I am about to attend interview for an AST in Numeracy post. Part of the interview process is delivering a 15 minute presentation on how an AST would raise the standards of numeracy across a family of schools. I'm after any advice people may have on how bet to tackle this task. I am particularly interested in knowing what form presentations of this sort usually take. Are they Powerpoint driven for instance? In addition, any aadvice on the content of the presentation would be most welcome. I have of course done some research and formulated some potential ideas of my own but ideas from others may reveal something obvious that I have over looked. Any help would be most welcome.