Each chapter of this book consists of three parts. The first part is the essence and summary of the learning contents. The second part is featured and progress examples. The third part is exercises. Exercises are arranged in foundation questions, advanced questions, and challenging questions. Examples and questions that are more challenging are denoted with an asterisk sign (*).

A unit test is attached to each chapter. It is useful for students to review the chapter contents and to prepare for their school tests. Each test covers all the chapter contents and consists of two parts: multiple choices and conventional questions.

This book includes a Solutions or Instructions booklet. It gives supplementary materials to the main text, analyses and summarises certain examples. It also shows the detailed solutions to several selected questions. It provides a reference for students and give instructions for parents to guide their children.