IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. From the 1950s, particularly after ...

2003 Watchlist Designed for children, Prof. Harold Video Flash Cards: Subtraction uses the same structure as the classic cardboard flash cards to teach important basic math concepts. By utilizing ...

XtraMath helps kids gain fluency in addition, subtraction, multiplication, and division. The program is conceptually similar to flash cards. Credit: Ian Moore / mashable As COVID-19 was spreading last ...

From the 1950s, particularly after the launch of the Sputnik satellite in 1958, American mathematicians and mathematics educators introduced a variety of reforms in mathematics teaching dubbed “The ...

Designed for children, Prof. Harold Video Flash Cards: Subtraction uses the same structure as the classic cardboard flash cards to teach important basic math concepts. By utilizing pause and stop ...