I believe that authentic resources in a language classroom is important - inasmuch as they are comprehensible. Bottom line is that students won't learn anything from something they cannot understand. To promote language acquisition, I use my leveled readers as the core of my curriculum. This upcoming year, we're going to use the Pobre Ana series along with the New LICT extended readers to form our curriculum. These contain the most important words and structures need to learn to get started, and giving them materials that they can fully understand - mostly on their own - is a powerful learning experience. In the end, Spanish is still Spanish, whether it comes from me or an "authentic" material.
Because students are learning the most common and important structures and phrases, they should be able to find them in authentic resources as well. Ultimately, students should be ready to read and listen to these resources in a comprehensible way. At first, that may include authentic stories that I present, as Kristy described:
For instance, if I want to discuss a news story, I might show my students an article or a short video about it (in Spanish). However, if the items are incomprehensible, I might use them primarily as a visual and speak about them myself in simpler language, focusing on a small amount of new vocabulary, relying on cognates, visuals, and previously-acquired vocabulary, and using very natural grammar and syntax. For higher-level classes, I might even type up an “embedded reading” in which I simplify the story for reading/discussion prior to delving in to the authentic resource.I'm lucky enough to be working in a school where students have more than the "usual" amount of Spanish instruction and will be beginning high school with already three years of daily Spanish instruction with a CI curriculum. I believe this will enable me to take the highest level classes another step forward and use authentic resources as the core of my curriculum, similar to the literature books we used in my college-level classes. Of course, this will often have some sort of scaffolding to prepare the for the structures and vocabulary used in the material. It'll be a few years before we have students at that level, but I'm very excited to see where this might lead in the years to come!