GeoGebra connects geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. This dynamic linkage between different mathematical representations allows students to ...

Enter ancient worlds, meet famous people and discover fascinating facts by exploring a wide selection of historical games and activities.

Review of A-level calculus: elementary functions and their graphs, domains and ranges, trigonometric functions ... damped), planetary motion (universal law of gravity, angular momentum, conic sections ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...