If you use IDLE when teaching Python, this extension might deal with many of the frustrations!
From Matt Harrison, here are some interesting slides that look useful for teaching young coders
https://github.com/mattharrison/ElementaryPython/blob/master/slides/week1.pdf?raw=true especially looks good
For Kids Aged 10+ (And Their Parents)
Python is a powerful, expressive programming language that’s easy to learn and fun to use! But books about learning to program in Python can be kind of dull, gray, and boring, and that’s no fun for anyone.
Python for Kids brings Python to life and brings you (and your parents) into the world of programming. The ever-patient Jason R. Briggs will guide you through the basics as you experiment with unique (and often hilarious) example programs that feature ravenous monsters, secret agents, thieving ravens, and more. New terms are defined; code is colored, dissected, and explained; and quirky, full-color illustrations keep things on the lighter side.
Chapters end with programming puzzles designed to stretch your brain and strengthen your understanding. By the end of the book you’ll have programmed two complete games: a clone of the famous Pong and “Mr. Stick Man Races for the Exit”—a platform game with jumps, animation, and much more.
Very nicely done online course. Lets you try out code online !
‘A Byte of Python’ is a free book on programming using the Python language. It serves as a tutorial or guide to the Python language for a beginner audience. If all you know about computers is how to save text files, then this is the book for you. This book is written for the latest Python 3, even though Python 2 is the commonly found version of Python today (read more about it in Python 2 versus 3 section).
Learn Python The Hard Way emphasizes precision, attention to detail, and persistence by requiring you to type each exercise (no copy-paste!) and make it run, as well as to read up on outside topics and to return to exercises and ideas that you don’t understand, and understand them. At the end of LPTHW, you’ll know the basics of coding, and be ready to move on to more challenging books. Or at least you’ll have tried something new
Emphasizes math. Includes exercise book and solution manual!
Intro to Python as an interactive online book
Another interactive online book on how to program
Run programs right from the Web site and take quizzes. It uses Python’s turtle module