Understand key terminology of digital images.
Objectives of this unit:
3.1 Identify elements of the Photoshop CS5 user interface and demonstrate knowledge of their functions.
For this, I suggest reading the Help menu available in Photoshop CS5. Click on the image below to be directed to the online help menu.
You can add to a selection with any selection tool by holding down the shift key as you use that tool; you can subtract from a selection by pressing the Option (Mac) or Alt (PC) key.
http://tv.adobe.com/watch/visual-design-cs5/gs01-switching-and-saving-workspaces
3.2 Demonstrate knowledge of layers and masks.
Video by Michael Ninness, produced by lynda.com, embedded from YouTube
http://tv.adobe.com/watch/learn-photoshop-cs5/gs05-introduction-to-adjustment-layers/
3.3 Demonstrate knowledge of importing, exporting, organizing, and saving.
http://help.adobe.com/en_US/photoshop/cs/using/WSfd1234e1c4b69f30ea53e41001031ab64-794aa.html
3.4 Demonstrate knowledge of producing and reusing images.
When you make an image into a Smart Object (Layer, Smart Objects, Convert to Smart Object), any edits you make are not permanent. So if you take a large image, make it a smart object, scale it to 20% of its original size, you can still rescale it back to its original size.
3.5 Demonstrate an understanding of and select the appropriate features and options required to implement a color management workflow.
Click here to read Adobe's exam prep materials on this subject.