Prior to any practical work being carried out, a risk assessment must be produced for the activity..
In addition to the various subject-specific risk assessments that are linked to in the section below, there are some some risk assessments for activities carried out specifically by technicians. These can be found here.
In addition to those above, SSERC has a large selection of Risk Assessments that technicians can use (unless your local authority stipulates an alternative method/form). Links to those in various subject areas can be found below.
It should be noted that it is NOT the job of a technician to carry out risk assessments for activities in a classroom. That is the job of the teacher.