Refraction Complete Lesson with worksheets and answers - GCSE - OCR, AQA, Edexcel

This is a complete lesson for teaching refraction for GCSE that I have developed over the last few years.

The powerpoint links up with the two worksheets.
The idea of worksheet 1 is that you get students to complete it before you do the practical to help pupils learn how to measure the angles of incidence and angles of refraction accurately. I have found this helps so much in reducing the cognitive load on pupils when doing this task before they move onto work sheet 2 and the refraction practical itself.

Both worksheets have answers in the powerpoints. The powerpoint also models how to measure the angles with a protractor accurately.

The lesson is also sequenced so that pupils should by the end of it be able to carry out the refraction practical, explain refraction and explain why refraction + reflection causes light to disperse into a rainbow!
I have used the lesson with a range of ability groups across year 10 and year 11 (14-16 year olds). The lesson could also be differentiated down for year 8.

I have included a pdf version of worksheet 2 as this makes it easier to print. I have also included the Microsoft Publisher version that you can edit to suit the glass/perspex blocks you teach with in your school.

Please let me know if you have any feedback as I am always looking to improve these lessons. Thanks for looking,

Simon