A photo taken on February 21, 2019, shows Peter Tabichi, a mathematics and physics teacher at Keriko Mixed Day Secondary School in Pwani Village who won the $1 million Global Teacher Prize for 2019. - Peter Tabichi, who organisers say gives away 80 percent of his monthly income to the poor, received the prize at a ceremony Saturday in Dubai.The award recognizes exceptional teachers who have made an outstanding contribution to their profession. (Photo by SULEIMAN MBATIAH / AFP)