A short set of materials is presented on loops. Three worksheets illustrate loops with paper and pencil, calculator, and computer, respectively. A computer program is given. (MP)

Solutions to difficult equations are illustrated with numerical techniques that can be used easily on calculators. Flowcharts and programs for computers and calculators are included. (MP)

Some insights are provided into techniques for removing the mystery of how calculators evaluate functions. (Author/MK)

A method of finding large primes is described. High school students can use the test using hand calculators, or by programing a computer. (SD)

A problem from number theory is used to illustrate the use of the computer and programable calculators in solving problems. Programs are included. (MP)