The metaphor of a scaffold has been used to describe eective adult support as children work on tasks that teach culturally valued concepts and skills.
( ( ( The metaphor ) ( of ( a scaffold ) ) ) ( ( has ( been ( used ( to ( ( describe ( eective ( adult support ) ) ) ( as ( children ( work ( on ( tasks ( that ( teach ( ( ( ( culturally valued ) concepts ) and ) skills ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN metaphor)) (PP (IN of) (NP (DT a) (NN scaffold)))) (VP (VBZ has) (VP (VBN been) (VP (VBN used) (S (VP (TO to) (VP (VB describe) (NP (JJ eective) (NN adult) (NN support)) (SBAR (IN as) (S (NP (NNS children)) (VP (VBP work) (PP (IN on) (NP (NP (NNS tasks)) (SBAR (WHNP (WDT that)) (S (VP (VBP teach) (NP (NP (ADJP (RB culturally) (VBN valued)) (NNS concepts)) (CC and) (NP (NNS skills))))))))))))))))) (. .)))
Children need the benefit from adult support when working on tasks that teach culturally valued concepts and skills.
( Children ( ( ( ( need ( the benefit ) ) ( from ( adult support ) ) ) ( when ( ( working ( on ( tasks ( that ( teach culturally ) ) ) ) ) ( valued ( ( concepts and ) skills ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Children)) (VP (VBP need) (NP (DT the) (NN benefit)) (PP (IN from) (NP (JJ adult) (NN support))) (SBAR (WHADVP (WRB when)) (S (S (VP (VBG working) (PP (IN on) (NP (NP (NNS tasks)) (SBAR (WHNP (WDT that)) (S (VP (VBP teach) (ADVP (RB culturally))))))))) (VP (VBD valued) (NP (NNS concepts) (CC and) (NNS skills)))))) (. .)))