I am completely new to Hopscotch and the new computing curriculum is a little out of my league. Where do I find the accompanying lesson plans and slides?
I think you can find them here: http://hopscotch-curriculum-files.s3.amazonaws.com/Hopscotch%20Curriculum%202015.pdf. There are videos and projects in there (that are linked) that'll teach the lesson and there are lesson plans as well.
If you really want to learn some people on hopscotch offer teaching lessons.