This document discusses a teaching-learning material developed by Kusuma Foundation for secondary schools in Uttar Pradesh, India. The material was created with support from subject experts and is intended to be used by students, teachers, and teacher educators. It draws from existing curricula and education resources and was reviewed by a State Resource Group established by the Uttar Pradesh Madhyamik Shiksha Abhiyan. The document provides contact information for Kusuma Foundation, which believes that all children have potential and aims to facilitate increased access to education.