"Intermediate Workbook, Fourth edition" includes the "Headway iChecker" with Unit tests for students to assess their progress and focus their home study on key areas for improvement. Also with MP3 Workbook audio, and quick links to extra practice, games, and exam practice online.

Unit 1
- Tenses
- Auxiliary Verbs
- Pronunciation
- Vocabulary
- Prepositions
- Listening

Unit 2
- Present tenses
- Adverbs
- Pronunciation
- Present simple and Continuous
- States and activities
- Present Passive
- Vocabulary
- Phrasal Verbs
- Listening

Unit 3
- Past Tenses
- Past Simple and Continuous
- Past Passive
- Love on the Tube
- Vocabulary
- Prepositions
- Pronunciation
- Listening

Unit 4
- Modal and related verbs
- Obligation
- Permission and ability
- Obligation and permission
- Phrasal verbs
- Listening
- Vocabulary Revision

Unit 5
- Future forms
- will
- going to
- will or going to
- Present Continuous
- Expressing the Future
- may/might/could for possibility
- All future forms
- Prepositions
- Listening
, etc.