The trainer's hand is pulled toward delayed trainee's hand and the trainee's hand is pulled toward delayed trainer's hand. That causes instability. The most important point of teaching task is to teach trainer's movement to trainee. We propose following force presentation for compensation of time delay. For the trainee, pulling force toward delayed trainer's hand is presented.
Trainer can check trainee's movement by visual feedback.
However the trainer must keep in mind that there is time delay. These force plays role like viscosity or friction force to the trainer. The trainer can't move the hand so quickly. Performance test of cooperative work in time delay. The environment of experiment As a usability test of this method, we examined repositioning task of virtual objects.