This short PowerPoint is what I use to introduce the sentence structure to my Spanish 1 students. It includes many examples and is easy for students to follow (I strive to make very organized and properly formatted PowerPoints!). I use colored shapes to help them understand and visualize the three components of the sentence structure - a form of "ir" goes in the orange rectangle, "a" goes in the green triangle, and an infinitive goes in the purple oval. Hope you find it easy to use and effective in your Spanish classroom. Please leave feedback!