Carlos Thompson from The Chlewey Blog writes about the importance of teaching Maths in Colombia in relation to the poor performance the country had in international tests of quality of education :
Carlos Thompson wa blogu ya Chlewey anaandika juu ya umuhimu wa kufundisha Hesabu nchini Colombia kutokana na nchi hiyo kufanya vibaya kwenye vipimo ya kimataifa vya ubora wa elimu :