All changes from the recent National Qualification review are included in this course notes title to provide you and your students with fully relevant course support. Clear notes address the three mandatory course units and are accompanied by colour maps and diagrams to illustrate key concepts and bring the subject to life. Helpful glossaries act as a useful reference whilst Key Point boxes advise students on vital revision points to prepare for the final exam. Sample questions are also included for practice and to assess understanding whilst marked sample answers and markeri? s commentaries help students to refine their responses to raise their performance in the exam.