The_ curriculum is based on the idea that are active learners who constructs their own knowledgr from maeningful enperiences, and was developed according to the theories of

A)sociohistoric;lev vygotsky
B)emergent;maria montessori
C)direct instruction;B.F. Skinner
D)cognitively oriented;jean piaget

2 answers

It looks as if you need to read up on each person, and then you'll be able to come to a conclusion.

http://www.google.com/search?rlz=1C1GGGE_enUS350US350&aq=f&sourceid=chrome&ie=UTF-8&q=lev+vygotsky

http://www.google.com/search?hl=en&rlz=1C1GGGE_enUS350US350&q=maria+montessori&btnG=Search&aq=f&oq=&aqi=g10

http://www.google.com/search?hl=en&rlz=1C1GGGE_enUS350US350&q=b.+f.+skinner&aq=0&oq=b.+f.+&aqi=g10

http://www.google.com/search?hl=en&rlz=1C1GGGE_enUS350US350&q=jean+piaget&aq=0&oq=jean+pia&aqi=g10

Let us know what you conclude.
I'm familiar with them and this is hard to answer. I say it's a tie between Maria Montessori and Piaget, though not sure it's fair to say that Maria Montessori developed the emergent curriculum (which means that it's more child-centered).

I'd say letter "C" though because, while Montessori preceded Piaget in terms of designing such a curriculum, the "emergent" curriculum is not necessarily something that is always a constructivist idea.