1. Barry, N.B.: The ITEEA 6E learning ByDeSIGN TM model: maximizing informed design and inquiry in the integrative STEM classroom. Technol. Eng. Teach. 73(6), 14–19 (2014)
2. Sung, C.-L., Liu, Y.-C.: A project on cultivating STEAM literacy: using 6E teaching strategy to teach elementary students to make “Simplest Electric Train.” Second. Educ. 71(1), 10–28 (2019)
3. Efklides, A., Volet, S.: Emotional experiences during learning: multiple, situated and dynamic. Learn. Instr. 15(5), 377–380 (2005). https://doi.org/10.1016/j.learninstruc.2005.07.006
4. Frenzel, A.C., Pekrun, R., Goetz, T.: Perceived learning environment and students’ emotional experiences: a multilevel analysis of mathematics classrooms. Learn. Instr. 17(5), 478–493 (2007)
5. Herschbach, D.R.: The STEM initiative: constraints and challenges. J. STEM Teach. Educ. 48(1), 96–122 (2011)