Hi Kerswellc. Thank you for leaving a review and I'm sorry you didn't feel the content was expanded on enough. I do agree that some of the information and activities are based on other resources available online. However, the purpose of my resource is that it has been adapted into a more scaffolded and engaging format for the students. Such as having less information presented at once, breaking the worksheet activities into sections to go through and discuss as a class, re-phrasing and organising the questions for extra clarity and adding further examples, including an additional challenge section for the Starter, and including an entire Additional Challenge section in the worksheet to encourage further research and looking at real-world applications. This lesson also has a matching Revision Lesson resource on my Dashboard, where the material was then expanded on further for a 2-hour revision session. I hope you are able to find a resource that meets your needs more than my one did.