Method and apparatus for automatic annotation of recorded presentations

A computer implemented method comprising:

• using a computer including a processor and a memory to enable a first lecturer to (i) access a first tangible computer readable medium storing a presentation including slides containing content associated with a textbook, wherein each slide of the presentation stored in the first tangible computer readable medium has a unique identification (UID) that uniquely identifies the slide relative to any other slide of the presentation and is coded as part of the metadata of the slide, (ii) select one or more of the slides of the presentation for presentation during a first lecture, and (iii) present the selected slides during the first lecture;
• using the computer to register in the memory a first lecture sequence comprising (i) the UID of each of the slides presented during the first lecture and (ii) for each of the slides presented during the first lecture, a timestamp identifying a time at which said slide was presented during the first lecture;
• and
• using the computer to enable a first user to, based on the first lecture sequence, view the slides presented during the first lecture in the order in which the slides presented during the first lecture were presented;
• wherein the tangible computer readable medium additionally stores a second presentation including slides containing content associated with a second textbook, wherein each slide of the second presentation has a unique identification (UID) that uniquely identifies the slide relative to any other slide of (i) the presentation and (ii) the second presentation, and
• the method further comprises:
• using the computer to enable the first lecturer to select the presentation or the second presentation;
• using the computer to enable a second lecturer to (i) access the first tangible computer readable medium, (ii) select one or more of the slides of the presentation for presentation during a second lecture, and (iii) present the selected slides during the second lecture;
• using the computer to register in the memory a second lecture sequence comprising (i) the UID of each of the slides presented during the second lecture and (ii) for each of the slides presented during the second lecture, a timestamp identifying a time at which the slide was presented during the second lecture;
• and
• using the computer to enable a second user to, based on the second lecture sequence, view the slides presented during the second lecture in the order in which the slides presented during the second lecture were presented;
• wherein the one or more slides of the presentation selected by the first lecturer for presentation during the first lecture include a first slide, the first lecture sequence includes the UID of the first slide, the one or more slides of the presentation selected by the second lecturer for presentation during the second lecture include the first slide, and the second lecture sequence includes the UID of the first slide;
• and
• wherein the one or more slides of the presentation selected by the first lecturer for presentation during the first lecture include a second slide, the first lecture sequence includes the UID of the second slide, the one or more slides of the presentation selected by the second lecturer for presentation during the second lecture does not include the second slide, and the second lecture sequence does not include the UID of the second slide.