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  1. www.oecd.orgpisa › aboutpisaPISA - PISA - OECD

    PISA (Programme for International Student Assessment) is an international study which began in the year 2000. It aims to evaluate education systems worldwide by testing the skills and knowledge of 15-year-old students in participating countries/economies. Since the year 2000 over 70 countries and economies have participated in PISA. Every three ...

  2. Dec 3, 2015 · Despite various attempts to reinforce it, Pisa’s tower continued to subside at a rate of some 0.05 inches per year, placing it in increasing danger of collapse. By 1990, it was leaning 5.5 ...

  3. www.oecd.orgpisa › dataData - PISA - OECD

    The PISA database contains the full set of responses from individual students, school principals and parents. These files will be of use to statisticians and professional researchers who would like to undertake their own analysis of the PISA data. The files available on this page include background questionnaires, data files in ASCII format ...

  4. Aug 9, 2023 · The Tower of Pisa’s first foundation stone was laid on August 9, 1173, “thanks to the donation of 60 coins made by a widow named Berta, for the construction of the bell tower of our cathedral ...

  5. Feb 21, 2024 · The Leaning Tower of Pisa, known in Italian as the Torre Pendente di Pisa, is a free-standing bell tower in the Piazza dei Miracoli (“Square of Miracles”) in Pisa, Italy. The construction began in August 1173 to serve as the bell tower for Pisa’s cathedral complex. It was designed to stand 197 feet (60 meters) tall with eight stories ...

  6. Jul 21, 2021 · Leaning Tower of Pisa history. Originally construction of the Leaning Tower of Pisa was begun in 1174, with the intention of it being a freestanding bell tower for Pisa’s cathedral. Located in the Field of Miracles or ‘Campo del Miracoli’, the tower began to lean very early on in its construction, apparently around the time of the ...

  7. www.oecd.orgpisa › aboutpisaAbout - PISA - OECD

    The PISA-based Test for Schools provides school-level estimates of performance and information about the learning environment and students’ attitudes gathered from student questionnaires. Find out more and how schools and their networks can take part. PISA-VET. The PISA-VET (Vocational Education and Training) project supports countries in ...

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