Exploring the influence of teachers' beliefs and 3D printing integrated STEM instruction on students' STEM motivation. - Li Cheng; Pavlo D. Antonenko; Albert D. Ritzhaupt; Kara M. Dawson; David Miller; Bruce J. MacFadden; Claudia Grant; Tredina D. Sheppard; Michael J. Ziegler (Comput. Educ., 2020)