Crypto-gram words puzzle 2.1 Overview

Words perception speed reading training. Adjust reading speed for maximum enjoyment. Ability to concentrate on the problem is one of the constituent parts of the successful mental work.

Maze Book provides an endless supply of computer generated mazes for kids. With three levels of difficulty, kids can find the level of challenge that is right for them. Unlike paper and pencil mazes, Maze Book is interactive!

Calculator for vectors, matrices, complex numbers, coordinates, intersections and function plotting. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated.