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STEM education aims to cultivate innovative talents by improving students' ability to comprehensively apply interdisciplinary knowledge in solving practical problems. This paper first develops an innovation event model through the analysis of 50 historical innovation events that can be traced back to whole human history. The model divides the realization process of those innovation events into four steps: 1) pointing out a problem, 2) proposing solutions to the problem, 3) concretedoi:10.3934/steme.2021005 fatcat:r3mtj4zlwnhuxhlnjrsoa5hv6y