“…The third ind icator is applying mathematical patterns, with sub-indicators (a) applying mathematical patterns, (b) doing cardinality calculations, and (c) developing a settlement algorith m. The fourth indicator is mathematical proof with sub-indicators (a) doing some argument calculation, (b) doing algorith mic testing, (c) developing bijection, (d) doing testing on bijection, and (e) implementing inductive, deductive and qualitative verification. The fifth indicator is considering several other problem co mbinations, with sub-indicators (a) interpreting the problem, (b) proposing several related problems, (c) knowing the new comb ination problem, and (d) finding potential applicat ions in the solution [1] [5]. In this research, Combinatorial Thinking Skills embedded in STEM Parachute Design Activities Assisted by CCR (Cloud Classroom) we develop combinatorial thin king criteria into STEM activity according to Science, Technology, Engineering, and Mathematics section.…”