Starts by using an video clip to demonstrate the process of the area of the two smaller squares being equal to the larger two squares. Then uses cloze procedure to quickly give the formal definition. Teaches the process using square add square root for hypotenuse. Some of the questions where orginally taken from https://www.tes.com/teaching-resource/gcse-introducing-pythagoras-theorem-lesson-6208261 but have been significantly reworked. On this page however there is also an excellent group work activity that could be used with the lesson.

Based on the CGP new revision guide by CGP for the edexcel iGCSE. I have catergorised the topics for higher and foundation into a checklist. Grades are according to CGP revision guide. Any feedback welcome.