Suspend classes on very hot days: education officialStudents walk under strong sunlight in Pathumwan district. (Bangkok Post file photo)The secretary-general of the Basic Education Commission is advising school management to suspend onsite teaching on extremely hot days. On extremely hot days, school management should suspend outdoor activities and supply sufficient drinking water. Also, they could suspend onsite classrooms and implement online classes instead, Mr Thanu said. Climate expert Assoc Prof Seree Supratid wrote on Facebook that due to global warming, the hottest period in Bangkok could increase from 17 days to 80 days each year, from March to May.