54. The non-transitory computer-readable medium of claim 53 , further comprising program code for causing a computer to perform a method comprising: allowing the teacher to annotate the demonstration video feed.
53. The non-transitory computer-readable medium of claim 30 , further comprising program code for causing a computer to perform a method comprising: capturing a demonstration video feed depicting a location at which the practical skill is being performed by others; and allowing the teacher to selectively transmit the demonstration video feed to one or more of the learners for display on display screens at the respective learners' locations.