The term pre-school educational intervention is very wide ranging and means different things to different people.
In practice it tends to mean any intervention which is aimed at pre-school children (between the ages of 2 and 5) and which is delivered in an educational setting (such as a nursery) or which aims to educate i.e. teach or develop, preschool children.
So some preschool interventions, such as portage, are aimed at pre-school children and their parents but actually take place in the family home.
There is a huge overlap between educational interventions and other types of intervention, especially Behavioural and Developmental Interventions and Parent Training and Support Programmes (most of which use one or more behavioural or developmental techniques).
Specific preschool interventions include
TEACCH - preschool child programme