I do agree with ladybird, Spartan. We definitely can take pictures from any site(is these have no copyright or if they are only for educational purposes) and yes, we get inspired from other worksheets. But what we can�t definitely do is to copy. There are lots of worksheets about the same topic but handled in so many differen ways. So don�t worry I think that apart from being teachers we have to be very creative to make our own material in a useful way.