Эта книга — репринт оригинального издания, созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг. ...

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible....

The National Assessment of Educational Progress (NAEP) and the Trends in International Mathematics and Science Studies (TIMSS) are two prevalent standardized tests, and we compare the results in 4th grade mathematics between the U.S and other countries....