Designed to improve students' thinking, learning, and creative skills while they learn to program a microcomputer in BASIC programing language, this book for intermediate learners at the high school/adult level provides a variety of microcomputer activities designed to extend the concepts taught in the accompanying instructional manuals (Volumes 3 and 4). These activities require students to apply those concepts to challenging problems which need original and creative solutions. Each activity includes introductory information; a program to enter, run, and observe; and challenges to change or use the program. Programs involve creating random numbers; using RND to represent a rolled die; using arrays to store random numbers and to store words which may then be selected randomly; calculating compound and simple interest; calculating a realtor's commission; solving equations for speed and distance; creating a quiz; displaying the alphabet; and creating words composed of randomly selected letters and storing them in an array. (Author/LMM)