By Helen Abadzi, Senior Education Specialist, Global Partnership for Education
Developing countries want their citizens to acquire and use complex skills, but there is much debate over the best ways to achieve this (as the 2012 Education for All Global Monitoring Report will examine). Yet specific answers do exist, and they come from cognitive science. People everywhere learn, think and make decisions using the same general cognitive rules, which outline what the average human mind can and cannot do.
Short-term memory, or working memory, holds the information that you are currently thinking of. According to some studies, it can retain only about seven items of information for only about 12 seconds. If we take too long to read, by the end of a sentence we have forgotten the beginning. So fluency is essential, whether it be in reading, writing, calculating, using a cell phone, checking electric circuits or throwing ingredients into a pot. And we must do these low-level tasks automatically, without thinking much, otherwise our working memory gets flooded and we cannot continue.
How does fluency arise? Our mind is set up to combine easily two items or movements. With practice, those chunks then get combined with two others and become one bigger chunk. With more practice, that bigger chunk gets combined with others.
But many schools in developing countries cannot give students the explicit instruction and practice needed to build long, automated chains of skills. Students often leave their mother tongue behind in grade 1 to learn reading through official languages with complex spelling systems, such as English, French, Spanish or Portuguese. Schools may waste 70% of instructional time in absenteeism and the rest in blackboard copying, since there are often few textbooks.
Teachers may interact with only the few who can keep up, while the rest stay illiterate and drop out. Even those better students (and it takes a genius to learn under these circumstances) may read only 80 words per minute in grade 10, compared with 250 for a child the same age in a developed country. At that speed, it may take five minutes just to get to the end of a page, by which time you have forgotten the beginning.











