Can pupils respect 'teacher on wheels'?

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Wireless, remote conferencing has become something of a growth area, with some developers even experimenting with robots to add physical element to the proceedings.

On show at Mobile World Congress in Barcelona this year was a simple type of robot designed to allow teachers to educate from long-distance, harnessing wireless technology.

The 'Skype-enabled' telepresence robot, designed to work with most major tablets, is called MantaroBot and is made by TeleMe.

The BBC's Rory Cellan-Jones watched a demonstration by Ronda Zelezny-Green, who teaches at Royal Holloway, University College of London, and Andrew Parker, a director of Connected Experiences at the GSMA, the body which runs Mobile World Congress.

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