<p>This document includes a step by step guide on how to complete the different loci and construction that can appear in the GCSE syllabus. It also includes hand drawn examples of what most of them should look like. An idea for this may be to get the students to complete their own version of this as a revision exercise or to hand this out as a revision tool.<br /> I have found that this topic is a tricky one to teach effectively so why not get them to break it down for themselves.</p>