<p>Mainly aimed at KS3 but could be easily adapted for KS4. Includes clear instructions for the refraction practical with a glass block followed by a clear diagram to help the students understand what happened during the practical. The practical instructions show equipment list and a clear diagram all on one slide so that the students can complete the practical quickly and efficiently. There is also some written consolidation work followed by some ray diagram activities to explain some common examples of refraction.</p>