This page includes links to recommended resources for learning Rhino.
Inside Rhinoceros 5, by Ron K.C. Cheng. This book is general in scope, not specifically focused on architectural modelmaking. It provides clear and detailed step-by-step tutorials. However, on the whole, it is probably better-suited to product designers than architects.
Although a few of the tutorials are a couple of years old, Nick Senske’s tutorials on Rhino are some of the best available for architecture students. Find a selection here: http://tinyurl.com/j8bfb29 (full link: https://www.youtube.com/watch?v=yPgMccdh8QU&list=PL4GL4fFi1e9fVRVZlB1CJB5VKwmS5e-V6)
Take a look at Nick’s tutorial on modeling in Rhino based on previously-drawn elevations and floor plans: https://www.youtube.com/watch?v=-eP39RbPYrI
The online tutorials provided by McNeel (the company that makes Rhino) are generally good, although they are not specific to architectural modeling.
Kyle Houchens has provided an hour-long tutorial focused on architectural modeling, specifically intended for students already familiar with SketchUp. An hour is a long time, but this tutorial is useful if you want to understand Rhino from this basis. The tutorial is from 2014 but the version of Rhino (v5) is still current as of late 2016.
Digital Toolbox has some very good tutorials on Rhino and Grasshopper, including one tutorial specifically focused on architectural modelmaking. Here are the Rhino links: