Skip to main content
. 2025 Sep 12;13:940. Originally published 2024 Aug 20. [Version 4] doi: 10.12688/f1000research.154069.4

Table 1. Boolean equations.

No. Boolean equation
1 (“Science“ OR ”Natural Science“ OR ”Environmental education”) AND “democratic values”
2 (“Natural Science“ OR ”Environmental education”) AND “democratic values”
3 (“Natural Science“ OR ”Environmental education”) AND “learning” AND “democratic values”
4 (“STEM“ OR ”STEAM”) AND (“curriculum“ OR ”curricula“ OR ”education“ OR ”learning”) AND “democratic values”
5 (“Science“ OR ” Natural science“ OR ”Environmental education”) AND (“curriculum“ OR ”curricula“ OR ”learning”) AND “democratic values”