If manipulation is meant in a positive way, for example the demonstration of a procedure in lab or manipulation of certain materials, then I use both manipulation as well as motivation to teach students. Both methods I believe are of extreme importance for the student to succeed. I use motivation in praising the student if they do well, giving them the opportunity to practice as much as possible; encouraging them in any way I can. Manipulation I use by for example demonstrating the use of certain materials or procedures.
