47

RevisionforPreMidTerm

Exam.

IVWeek:- Pre-MidTermExam(23July

to28July)

August2018

IWeek:- PracticalTest(Wordpad)+

Ch.-5introductionto

Wordpad(Half)PageNo.48

to50

IIWeek:- PracticalTest(Wordpad)+

Ch.-5Introductionto

Wordpad(complete)Pg.No.

51to54.

IIIWeek:- Shapes(Rectangle,Triangle,

Circle,Oval,Line,arrow,

pointer,star,square)

IVWeek:- RevisionofCh.-5

September2018

IWeek:- RevisionofCh.3,4

IIWeek:- RevisionofCh.1,2

III&IVWeek:-MidTermExam

(12Sept.To26Sept.)

October2018

IWeek: Ch.6LearnaboutICT

(Informationand

communicationTechnology(

(Half)Pg.No.55,56

IIWeek: Ch.6LearnaboutICT

(Complete)Pg.No.57,58

IIIWeek:- AppsWorld

Pg.No.59,60,61

IVWeek:- Practical(Paint)+EnjoyTux

PaintPg.No.62to66.

November2018

IWeek:- RevisionofTestyourself

Pg.No.67,68,69.

IIWeek:- RevisionofTestyourself+

ModelTestPaper

Pg.No.70,71,72

IIIWeek:- Revisionfor

PostMidTermExam

IVWeek:- PostMidTermExam

(26Nov.to1Dec.)

December2018

IWeek: RevisionofCh.-2

IIWeek:- Practical-Wordpad+

Shapes.

IIIWeek:- NumberofKeys+Ch.-3

(Revision)

IVWeek:- Practical(Paint+Keyboard

anditsfunction)

January2019

I&IIWeek:- WinterVacations

(Tentative)

OyZ 2018J«rî‘mdH$me (1 OyZ go 30 OyZ 2018 VH$)

OwbmB© 2018àW‘ gámh … nmR>-5 (no‹S> bJmAmo) ì¶mH$aU … nmR>-5 (g§km){ÛVr¶ gámh … àmW©Zm nÌ (Oê$ar H$m‘ Ho$

{bE)V¥Vr¶ gámh … XmohamB© (nyd© ‘ܶ gÌ)MVwW© gámh … nyd© ‘ܶ gÌ (23-07-18 go 28-07-18)

AJñV 2018àW‘ gámh … nmR>-6 (‘waJm Am¡a bmo‘‹S>r) ì¶mH$aU … nmR>-6 (qbJ ~Xbmo){ÛVr¶ gámh … lwVboI (‘mÌmE± Amo go A§),

nmR>-7 (dMZ)V¥Vr¶ gámh … nmR>-7 ({VVbr) ì¶mH$aU … nmR> 8 (gd©Zm‘)MVwW© gámh … XmohamB© (nmR> 1 go 4) ì¶mH$aU (nmR>1 go 4)

{gVå~a 2018àW‘ gámh … XmohamB© (‘ܶ gÌ narjm) ‘ܶ gÌ narjm (12 {gVå~a go 26 {gVå~a)

A³Vy~a 2018àW‘ gámh … nmR>-8 (gw{Z{Y ~mOma JB©) ì¶mH$aU … nmR>-9 ({deofU){ÛVr¶ gámh … nmR>-9 (hmobr h¡) ì¶mH$aU nmR> 10 ({H«$¶m)V¥Vr¶ gámh … lwVboI d eãXm| go dm³¶ ~ZmAmoMVwW© gámh … àmW©Zm nÌ … {ddmh ‘| OmZo hoVy

Nw>Q²>Q>r Ho$ {bE

Zdå~a 2018àW‘ gámh … nmR>-11 ({M{‹S>¶m amZr)

{ZYm©[aV nmR²>¶ nwñVH$ …{ZHw§$O qhXr nmR>‘mbm (Jmo¶b ~«Xg©)

H$m°aS>modm … gwJ‘ qhXr ì¶mH$aU

Aà¡b 2018àW‘ gámh … ñda, 춧OZ, ‘mÌmE±, ~mahI‹S>r{ÛVr¶ gámh … ~mahI‹S>r d ‘mÌmAm| H$m ghr

CƒmaU&V¥Vr¶ gámh … nmR>-1 (h‘ h¢ ZÝho dra {gnmhr) ì¶mH$aU… nmR>-1 ^mfm (dMZ ~Xbmo, qbJ ~Xbmo)MVwW© gámh … àmW©Zm nÌ …- ~r‘mar Ho$ {bE

AdH$me hoVy& nmR>-2 … amKdZ gwYa J¶m& ì¶mH$aU … nmR>-2 (dU©,

dU©‘mbm)

