sentences:  He was awarded the Ashoka Fellowship in 2017 for his work.The Center for Open and Sustainable Learning (COSL) operates on the principle that "free and open access to educational opportunity is a basic human right".Because it is getting easier to develop and distribute electronic tools around the globe, COSL sees the use of learning objects as a way to bring "open education" to all areas in an effort to fulfill "a greater ethical obligation than ever before to increase the reach of opportunity".