Guidance : 1.To extract the folders named after a particular chapter, first d ownload the file by clicking on the name of the chapter. (if download option is missing, go to File menu and find Download option) Thereafter, unzip or extract the folders using any zipping utility . 2. Inside t h e folders, you will find the annotated pdf of the chapter, files based on various activities from the chapter, pictures, videos, presentations and other supportive materials for the classroom transaction of that particular chapter. Note : Rate of downloading depends upon how fast your internet connection is. On Android (most of the smart phones), you may not be able to see the progress of downloading the zip file. Here, you need to remain patient. However, on a PC, you will be able to see the progress of your downloading. Use a pen drive or any other mechanism to copy the extracted folder to the smart boards installed in your school if you are not directly downloadin...