EDUCATIONAL's
I'm also a teacher at KAMBIG "Centro de Estudios". I'm teach a small group of people, the basics of Autocad Classic, help them to how iniciate a drawing and modeling on 3D too. This section maybe can help you too.
DOWNLOAD's
¡Here some files that can help you to iniciate a drawing in Autocad!
Autocad Autodesk - Instruction Manual / Manual de Inicio
Autodesk Autocad - Basic's Commands / Listado de Comandos
Autodesk Autocad - Basic's Command List (Printer Version) / Lista de Comandos (Version Impresión)
VIDEO's
Here some videos to show you and help you to iniciate a drawing. ¡Take a look!, This is how I made.

3D BLOCK's
¡Here some Block's to make your work easy!
3D Computer - Computadora 3D
3D Tv LED 40" - Televisor 40" LED 3D
3D General Electric Cooking Top's - Tope de Cocina General Electric 3D
3D Hand Wash - Lavamanos 3D