Today I'm doing the same thing; looking for errors and trying out each panel on sugar to see if the manual is correct. The panels im trying, and reviewing are all the green panels like this;



I just tried out each green panel and the commands were correct. The panels I just tried out were

I learned that The CLEAN panel which clears the screen,

LEFT, RIGHT, BACK, and FORWARD panel moves the turtle to that direction,

The SETH panel rotates the turtle depending what number you put on the side box.

The SETXY panel makes the turtle move to a different location without leaving a color trail,

The SHOW panel allows you to write a text that shows up next to the turtle,

And the ARC panel moves and leaves a track like a protractor would, for example if you wanted
to create a circle you would use this panel to do so.

Like my screen shot.