Several flyers, cheat sheets and refreshers on the subject of Elementary Algebra for student in Upper Primary and Middle School fill several racks of our local bookstores. So it is natural for someone to ask the question - do we need another of its kind? This book is different - in that it brings together the conceptual side of Arithmetic, Algebra, Geometry and Trigonometry - systematically. The concepts are uncovered gradually. The gradation is gentle, yet challenging. Mathematics must become a playground for children. They must understand and explore the music in the language of numbers and symbols - the associated manipulations. This ensures that the child is motivated and stays motivated. We sincerely hope that the student is able to get a good grasp of the subject and the techniques after working with the content of this book. If the experience of going through this book is joyful for the child and works as a great tool for refreshing his / her understanding, we would be satisfied that we have met the primary objective of this effort. We believe that learning must be a fun-filled experience.