Armando is well known as an astronomy educator, after 30+ years leading extensive initiatives of public outreach and 10+ years teaching in colleges. As one of only a handful of Puerto Rican science communicators during Comet Halley's last visit, he assumed a pioneering role starting in 1985 when science was just beginning to enter the local mindset; over time his work brought meaningful change to the culture, inspiring people to pursue interests in science and technology. His affiliations include Ana G. Méndez University–Cupey, where in 2014 he spearheaded an 8-course extension program focusing on observational astronomy, the first ever in the island.