Educational achievement carries more importance than ever for students to thrive in the complex, unpredictable world of the 21st century. In this second edition of the bestselling Embedded Formative Assessment, author Dylan Wiliam makes the case for the significant role of formative assessment in increasing teacher quality and student learning. Through a vast body of new research, insights, examples and formative assessment techniques, this rich resource shows Years 1–12 teachers and administrators how to positively impact student achievement.