Listed are three activities that illustrate using a spreadsheet as a problem-solving tool and for developing an understanding of relationships between variables. Each activity includes objective, procedure, example spreadsheet, and extra challenges. (KR)

Describes the method to solve problems called T-E-M-T-T: trial, error, and modified trial through technology. The method integrates students' skills of estimation, mental computation, and appropriate choice of calculator use. Includes 2 activities for each of grades K-4 and 5-8 that illustrate the method. (MDH)

Presents two spreadsheets for middle school students applying Polya's heuristic to help develop number sense, reasoning abilities, and problem-solving skills. Spreadsheet 1, "the coin problem," allows students to vary coin quantities to total $8.32. Spreadsheet 2, "ratios," develops number relationships while finding 3 3-digit…

Presents four hands-on and computer-based activities to develop measurement skills. Students examine, measure, compare, and contrast the area, perimeter, and volume of geometric figures using concrete materials and computer spreadsheets. (MDH)