9Huia 23 Haratua 2014 What we will do What we will learn Preliminaries and roll The importance of starting well Revisit refraction, starting with the glass block. What refraction is and what causes it Investigate concave and convex lenses – using Scipad page 95 What concave lenses do and why How to describe the image well Investigate convex lenses – both close and far from the object (using incandescent gas as the object) What convex lenses do and why. How to describe the imageS well. If time, Scipad pages 83, 84, 89, 91 and 94 AND set a date when Mr H can check these How to tackle test-type questions on light. See how a coin and a cup prove How to show refraction