Rich tasks, collaborative work, number talks, problem-based learning, direct instruction. with so many possible approaches, how do we know which ones work the best? In Visible Learning for Mathematics, six acclaimed educators assert it's not about which one-it's about when-and show you how to design high-impact instruction so all students demonstrate more than a year's worth of mathematics learning for a year spent in school. | Visible Learning For Mathematics Grades K-12 by John Hattie, Paperback | Indigo Chapters