Recent data have shown that up to 65% of students in Grades 4 and 8 are reading below grade level. The problem addressed in this study was that students with a high dialect density have a more difficult time with mastery of foundational skills in reading, leading to unfortunate reading mastery outcomes as they progress through school. The purpose…

We conducted a survey covering 20% of villages with 200-1000 population in rural Guinea-Bissau. We interviewed household heads, care-givers of children, and their teachers and schools. We analysed results from 9,947 children, aged 7-17, tested for literacy and numeracy competency. Only 27% of children were able to add two single digits, and just…