American Mathematical Society leads the way in publication of high quality mathematics books for school mathematics teachers. Here are two latest examples:

Mathematical Circle Diaries, Year 1: Complete Curriculum for Grades 5 to 7

Anna Burago,Prime Factor Math Circle, Seattle, WAA co-publication of the AMS and Mathematical Sciences Research Institute.

Early middle school is a felicitous time for children to begin their mathematical circle education. Math circles expose children to the type of mathematics that stimulates development of logical thinking, creativity, analytical abilities, and mathematical reasoning — skills that, while scarcely touched upon at school, are in high demand in the modern world. This book contains everything that is needed to run a successful mathematical circle for a full year, distributed among 29 weekly lessons: detailed lectures and discussions, sets of problems with solutions, and contests and games, plus valuable know-how on the running of a circle. The book is based on the author’s extensive experience teaching math circles in the Seattle area and on the compilation of materials from these circles.

Integers, Fractions and Arithmetic: A Guide for Teachers

Judith D. Sally,Northwestern University, Evanston, IL,andPaul J. Sally, Jr.,University of Chicago, IL

A co-publication of the AMS and Mathematical Sciences Research Institute.This book, which consists of twelve interactive seminars, is a comprehensive and careful study of the fundamental topics of K – 8 arithmetic. The guide aims to help teachers understand the mathematical foundations of number theory in order to strengthen and enrich their mathematics classes. Five seminars are dedicated to fractions and decimals, and the remaining seminars cover standard topics in detail, albeit in a slightly unconventional order. The book is intended for the professional development of teachers and is appropriate for teacher education programs, as well as for enrichment programs such as Mathematical Circles for Teachers.