IN A small school on the South Side of Chicago, 40 children between the ages of five and six sit quietly learning in a classroom. In front of each of them is a computer running software called Reading Eggs. Some are reading a short story, others building sentences with words they are learning. The least advanced are capturing all the upper- and lower-case Bs that fly past in the sky. As they complete each task they move through a cartoon map that shows how far they have progressed in reading and writing. Along the way they collect eggs which they can use to buy objects in the game, such as items to furnish their avatar’s apartment. Now and then a child will be taken aside for scheduled reading periods with one of the two monitoring teachers.
The director of North Kenwood-Oakland school says this sort of teaching, blending software with human intervention, helps her pupils learn faster. It also allows teachers at this school–which, like other charter schools, is publicly funded but has some freedom to teach as it likes–to spend more time teaching and less time marking written work and leading pupils through dull drills of words and numbers. On top of that the school gains an accurate, continuous record of each child’s performance through the data its various programs collect and analyse.
As well as evidence from these schools, the effectiveness of particular bits of software has been studied. The Department of Education spent four years evaluating literacy programs; it concluded that Read 180, a program to help students who have fallen behind in reading, was good at combating adult illiteracy. A randomised control trial of Cognitive Tutor, which helps teachers identify weaknesses and strengths in maths, among 400 15-year-olds in Oklahoma found that children using the program reached the same level of proficiency as the control group in 12% less time.
Meanwhile, the Khan Academy, a creator of online tutorials widely used as a form of home tutoring, is beginning to provide hard evidence for why it is considered one of edtech’s rising stars. At Oakland Unity, in tough inner-city Oakland, test scores for 16-17-year-olds in algebra and geometry have risen significantly in the two years since Khan courses were introduced. These courses are now being adopted by the Los Altos school district, also in California, which is already one of the best-performing in America. Khan Academy pinpoints the way in which edtech can turn conventional education on its head: in its “flipped classroom” pupils are no longer given lectures in the classroom and set problems as homework, but watch instructional videos at home and work on problems in class, where teachers and peers can help them.