Screenshot
A copy (snapshot) of the current board is made and copied into the clipboard. This way the current construction can be further processed as an image. The number of the screenshot is displayed in the left upper corner next to the symbol
.
More than one images created in this way can be exported as a so called slideshow. A slideshow saves these images as png-files and it can be viewed in a browser one by one.
Furthermore very elegant worksheets can be created with a word processor. Using the word processor's menu "Edit" and "Paste" inserts the 
-construction as a picture from the clipboard
See Also:
Export