This program includes the solving of the exercises and step-by-step lessons of the 9th high school year. This year's changes and the curriculum of the 9th high school year are presented in a step-by-step format. The exercises and lessons are divided into 9 sections, and each section is divided into 3 parts. The first part of the exercise is the easy part, and the second is the difficult part. The program includes self-test sections. It also has the solutions to all of the exercises, activities, and questions. You can also find the meaning of the lesson, as well as the attributes of each of the 9 sections. This program is intended for the use of students, teachers, and school administrators. It is also intended for the use of parents and educators who want to help their children learn mathematics.