You do not have to worry “which part” of the syllabus any individual chapter happens to cover – you need to focus on understanding and practising the content of each such chapter and in that way you cover the full syllabus.
Understood – the structure of the chapters moves you through the syllabus in what I believe to be a structured and logical order. I hope it works for you – good luck with your studies and please use the lectures to take you through the study notes