Teaching by principles is a widely acclaimed methodology text used in teacher education programs around the world. This user-friendly textbook offers a comprehensive survey of practical language teaching options, all firmly anchored in accepted principles of language learning and teaching. End-of-chapter exercise give readers opportunities to process material interactively. Suggested readings direct readers to important books and articles in the field.

This second edition of teaching by principles features :
- Information about such current topics as strategies-based instruction, form-focused instruction, and critical pedagogy and social responsibility
- Streamlined chapter organization
- A completely revised section on language assessment
- Expanded references