Lesson plan: Refraction without a practical activity

This lesson plan allows you to deliver the key points of refraction without your class working on ray boxes, blocks, prisms etc.
The lesson plan has some key questions to answer at turning points of the lesson so that you can check understanding.
All you have to do is tailor a powerpoint with images readily available from the web.
It just depends on what prior knowledge the students have and what type of equipment they may already be familiar with.

Intended for students aged 14-16 doing GCSE level learning of properties of light and waves