Despite the importance of computational estimation skill for the improvement of number sense, little research exists on preservice teachers' estimation skills and their view on estimation in the US context. This study examined the computational estimation skill of 58 preservice elementary teachers (PSTs) and its relationship to their views of the…

Two games and one activity designed to be used with a hand-held calculator are presented. (MK)

Describes two-line display calculators and their functions. (Author/YDS)

Presents reasons for students' use of calculators in math class and techniques for encouraging their optimal use. Many educators suggest that calculators free students from concentration on computation and enable them to concentrate on problem solving. The article includes product information. (SM)

A distinction is made between basic computational skills and skills related to applied mathematics and verbal problem solving. The advantages of using calculators for teaching the latter skills are discussed. (MP)

Five calculator activities are described that are designed to explore ordered operations. Suggestions are given on mathematical objectives, strategies for solving, and possible extensions or follow-up activities. (MP)

Six bonuses that students and teachers experience when using calculators are described. Then problem solving and creative problem-making are discussed, followed by practical suggestions for teachers who want to try calculators. Advice on personalizing the use of calculators and recognizing some of their limitations is also included. (MNS)

It is concluded: (1) elementary school students enjoy doing problems, but have trouble thinking them out; (2) students need to work on a variety of types; (3) calculator use can definitely help students become better; and (4) students need experience in group work. Details of the instructional approach used are provided. (MP)

Two separate and simultaneous studies took place in middle socioeconomic schools. A considerable degree of consistency of results in problem-solving performance with and without calculators was found in the two investigations. Calculator-using groups performed significantly higher than non-calculator groups where differences occurred. (MP)

Two posters that can provide simulated problem-solving experiences at a corner store are provided. (MK)

Discusses the Tiles and Sides problem from the December 2000 issue. Indicates that this problem is accessible to students at different grade levels. Presents samples of student responses and their teachers' analysis. (KHR)

Suggests math activities for elementary students that are designed to strengthen problem-solving, computation, and calculator skills by revolving around the real-life situation of a picnic. The article suggests designing a class project to plan and carry out a class picnic, stressing the use of mathematics and calculators. (SM)

The objective were to explore some of the ways in which the calculator can be used and to determine the effects. Areas covered are: computation, mathematics readiness, problem solving, and discovery learning. (MP)

A calculator activity, described as a bingo game, emphasizes speedy calculations as well as problem solving. (JT)

Calculators in school need not cause decline in either practical skill or mathematical understanding. And with the right curriculum materials, they can help bring about major improvements in mathematics education. (Author)