Each of the four workbooks provides over 100 exercises on different aspects of English grammar that secondary students have to understand well. Although the workbooks are intended to accompany the Student Book, they can also be used with whatever grammar texts teachers decide to use.
   

UNIT 1 Nouns: Subject of Verb, Object of Verb and Object
of Preposition
UNIT 2 Nouns: Common Nouns and Proper Nouns
UNIT 3 Nouns: Concrete Nouns and Abstract Nouns
UNIT 4 Nouns: Gender
UNIT 5 Personal Pronouns and Reflexive Pronouns
UNIT 6 Pronouns and Determiners (1)
UNIT 7 Pronouns and Determiners (2)
UNIT 8 Pronouns and Determiners (3)
UNIT 9 Definite and Indefinite Articles
UNIT 10 Adjective Endings
Etc.

Anne Seaton is an Oxford graduate and a former senior editor with W & R Chambers of Edinburgh. She has worked extensively on publications for Learners Publishing, including Understanding Spelling and English Grammar for Students.
A graduate of Edinburgh University

Betty Kirkpatrick has had a long and distinguished career as editor, publisher and writer of English reference books. She now writes mainly for Learners Publishing, authoring books that include Thematic Vocabulary 1 and 2, Everyday Idioms and Social Expressions.