20 email spanish lesson course subjects (repost)

Important: This is not for the actual lessons, this is for the lesson topics. I'll be either posting the assignment to write the articles on here when I receive them, or assigning them to someone I've worked with before. Now to the project: I'd like a list of 20 progressive spanish lesson topics on any aspect of Spanish. I'd like the list to start with something relatively simple, and get progressively more difficult, but still in the beginner to intermediate stage. Again, this project is not for the lessons themselves, but for descriptions of the lessons. They need to be descriptive enough that a skilled Spanish teacher would be able to immediately get started writing the lesson. If this isn't clear, please post questions and I'll do my best to clarify. Also, if you'd be interested in writing these articles, let me know, but remember that you're only bidding on the lesson plan here. Note: I expect this to be completed within 5 days (AT MOST) of selection. If you can't fulfill this requirement, please do not bid. I will hold strictly to this.