A curve fitting program: Lorentzian, Sine, Exponential & Power series are available models to match your data. A Lorentzian series is recommended for real data especially for multiple peaked data. Another improved productivity example.
VisualStat is a major integrated development environment for R. It incorporates all the descriptive statistics, parametric and nonparametric statistical methods, charts and data transforms you will need for analyzing and presenting data.
Math Science Quest is a fun way to learn the fundamental reasoning skills that are the essence of scientific method. It can be played as an individual puzzle or a multi-player game. Players explore a complex mathematical puzzles finding solutions.