![Graph](/Images/screens-thumbs/2014-04-06/graph.jpg)
Graph
Make graphs of mathematical functions. (Java, disabled)
Fractals
Draw geometrical patterns. (Java, disabled)
![Ayoayo](/Images/screens-thumbs/2014-04-06/ayoayo.jpg)
Ayoayo
Play the most popular board game in Africa. (JavaScript)
![Retirement Calculator](/Images/screens-thumbs/2014-04-06/retirement-calculator.jpg)
Retirement Calculator
Use a calculator to plan your retirement. (JavaScript)
![Quizzes](/Images/screens-thumbs/2019-03-09/quizzes.jpg)
Quizzes
Take a quiz on geography, history, language, literature, music, science, mathematics, or computers.
![Environmental Survey](/Images/screens-thumbs/2014-04-06/environment-survey.jpg)
Environmental Survey
How environmentally friendly are you? Rate yourself in eight areas and see 100 ways you can help save the earth.
![Personifier](/Images/screens-thumbs/obama-128.jpg)
Personifier
Display a humorous random phrase based on a person's name (Vogl, Bush, Putin, Obama, Trump). (JavaScript)
![Draw Shapes](/Images/screens-thumbs/2019-03-09/drawshapes.jpg)
Draw Shapes
Draw and download colored patterns using a variety of geometric shapes. (JavaScript)
![Image Editor](/Images/screens-thumbs/2019-03-09/bukobart_0090a.jpg)
Image Editor
Edit and download a selected or uploaded image. (JavaScript)
Colorado History
Historical events in Colorado that occurred on today's calendar date. (JavaScript)
![Spirals](/Images/screens-thumbs/2019-03-09/spirals.jpg)
Spirals
Draw and download colorful Lissajous figures and spirographs. (JavaScript)