2 Build a 3D model.

Orbiting the view
http://help.sketchup.com/en/article/94929

Panning the view
http://help.sketchup.com/en/article/94933

Zoom tool
http://help.sketchup.com/en/article/94939

Create a cube.

Draw a rectangle.

Drawing a rectangle
http://help.sketchup.com/en/article/94835
Creating precise rectangles
http://help.sketchup.com/en/article/94837

Pull the face up.

Creating a volume
http://help.sketchup.com/en/article/94888

Pushing and pulling precisely
http://help.sketchup.com/en/article/94893

Draw circles on each face.

Drawing circles
http://help.sketchup.com/en/article/94741

Apply color to the model.

Select all. (Press Ctrl+A)

Selecting multiple entities
http://help.sketchup.com/en/article/94963

Apply Black color to the entities.

Applying materials and color
http://help.sketchup.com/en/article/94956

Deselect all.(Press Ctrl + T or click on an empty space in the drawing area)

Apply white color to each face except circles.