‘B© 2018àW‘ gámh … nmR>-3 (R>rH$ g‘¶) ì¶mH$aU … {dbmo‘ eãX, nmR>-3

(‘mÌmE±){ÛVr¶ gámh … nmR>-4 (‘moa) ì¶mH$aU … {Z~§Y - ‘oar ‘m±V¥Vr¶ gámh … {JZVr (eãXmo ‘|) 1 go 20 ì¶mH$aU… nmR>-4 (eãX Am¡a

dm³¶)MVwW© gámh … {Z~§Y - ‘oam {‘Ì eãXm| go dm³¶ ~ZmAmo&

III&IVWeek:-PracticalTest

February2019

RevisionforFullSyllabus

March2019

AnnualExam

Subject-Hindi

ì¶mH$aU … nmR>-11 ({dbmo‘ eãX){ÛVr¶ d V¥Vr¶ gámh … XmohamB© (nmR> 8 go 10) ì¶mH$aU nmR> 9 d 10MVwW© gámh … nmoñQ> ‘ܶ gÌ (26 Zdå~a go 1 {Xgå~a)

{Xgå~a 2018àW‘ gámh … nmR>-12 (MVwa Myhm) ì¶mH$aU … nmR>-12 (AZoH$ eãXm| Ho$ {bE EH$ eãX) {Z~§Y … ‘oam {dX²¶mb¶{ÛVr¶ gámh … nmR>-13 (gmoM ahr Jw{‹S>¶m amZr) ì¶mH$aU… nmR>-13 (g‘mZ AW©

dmbo eãX)V¥Vr¶ gámh … nmR>-14 (AZmoIo g§Xoe) ì¶mH$aU … nmR>-14 d 15 ({JZVr, {XZ Am¡a ‘hrZo)MVwW© gámh … ì¶mH$aU … nmR>-16 (H$hmZr-߶mgm H$m¡Am)

OZdar 2019àW‘ d {ÛVr¶ gámh … erVH$mbrZ AdH$meV¥Vr¶ gámh … nÌ… OÝ‘{XZ na AnZo {‘Ì H$mo

{Z‘§ÌU nÌ& ì¶mH$aU … nmR>-17 ({Z~Y§

bIo Z)MVwW© gámh … ì¶mH$aU … nmR>-18 ({MÌ dU©Z) {Z~§Y - ‘oao {nVm Or

’$adar 2019nmR²>¶ nwñVH$ d ì¶mH$aU H$s XmohamB©

‘mM© 2019gÌr¶ narjm

Subject-Art&Craft

PrescribedBook

Art&Craft(Eduzone)

April2018

I&IIWeek:- Basicart,Crab,HutDown

II&IVWeek:-Page3to6anddrawand

Colour'Tree'

May2018

IWeek:- PageNo.7and8

IIWeek:- PageNo.9and10

IIIWeek:- Drawandcolours'Hut'.

IVWeek:- PageNo.11to12

June2018

SummerVacations

July2018

IWeek:- PracticeforHutandtree&

PageNo.3to12

IIWeek:- PageNo.13and14

SYLLABUS

nyd© ‘ܶ gÌ… nmR>1 go 4 VH$ ì¶mH$aU … nmR> 1 go 4 VH$‘ܶ gÌ… nmR> 1 go 7 VH$ ì¶mH$aU … nmR> 1 go 7 {Z~§Y d àmW©Zm nÌ&nmoñQ> ‘ܶ gÌ … nmR> 8 go 10 VH$ nmR> 9 go 10 VH$ (qbJ, dMZ, {dbmo‘, g§km, gd©Zm‘)dm{f©H$ narjm … nmR >1 go 14 ì¶mH$aU nmR> 1 go 15 {Z~§Y, H$hmZr d àmW©Zm nÌ&

IIIWeek:- PageNo.15and16

IVWeek:- PreMidTermExam

(23Julyto28July)

August2018

IWeek:- PageNo.17and18

IIWeek:- Drawandcolour

'Umbrella'

IIIWeek:- PageNo.19and20

IVWeek:- PageNo.21and22

September2018

IWeek:- Drawandcolour

'Submarine'

II&IIIWeek:-PageNo.23and24

IVWeek:- MidTermExam

(12Sep.to26Sep.)

October2018

IWeek:- PageNo.25and26

IIWeek:- PageNO.27and28

IIIWeek:- Drawandcolour'Kite'

IVWeek:- PageNo.29and30

November2018

IWeek:- DrawandColour'Cake'

IIWeek:- PageNo.31to33

IIIWeek:- PageNo.34

IVWeek:- PostMidTermExam

(26Nov.to1Dec.)

December2018

IWeek:- PageNo.35and36

IIWeek:- PageNo.37and38

IIIWeek:- DrawandColour

(Ice-Cream)

IVWeek:- PageNo.39and40

Subject-Aptitude

PrescribedBook

KnowYourAptitude(GoyalBrothers)

April2018

Unit1:- MatchingAssignment

(1to3)

May2018

Unit1:- MatchingAssignment

(4to6)

June2018

SummerVacations

July2018

Unit2:- SortingAssignment

(7to11)

PreMidExam

(23Julyto28July)

August2018

Unit2:- SortingAssignment(12to16)

Unit3:- Classi�icationAssignment(17)

September2018

Unit3:- Classi�icationAssignment

(18&19)

January2019

I&IIWeek:- Winterbreak(Tentative)

III&IVWeek:-Revisionoffullsyllabus

anddrawandcolourfruit

basket.

