Latefa Mansarit of the Philip Morant school in Colchester, Essex, wins this week's box of Dubble bars for her Year 7 tutor group. She says she knows their first half-term in this 1,600-pupil school must have been daunting, but they've impressed her with their attendance and hard work. And they've raised more than pound;300 for cancer research. If your class deserves a treat, email firstname.lastname@example.org to tell us why, giving the name of your school and marking your message Dubble offer. For information on fair trade, go to www.dubble.co.uk.