In each block, a program of regular out-of-school work is laid down. Division masters set this work well in advance of the due data, thus encouraging boys to plan their own free time in an effective and responsible manner. Division masters keep House Masters and Tutors informed of boys' progress by providing Non-Specialists with order cards every few weeks and Specialists with interim reports in the middle of each half. In addition Trials (i.e. internal examinations) take place at the end of the Michaelmas and Summer halves; boys are examined in all their main subjects other than those in which they are being externally examined that half.