The aim of 16-19 Mathematics has been to produce a course which, while challenging, is accessible and enjoyable to all students. The course develops ability and confidence in mathematics and its applications, together with an appreciation of how mathematical ideas help in the understanding of the world and society in which we live. The unit develops: * an appreciation that real numbers are a subset of complex numbers; * an understanding of the isomorphism between complex numbers and 2-dimensional vectors; * an awareness of the historical development of complex numbers; * an appreciation of the aesthetic appeal of chaotic systems; * an awareness of areas of application of complex numbers.