February2019

RevisionofAnnualExam

March2019

AnnualExam

Unit4:- OrderingAssignment

(20&21)

MidTermExam:

(12Sept.to26Sept.2018)

October2018

Unit4:- OrderingAssignment(22)

Unit5:- PatternsAssignment

(23to26)

November2018

Unit5:- PatternsAssignment

(27to29)

Unit6:- ShadowsAssignment

(30to31)

PostMidTermExam:

(26Nov.to1Dec.2018)

December2018

Unit7:- FilesAssignment(32)

Unit8:- QuantitativeQuiz

Assignment(33)

January2019

Unit8:- QuantitativeQuiz

Assignment(34and35)

February2019

Revisionforannualexam

March2019

AnnualExam

April2018

IWeek:- Vegetablesnameand

�lowersname

IIWeek:- Games,FoodItems,Partsof

BodyandSpicesName.

IIIWeek:- Ch.1(AboutMe)

Activity:(ToKnowabout

thegrowthofhuman,

animalsandplants)

IVWeek:- Ch.2(MyFamily)

Activity:Drawafamilytree

andnamethem.

May2018

IWeek:- Ch.3(Funwiththefamily)

Activity:Toknowaboutthe

outdoorandindoorgames

IIWeek:- Ch-4Growingup

Activity:Page19

IIIWeek:- Ch-5Howourbodyworks

Activity:Differentfunction

ofoursenseorgans.

IVWeek:- Testyourself-1

June2018

(SummerVacations)

July2018

IWeek:- Ch.-6(Foodweeat)

Activity:Makeachartof

bodybuilding,energygiving

andprotectivefood.

Subject-EVS

PrescribedBookFundamentalStudies(Cordova)

IIWeek:- Ch.-7(Weallneedwater)

Activity:Pastethepicture

ofsourcesofwaterinscrap

book.

IIIWeek:- RevisionofExam

IVWeek:- PreTermExam

(23to28July)

August2018

IWeek:- Ch.8(Houseswelivein)

Activity:Collectandpastethe

pictureofdifferenttypesof

house.

IIWeek:- Ch.9(SweetHome)

Activity:CollectandPaste

thepictureofvariousthings

usedtokeepthehouse

clean.

IIIWeek:- Ch.10,Testyourself-2

(Usefulanimals)

Activity:Pastethepictures

ofthingswhichwegetfrom

animals.

IVWeek:- Ch.11,ModelTestPaper-1

PlantKingdom

Activity:Collectandpaste

differenttypesofleavesin

scrapbook.

September2018

IWeek:- RevisionofExam

IIIII&IVWeek:-

Midtermexam

(12Sept.to28Sept.2018)

October2018

IWeek:- Ch.12(Peopleatwork)

Activity:Collectandpaste

thepictureofpeoplewho

helpus.

IIWeek:- Ch.13(Ourfestivals)

Activity:Discusshow

variousfestivalsare

celebrated.

IIIWeek:- Ch.14(Goodfoodhabits)

Activity:Makeachartof

goodfoodhabits.

IVWeek:- Ch.-15(SafetyHabits)

Activity:Discussionabout

theimportanceof

cleanliness.

November2018

IWeek:- Ch.16(Seasons)

Activity:Collectpictureof

varioustypesofweather

(summer,winterandrainy

season)andpastethemin

formofacollege.

IIWeek:- Ch.-17,Testyouself-3

(Theclotheswewear)

Activity:Collectpicturesof

variousclotheswewearsin

seasons.

IIIWeek:- RevisionofExam

IVWeek:- PostMidTermExam

26thNov.to1stDec.

December2018

IWeek:- Ch.18

(StoryofClothMaking)

Activity:PageNo.88

IIWeek:- Ch.19(MeansofTransport)

Activity:Collectpicturesof

differentmeansoftransport

andpastetheminscrap

book

IIIWeek:- Ch.-20(locatingaplace)

(Learnthedirectionsby

facingthesun)

IVWeek:- Ch.-21,Thinkandanswer

(Ourearth)

Activity:Drawthesolar

systemonachartpaperand

colourit.

January2019

I&IIWeek:- WinterBreak

IIIWeek:- ModelTestPaper-2

IVWeek:- RevisionofCh.-18,19,20

February2019

Revisionforannualexam

March2019

AnnualExam

Syllabus

PreMidTerm:- Ch.1to5

MidTerm:- Ch.6to11

PostMidTerm:- Ch.12to16

AnnualExam:- Ch.1to21