tractable -
easily managed (controlled or taught or molded); "tractable young minds"; "the natives...being...of an intelligent tractable disposition"- Samuel Butler
intractable not tractable; difficult to manage or mold; "an intractable disposition"; "intractable pain"; "the most intractable issue of our era"; "intractable metal"
compliant disposed or willing to comply; "children compliant with the parental will"
docile willing to be taught or led or supervised or directed; "the docile masses of an enslaved nation"
obedient dutifully complying with the commands or instructions of those in authority; "an obedient soldier"; "obedient children"; "a little man obedient to his wife"; "the obedient colonies...are heavily taxed; the refractory remain unburdened"- Edmund Burke
tamed,
tame brought from wildness; "the once inhospitable landscape is now tamed"
ductile,
malleable capable of being shaped or bent or drawn out; "ductile copper"; "malleable metals such as gold"; "they soaked the leather to made it pliable"; "pliant molten glass"; "made of highly tensile steel alloy"
teachable,
docile willing to be taught or led or supervised or directed; "the docile masses of an enslaved nation"
tractable -
readily reacting to suggestions and influences; "a responsive student"