Educationist and champion of the Right to Education Act, Vinod Raina, who passed away recently, engaged tirelessly with the state even as he worked at the grass-roots level to take education to the most marginalised. While doing this, he helped to evolve child-friendly and activity-based methods of teaching science and set up the Eklavya Foundation to implement the innovations,field-tested at the micro level, on a larger scale.