Hailstone number checker is the perfect challenge for any brain! See if you can help solve the riddle that has puzzled math students across the world more than 20 years ago! If you are up for the ultimate brain teaser, this is for you!

This can help pet owners with many of the tedious responsibilities that go along with owning a pet. It helps you organize pet records, reminds you of vaccinations and important dates, and prints many useful pages such as Pet Sitter Instructions, Greeting Cards, Missing Posters, and more.....

Time telling... An essential skill for everyone! A skill which can be mastered with the aid of Time Flies! Time Flies is an educational tool for children & adults who are having difficulties reading analog clocks in an ever increasing digital world. The main focus of is to teach children how to quickly and properly read analog clocks as well as reading both 12 & 24 hour based digital clocks. Included are 4 activities and 3 printable worksheets.

DeadLine solves equations graphically and numerically. The freeware finds the real roots of an equation, evaluates functions and the first two derivatives extremely fast and accurately, finds extrema of the function. While there is no flawless technique for solving equations, the program combines the most successful methods in order to deliver you the right answer. No more problems on getting your homework done. Meet the DeadLine.

Learn to draw birds step by step! ABC Drawing School II is a simple to use program providing lessons for drawing birds. Easy to follow visual instructions show how to connect simple forms like circles and rectangles to complete drawings. One click selection from many colors and customizing of draw width is easy to use even for children. The Light Edition ist Freeware for unlimited use. Upgrading to the Standard Edition offers more images.

SAT Words College: This vocabulary software covers high-frequency SAT vocabulary words with engaging backgrounds and constant interactive learning situations. Studying these words improves performance on any verbal standardized test, including the ACT and GRE. Full scoring and tracking of all user responses is included. Engaging direct vocabulary instruction of words taught in context.

Cartesian coordinates, spherical coordinates und cylindrical coordinates can be transformed into each other. (5 languages, 2 and 3 dimensions)