To be able to make an accurate serve over a net into space by using the correct technique demonstrated to students

What hand do we hold the volleyball with? (non-dominant hand)
Which foot is placed forward/back for both types of serves? (same foot in relation to the arm that is holding the volleyball - underam, opposite for overhand serve)
Where is the start position for our striking hand? (by our pocket for underarm and ear for overhand)
What part of the volleyball are we making contact with (centre)
Where are our eyes looking throughout the serve? (at the volleyball + target)