chennai supriya a class xi student at a government girls higher secondary school used to struggle with chemistry her score would be below expectations until she began learning from the new energized textbooks carrying quick response qr codes it has improved my performance in exams and i have gained confidence in learning the subject she saidsupriya isnt the only one the ease with which students are able to access quality content online has made qr codes a hit six months after the textbooks were launched for standard i vi ix and xi there have been more than 2 crore scans and over 1 crore downloads highest compared to maharashtra uttar pradesh andhra pradesh and rajasthan which have also launched these textbooksthese energized textbooks a termed coined by the school education department provide more information and contextualised content in the form of audio and video films made accessible through the codes placed below every lesson and to get more information all a student or a teacher needs to do is install the diksha app or any other external qr code scanner app this will be linked to audio video content or worksheets at the diksha repositorythe children no more fear subjects like they used to the new textbooks have brought about a change in the manner students approach subjects such as chemistry biology tamil and maths children like tamil because there is musical content said r c saraswati principal government girls higher secondary school ashok nagarofficials from the department said at least 4000 such codes had been placed in textbooks across the statethese books are used by more than 36 lakh students across the state next year we will be launching them for classes iivii x and xii said satheesh rm state coordinator diksha and digital assessmentmeanwhile a few teachers from government and private matriculation schools said codes placed in maths and biology textbooks were not working and that in some other textbooks only two or three lessons were linked officials from the department said they are looking into the complaintsthe app would have had more takers had there been more awareness authorities need to train more teachers as many are not aware of this technology said k shanmugavelayutham convener tnforceshowever officials said they have trained all teachers to use the codes before the launch