Syllabus for Spanish for Heritage Speakers has suggested grammar and literature in Spanish for each marking period. Includes 7 pages for resources easily found online, links are provided. There is no need for a textbook since all resources are online.
I developed this syllabus with tons of online resources since our district did not have money to buy textbooks. There's an added plus to having all materials online, students can't use the excuse that they forgot their textbook or lost it and that's why they're not prepared for the next day in class.
Links provided are the the stories, documentaries, biographies, vocabulary flashcards and games. There are some links for the entire novel. I suggest downloading the novels quickly and saving them in a USB before the links are removed. If the links are removed by any chance, email me and I will email you the PDFs for the novels that I downloaded from the links.