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Tokyo - Computers do not noticeably improve school pupils' academic results and can even hamper performance, an OECD report said on Tuesday that looked at the impact of technology in classrooms across the globe.
While almost three quarters of pupils in the countries surveyed used computers at schools, the report by the Organisation for Economic Co-operation and Development found technology had made no noticeable improvement in results.
Conversely, in high-achieving schools in parts of Asia, where smartphones and computers have become an integral part of people's everyday lives, technology was far less prevalent in the classrooms.
In South Korea, students used computers for an average of nine minutes at school and in Hong Kong, only 11 minutes - just a fraction of the 58 minutes spent in Australia, 42 in Greece and 39 in Sweden.
"Where computers are used in the classroom, their impact on student performance is mixed at best," OECD's education director Andreas Schleicher said in a foreword to the report, the think-tank's first on the topic.
"Students who use computers very frequently at school do a lot worse in most learning outcomes, even after accounting for social background and student demographics."
Sophisticated software
The report measured the impact of technology use at school on international test results, such as the OECD's Pisa tests taken in dozens of countries around the world and other exams measuring digital skills.
It found that education systems which have invested heavily in information and communications technology have seen "no noticeable improvement" in results for reading, mathematics or science.
The OECD urged schools to work with teachers to turn technology into a more powerful tool in the classroom and develop more sophisticated software for experimentation and simulation, social media and games.
"The real contributions ICT can make to teaching and learning have yet to be fully realised and exploited," it concluded.
