In 2017 I developed some worksheets that were used in our pilot study demonstrating how PRIMM might work in lessons. These are available here for you to edit and use if they are useful. With the help of teacher feedback I found these were a bit boring if all you used were worksheets in a lesson so the next materials had Do Nows and lesson plans. So I would recommend that you carve up the worksheets and mix and match with other activities to keep programming lessons varied! All worksheets use Python 3 except the ones I adapted for Small Basic for one of our teachers.
The Maze game is based on the resource from PythonSchool.net . EasyGui is a very simple Gui (sits on top of Tkinter) which is great but a bit basic.