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Solving word problems is an area where elementary students overwhelmingly display difficulties. Master Math Word Problems can help sharpen skills through practice.
The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral.
Flash card style addition and subtraction practice for elementary students.
rcb is an application tool that displays resistor color codes and values. It also comes with a tutorial video.
Graphing software for scientists, engineers, and students. It features multiple scaling types, including linear, logarithmic, and probability scales, as well as several special purpose XY graphs and contour plots of 3D data.
