1. Emo, W.: Teachers’ motivations for initiating innovations. J. Educ. Chang. 16(2), 171–195 (2015). https://doi.org/10.1007/s10833-015-9243-7
2. Mooney, E.B.: Intentional teaching with technology. Math. Teach. 111(4), 264–271 (2018). https://doi.org/10.5951/mathteacher.111.4.0264
3. Kiewra, C., Veselack, E.: Playing with nature: supporting preschoolers’ creativity in natural outdoor classrooms. Int. J. Early Child. Environ. Educ. 4(1), 70–95 (2016)
4. Selly, P.B.: Teaching STEM Outdoors: Activities for Young Children. Redleaf Press, Minnesota (2017)
5. Vrba, T., Mitchell, K.: Contemporary classroom innovation: exploration. J. Instr. Pedagog. 22, 1–8 (2019)