Cathy Humphreys (1)

This book is very helpful for teachers, especially elementary math teachers, to get started using "number talks".
Number talks are a type of math discussion in which students examine and discuss numbers, as well as strategies for computation using "mental math". These talks, which feature "open strategy sharing", help students feel more comfortable discussing math strategies, observations, errors, and thereby deepen understanding of mathematical concepts.
I found it a good companion to Intentional Talk by Elham Kazemi & Allison Hintz, a book that offers methods and examples on how to lead mathematical discussions. I recommend that "Intentional Talk" be read first, because many of the math discussion skills that Kazemi & Hintz detail in their book, (such as "open strategy sharing", "Why? Let's justify") can and should be used in number talks.… (plus d'informations)