The book 'New Jyothi Plus One Mathematics', under 10+2 pattern of education and VHSE, CBSE and Open School. This book is prepared strictly in accordance with the NCERT syllabus introduced for the Higher Secondary curriculum and Central Board of Secondary Examination.The book is enriched with Preview, Illustrations, Working rules, a good number of Worked out examples along with Study tips, Cautions, Summary and Solutions to NCERT Exercises. Unit test for each chapter is also included. We have taken every effort to include the graphical and picturised presentations, which would scaffold the students in making the learning process meaningful. Innovative C.E. activities are introduced in this book which would enable the students to attain curricular objectives and acquire higher mental process. A Seminar and two lab works are also included as part of continuous evaluation.