Key Words: 12b Mountain Adventure 关键词12b：山中历险 ISBN 9781409301417

　　Book 12b explores Peter and Jane's mountain adventure in 131new words, including 'goodbye', 'suggested', 'clouds' and'discussed'. Once this book has been completed, the child moves onto book 12c . The Key Words with Peter and Jane books work becauseeach of the key words is introduced gradually and repeatedfrequently. This builds confidence in children when they recognisethese key words on sight (also known as the 'look and say' methodof learning). Examples of key words are: the, one, two, he. Thereare 12 levels, each with 3 books: a, b, and c. Series a : graduallyintroduces new words. Series b : provides further practise of wordsfeatured in the 'a' series. Series c : links reading with writingand phonics. All the words that have been introduced in each 'a'and 'b' book are also reinforced in the 'c' books.