This teaching and learning guide is designed to provide practical advice and support for teachers who are delivering and assessing the key skill "Working with Others" at Levels 1-3 in schools and colleges in the United Kingdom. It is useful as an introduction to the key skill, source of teaching ideas, reference, or handbook. Section 1 defines Working with Others and what it involves and explains its value and links with other key skills. Section 2 describes how the units are arranged. It explores the cyclical process, differentiation across the levels, assessment and certification, and issues concerning and forms of evidence. Section 3 on getting started shows techniques for working with groups in schools and college, reflection, and induction and initial assessment. Section 4 focuses on helping students to develop these process skills that underpin "Working with Others": planning, setting shared targets, clarifying roles and responsibilities, and reviewing progress. Section 5 relates to helping students to develop these interpersonal skills and personal qualitites: communication skills, helping students to reflect on their behavior in meetings, working in groups, developing students' self awareness, developing empathy, and handling conflict. Section 6 describes the principles of preparing the portfolio. Appendixes include a glossary, 18 useful addresses, and an action plan form. (YLB)