Discusses ways that calculators and computer microworlds, such as LOGO and Shape Makers, can be used as tools for exploration, problem solving, and empowerment in school mathematics. Includes suggestions for classroom activities. (Contains 12 references.) (MKR)

Reviews two software packages; "Block It, An Instructional Game" and "Conquering Whole Numbers." The first is a simulation game which uses graphic representation of base-ten blocks to reinforce place value and regrouping. The second package is designed to give students in grades three through six practice in computation. (PK)

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…

Suggests that a solution to the problem of expensive educational software may be found in public domain software. Included are a definition of public domain software, a discussion of the kinds of software that are in the public domain, ways to obtain such software, and a list of some examples. (PK)