Teachers from Wales have been encouraged to apply for the chance to be chosen as the world’s best teacher. Nominations have now opened for the Varkey Foundation Global Teacher Prize 2017 – widely referred to as the Nobel Prize for teaching – at www.globalteacherprize.org The US$1 million award, now in its third year, is the largest prize of its kind in education.  Maine teacher Nancie Atwell won the inaugural Global Teacher Prize in 2015.  Palestinian teacher Hanan Al Hroub won…