Include the school and the parish, alongside other community organisations, in a regular cycle of prayer in both places.
Hold a monthly or half termly prayer group for parents, teachers, governors, clergy. Hold the sessions alternately in the church and the school. Alternatively, use the school in winter and the church in summer.
Invite school to ask for particular prayers to be added to the church prayer board. These can be handed over when the priest visits the school, or the school visits the church for worship.
Ensure that any global links the church parish might have are included in school prayers on a regular basis.
(see also Diocesan Collective Worship Guidelines)