The competition, which was founded in 1999 to celebrate inspirational art teaching, is now the largest and most prestigious award for art in schools.
So far more than 100,000 young artists have taken part, working with their teachers as individuals or in groups, sometimes involving entire schools.
Work can be entered in three categories: working with artists, working with galleries and working with other sources. There are also special awards for motivated pupils.
In addition to receiving pound;2,000, all the winning schools and teachers will receive copies of a signed limited edition print by a well-known artist and will be invited to an awards ceremony at London's Tate Modern, where their work will be displayed.
Entries must be received by March 12. For more details and an application form see www.art-works.org.uk