manipulative /(?)/

ma·nip·u·la·tive

manipulative

a.
  1. Of or pertaining to manipulation; performed by manipulation.
  2. Prone to attempt to influence others by devious or subtle psychological means, in order to induce them to do what one wants.

manipulative

n.
  1. Any object given to children to encourage them to learn by manipulating physical objects; applied especially to solid objects of varying geometrical shape that can be fit together to form larger aggregates. (Education)