Hi my name is Andrea and today I teach to make 3d origami
First we have to have a sheet with the following measures: 

21.6 cm x 28 cm. (letter size) 

After the sheet was folded in 32 equal parts

By cutting each line will get the 32 small rectangles which will fold as follows:

Here I leave a video of how to make the pieces

http://www.youtube.com/watch?v=I33tYbBEIrc

Some figures you can do

                         

Chick

 Lion

Tigger and eeyore

Macaw

                         

Eye of horus

 Bear

 Chopper

Owl