Prime Number Calculator

Calculate the prime numbers between two limits. It uses a deterministic test and uses the Sieve of Eratophenes logic. Described on The Math Forum @ Drexel. Recommended for Middle School, High School and College, ages 6+. 99Â¢ only. Educational discount: 20%.

FRS Talking Calculator

FRS Talking Calculator is an easy to use calculator for use in elementary classrooms with several features that make it ideal for use in situations where assistive software technologies are desirable. Big buttons are easy targets for students with limited motor skills. Large type on buttons and displays makes reading the calculator easier for students with vision impairment. Voice feedback aides students with vision impairment and benefits students with some types of reading difficulties.

Mathematics on PC

Mathematics on PC will plot simple or complex mathematical functions on two- or three-axis color graphs. High school or college math students will benefit from the quick display of functions plotted on their computer, though program functionality is quite limited until you register. In the registered version, you can plot formulae in the form f(x), f(x,y), parametrics, and even calculate the area under a curve defined by a given function (first integral). In this trial version, you can experiment with the simple f(x) graphing as well as view the help, with illustrations of the more-complex plots. Simple keyboard input lets you easily enter log, trig, and exponential functions then view the plots in your choice of colors.

Animated Arithmetic

The `Animated Arithmetic CD` for Windows and Win 95 teaches addition, subtraction, multiplication and division for children from 1st through 4th grades. It provides exercises in addition and subtraction with and without regrouping. Problems can involve up to 9 digits. More than just a drill program, progressive help is given as needed to instruct the child to solve the problems. The multiplication and division problems are based on the multiplication table from 1 to 10, it teaches `mental math` in a painless way. Progressive help is given as needed when the student is having difficulty with a particular problem (not just a Wrong! response from the computer). Once ten problems are completed, the student gets to visit the game room. There are over 20 puzzles using 3D animation and sound on the registered CD ROM. The child can choose 12, 24, or 48 pieces. Hints for solving the puzzles are available, or the child can have the computer solve the puzzle and enjoy the (mostly silly) animation. There is also a maze game where the child can play mazes of varying complexity (which are rewarded with an animation when solved), or make and save their own mazes for their friends to try and solve. You can even choose to have the computer solve the maze - watching it find it's way out can be fascinating. There is over 160 Meg of animation and sound in the games on the CD!

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