With deepest thanks to Juan Manuel Carrillo, there are Spanish translations of both Active Prelude and Active Calculus (Single).
For Active Prelude, see https://juansito717.github.io/prep/frontmatter.html.
For Active Calculus (Single), see https://calculoactivo.len-tecs.com/frontmatter.html.
If anyone is aware of other translations of the text, please share those with me (boelkinm at gvsu dot edu) and I’ll post them here.
