“…Early childhood education was raised by four more documents in the current data set (Gold & Elicker, 2020;Littell & Hartman, 2017;Simoncini & Lasen, 2018;Tippett & Milford, 2017). There were other documents discussing research hotspots such as educational technology (Chedid, 2005), computing education (Schnabel et al, 2010), gender disparities/educational equity (Nelson et al, 2020;Simon et al, 2017;Subía et al, 2020;Tam et al, 2020), project-based learning (Chen & Lin, 2019;Mustafa et al, 2016), educational environment (Dolgopolovas et al, 2020;ElZomor & Youssef, 2019;Ikarashi et al, 2019;Oreshkina & Gurov, 2020;Shapovalov et al, 2019), college and career readiness (Bragg & Taylor, 2014), evidence-based teaching (Hanauer & Bauerle, 2015), curriculum (Fan & Yu, 2016;Gale et al, 2020;Hsu et al, 2019;MacDonald & Huser, 2020;Sujarwanto et al, 2021;Suwarma & Kumano, 2019), and artifacts (Ryu et al, 2019;Teo & Osborne, 2014).…”