NCERT Class 9 Mathematics Textbook for Blind Students made Screen Readable by Professor T K Bansal.

This lesson is planned, organized and described by Dr. T K Bansal on September 21 2023 for visually impaired students . All efforts have been made to make the lesson fully accessible by providing headings, and tables. The lesson has been so designed that the reader should enjoy reading this lesson and should move forward without any hurdles. The lesson has been thoroughly checked for any mistakes, still if you find any mistakes or have any suggestions to make it better, please write to us at blind2visionary@gmail.com ‘. Your efforts will be highly appreciated.

“I will request the V I students to draw the diagrams on the brail sheet with the help of tactile geometry kit, which can be purchased from Saksham trust or N I B H. This kit will be a grate help to you in visualizing the subjects in future, as well”

What’s the good of Mercator’s North Poles and Equators, Tropics, Zones and Meridian Lines?’ So the Bellman would cry; and crew would reply ‘ They are merely conventional signs!’
LEWIS CARROLL, The Hunting of the Snark