Having already completed the CBT (Compulsory Basic Training) course and motorbike theory test and hazard perception test, MOD 1 is the off-road module and assesses riders manual handling of a bike, slow control steering, U-turn, cornering and emergency stop, hazard avoidance and controlled stop. You can see a demonstration video of the test below.
With only one minor fault (control on the slow ride) and more than enough speed through the emergency stop and hazard avoidance exercises, I passed with ease. Next test is the MOD 2 test or practical on-road riding. Scary!