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By The Drum Team, Editorial

March 23, 2011 | 1 min read

A TV advert designed to recruit new teachers has provoked ridicule after a 15 year old boy spotted a mistake in the teacher’s solution to a whiteboard maths puzzle.

Funded by the government’s Training and Development Agency for Schools the 30 sec promo showed a teacher writing “(g2)7 = g?” before penning an incorrect solution, “g2xg7”.

The correct solution to the algebraic conundrum is in fact g14 or g2 x g2 x g2 x g2 x g2 x g2 x g2.

Chris Coombs, a year 10 pupil from Bristol said: “The workings the teacher is writing would not answer the question correctly. I believe this should be amended as the advertisement is attempting to recruit potential teachers.”

The producers of the advert later explained that the teacher was deliberately demonstrating an incorrect answer and that the correct workings out were cut from the broadcast clip.