Chld dvlpmnt nvlvs th blgcl, psychlgcl nd mtnl chngs tht ccr n hmn bngs btwn brth nd th cnclsn f dlscnc. t s—prtclrly frm brth t fv yrs— fndtn fr prsprs nd sstnbl scty.
Chldhd s dvdd nt thr stgs f lf whch ncld rly chldhd, mddl chldhd, nd lt chldhd (prdlscnc). rly chldhd typclly rngs frm nfncy t th g f 6 yrs ld. Drng ths prd, dvlpmnt s sgnfcnt, s mny f lf's mlstns hppn drng ths tm prd sch s frst wrds, lrnng t crwl, nd lrnng t wlk. Mddl chldhd/prdlscnc r gs 6–12 nvrslly mrk dstnctv prd btwn mjr dvlpmntl trnstn pnts. dlscnc s th stg f lf tht typclly strts rnd th mjr nst f pbrty, wth mrkrs sch s mnrch nd sprmrch, typclly ccrrng t 12–14 yrs f g. t hs bn dfnd s gs 10 t 24 yrs ld by th Wrld Hppnss Rprt WHR. n th crs f dvlpmnt, th ndvdl hmn prgrsss frm dpndncy t ncrsng tnmy. t s cntns prcss wth prdctbl sqnc, yt hs nq crs fr vry chld. t ds nt lwys prgrss t th sm rt nd ch stg s ffctd by th prcdng dvlpmntl xprncs. s gntc fctrs nd vnts drng prntl lf my strngly nflnc dvlpmntl chngs, gntcs nd prntl dvlpmnt slly frm prt f th stdy f chld dvlpmnt. Rltd trms ncld dvlpmntl psychlgy, rfrrng t dvlpmnt frm brth t dth, nd pdtrcs, th brnch f mdcn rltng t th cr f chldrn.
Dvlpmntl chng my ccr s rslt f gntclly cntrlld prcsss, knwn s mtrtn, r nvrnmntl fctrs nd lrnng, bt mst cmmnly nvlvs n ntrctn btwn th tw. Dvlpmnt my ls ccr s rslt f hmn ntr nd f hmn blty t lrn frm th nvrnmnt.
Thr r vrs dfntns f th prds n chld's dvlpmnt, snc ch prd s cntnm wth ndvdl dffrncs rgrdng strtng nd ndng. Sm g-rltd dvlpmnt prds wth dfnd ntrvls ncld: nwbrn (gs 0 – 2 mnths); nfnt (gs 3 – 11 mnths); tddlr (gs 1 – 2 yrs); prschlr (gs 3 – 4 yrs); schl-gd chld (gs 5 – 12 yrs); tns (gs 13 – 19 yrs); dlscnc (gs 10 - 25 yrs); cllg g (gs 18 - 25 yrs).
Prnts ply lrg rl n chld's ctvts, sclztn, nd dvlpmnt; hvng mltpl prnts cn dd stblty t chld's lf nd thrfr ncrg hlthy dvlpmnt. nthr nflntl fctr n chldrn's dvlpmnt s th qlty f thr cr. Chld-cr prgrms my b bnfcl fr chldhd dvlpmnt sch s lrnng cpblts nd scl sklls.
Th ptml dvlpmnt f chldrn s cnsdrd vtl t scty nd t s mprtnt t ndrstnd th scl, cgntv, mtnl, nd dctnl dvlpmnt f chldrn. ncrsd rsrch nd ntrst n ths fld hs rsltd n nw thrs nd strtgs, spclly wth rgrd t prctcs tht prmt dvlpmnt wthn th schl systms. Sm thrs sk t dscrb sqnc f stts tht cmps chld dvlpmnt.