Rammed full of practical ideas – all of which are beautifully articulated and backed by research – this is a truly wonderful book. -Craig Barton, Author of How I Wish I'd Taught Maths I can’t recommend highly enough this very do-able and high-leverage approach to any math teacher or curriculum developer who wants to level up their task design, or just try out something new. -Kate Nowak, Former high school math teacher and currently Vice President of Product Strategy for Illustrative Mathematics