2024 No The effectiveness of a head-heart-hands model for natural and environmental science learning in urban schools http://dx.doi.org/10.1016/j.evalprogplan.2017.09.001 Jagannathan, Radha North America Experimental Students Elementary (K-5) Middle/Jr High (6-8) Green space Test performance Cognitive Function STEM education Experimental design Nurture thru Nature (NtN) science and math grades Using an experimental design, this study evaluated the Nurture thru Nature (NtN) program’s effect on urban students’ science/math grades and engagement. Results suggest potential for STEM gains through environmental learning integrated with hands-on outdoor education. 2017