You could easily reduce that ten fold, most of the slides contain little information. Every developer already knows that you can add integers, combine booleans with and, and have alternatives with if and else. Or how lists and maps work. No need to repeat this in such detail, just list the type names, keywords and operators. Instead focus on what is special about Python like indentation and colons, slicing, __iter__,…
I disagree. As a new coder when looking at a new language you don't know what's the same as what you're used to and what's different. Some things may be almost exactly the same but be slightly different. For example Python's division converts ints to floats in Python 3, for example. If you just leave out everything that's the same, the reader won't know what it's the same as.
Also, the same compared to what? C? Everyone's first language is not the same.