Unsolved Mysteries: Reading and Discussion for Intermediate-Level Students (Teacher's Edition)

Unsolved Mysteries is divided into ten lessons, each with the following format:
— The mystery
— A comprehension check on the reading in the form of true/false statements, multiple-choice questions and open-ended sentences.
— Language practice. This consists of a vocabulary and phrasal verb exercise which provides contextualisation and practice of some of the words and  phrasal verbs in the reading, and a grammar point used in the reading, with a brief explanation of that point as well as an exercise based on it.
— Discussion. This is a discussion of the mystery, with an opportunity to solve it.
— Writing. This final section of the lesson allows you to express your own thoughts about the mystery. You may be asked to write a letter about it or to
be a reporter writing an article for your newspaper, and so on.

As part of the language practice has to do with phrasal verbs it might be a good idea to refresh your memory as to what a phrasal verb is and how it is used: actually a phrasal verb is a ‘miniature idiom’ of two, sometimes three, words: a verb plus one or more prepositions. Like idioms, the words in a phrasal verb mean something quite different when taken together than they do individually. The words look up, when taken individually, simply mean  raise your eyes upwards. As a phrasal verb, however, these two words mean something quite different:  find information in a reference book or  visit unexpectedly. There is often very little relationship between the meaning of the individual words and their combination in a
phrasal verb. Finally, a word about the mysteries themselves. The readings here are brief and give only the information necessary for the class to have an interesting discussion. If you would like to know more about any of them, lots of books and articles have been published on all the subjects included here. There are also hundreds of other unsolved mysteries that you might want to read about, too and try to solve!