This manual designed to provide the teacher with methods of understanding the computer and its potential in the classroom includes four units with exercises and an answer sheet. Unit 1 covers computer fundamentals, the mini computer, programming languages, an introduction to BASIC, and control instructions. Variable names and constants described in Unit 2 include the LET instruction, GO TO statement, IF--THEN statement, and INPUT instruction. READ and DATA statements, summing and counting, functions, and the FOR and NEXT statements are covered in Unit 3, while Unit 4 includes defining a function--DEF, subscripted variables, subroutines--GOSUB, and graphing--TAB function. Control commands, error messages, editing, and flow charting are described in the appendices, as well as the"mailbox analogy," which illustrates the operation of the digital computer. (JEG)