Developing Number Sense, Grades 3-6

Imaginative lessons give students practice with mental computation, basic operations, navigating the number system, and estimation. Content is crafted to show that number sense is not a specific skill, but encompasses a student's ability to think and reason flexibly, make sound numerical judgments, and see numbers as useful. Both new and experienced teachers will find this book a valuable resource.

English Sound Structure

This book is as much about phonological theory as about the phonology of English. It is primarily designed as a university-level text for use on intermediate and advanced courses, but it will be of value to anyone interested in recent theoretical developments in the field.
Review 
"Harris's book is a clear introduction to current phonological views, using material drawn entirely from English, which helps a good deal to make the issues alive for the beginning student.

Getting the Message Teacher's guide for all 3 levels

A Reading Course for Schools

Getting the Message is a new three-level supplementary course designed to stimulate and extend students' skills and interest in reading. It is aimed at students from 11 or 12 to 16 years old, from elementary to intermediate level. There are ten topic-based units in each level. The topics have been carefully chosen for the appropriate age group and a wide variety of text types is covered.

Честная до последней запятой книга, которая немедленно стала классикой жанра и обязательным чтением для каждого, кто хоть в какой-то мере интересуется языками.
Парадоксальная книга, неумолимо разрушающая миф за мифом, небылицу за небылицей, заблуждение за заблуждением. Книга, освобождающая вас от пут широко распространенных застарелых заблуждений, не дающих овладеть иностранным языком. Любой, кто изучает или собирается изучать иностранный язык, просто обязан прочитать эту книгу...

Audio added Thanks to koopfish