Syllabus for Spanish for native speakers (one year course). No textbook used. Resources can easily be found online. The syllabus is a guide suggesting grammar points to be covered for each marking period and suggested reading materials; poems, plays and short stories. Two pages of links for resources are provided. Suggested level would be Intermediate Mid to Advance.
You might also be interested in the syllabus for heritage speakers that contains lower reading level stories and links to online resources to facilitate reading comprehension in heritage speakers that are not yet at a bilingual level.
Suggested level would be Intermediate Low to Intermediate Mid.
You might also be interested in the syllabus for heritage speakers: