Electronic apparatus and instruments for use in teaching, and personal computing equipment for use therewith, namely, interactive electronic whiteboards and associated electronic pens used with a computer; wireless electronic graphic tablets, namely, wireless digitizer tablets; electronic graphic tablets, namely, digitizer tablets; interactive electronic flat panel display screens; computer software recorded on magnetic media or CDROM, and computer software downloadable from on-line databases, all such software for use in teaching, training and education comprising a software tool set for development and interactive presentation of presentations, lessons and lectures; computer software, namely, application software recorded on magnetic media or CD-roms that enables users to annotate directly over screen images and downloadable application software that enables users to annotate directly over screen images; computer hardware, namely, electronic tablets and wireless computer hardware used to annotate directly over screen images