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Table 1 Description of components within the intervention

From: Protocol for the Open Sky School: a two-arm clustered randomized controlled trial to test the effectiveness of a nature-based intervention on mental health of elementary school children

Component

Description

Expose children to nature

Children and teachers are in contact with a natural environment (park or wooden area) situated > 1 km from school grounds or on school grounds

Duration: 2 h per week for 12 weeks

Engage in activities

Teachers choose from an online toolkit of 30 mental health and pedagogical activities

Teachers are required to choose a minimum of 10 mental health activities over the course of the intervention

Duration: variable

Train and support teachers

Online video modules to train teachers in outdoor education and activities related to mental health

Duration: at teacher’s discretion

Virtual consultations between teachers and experts

Duration: up to 1 h of support weekly