These modules view aspects of computer use in the problem-solving process, and introduce techniques and ideas that are applicable to other modes of problem solving. The first unit looks at algorithms, flowchart language, and problem-solving steps that apply this knowledge. The second unit describes ways in which computer iteration may be used effectively in problem solving, and shows ways in which two other forms of iteration may be applied in algorithm construction. Both modules include exercises, and each has a model exam. Answers to all problems presented are provided. (MP)