© Licensed to London News Pictures. 28/09/2018. LONDON, UK.  A group of six head teachers stand outside the entrance to Downing Street with a petition to be delivered to Number 11 Downing Street after hundreds of head teachers gathered at a rally in Parliament Square to demand extra funding for schools.  With a reported reduction in per student funding in real terms since 2010, members of the National Union of Head Teachers and the Association of School and College Leaders attending the rally also warn of increasing class sizes, staff cuts, and reduced subject choice.  Photo credit: Stephen Chung/LNP