The assessment of needs plays a relevant role in the training for preventing of risks at work into school, as it is a scientific procedure to identify and prioritise problems existing within an educative context. This type of assessment is the starting point for a subsequent planning of the educative interventions that will enable pupils and teachers to act on potential deficiencies detected into risks of school. The present study proposes a model with practical guidelines to develop this type of educative interventions within the risk prevention area, as it will allow us to: (a) Gather reliable information about existing problems; (b) Take action to fulfil the needs of the pupils and teachers; (c) Carry out assessments, and (d) Make decisions with regard to the distribution of resources and planning of educative intervention programmes. (Contains 3 tables and 1 figure.)