Describes five college and two high school students' understandings of function and limit in a graphics calculator-based environment and identifies instances where students' understanding seems to have been influenced by the availability of a graphing calculator. (27 references) (MKR)

The difficulties and misconceptions that many students experience when learning to visualize graphs of functions are discussed. Specifically, the inability to make accurate connections between symbolic and graphical representations, the lack of understanding about scale and scaling, and the confusion caused by transformations are examined with…

A tissue culture experiment that does not require elaborate equipment and that can be used to teach sterile technique, the principles of animal cell line maintenance, and the concept of cell growth curves is described. The differences between cancerous and normal cells can be highlighted. The procedure is included. (KR)

Discusses a classroom presentation using a Tonka toy truck's forward and backward motion that (1) develops a graphical representation of the truck's one-dimensional motion; (2) creates graphs representing constant velocity; (3) leads students to a definition of average velocity; and (4) introduces the concept of instantaneous velocity. (MDH)

Describes a library-based instructional module for first-year athletes as part of a program motivated by accreditation agencies, public concern, and NCAA (National Collegiate Athletic Association) standards to ensure the academic success of college athletes. The development and implementation of the bibliographic instruction sessions are…

One implication of attitude self-ratings, that scales may become recalibrated transiently, was investigated conservatively using hypothesized shifts of data from 368 college students rating the desirability of taking senior comprehensive examinations. Results support the validity and reliability of simple graphic rating scales as measures of…

Explores algebraic thinking as children search for patterns while collecting, organizing, and graphing data and as they derive equations describing relationships found in the data. (ASK)

Describes the development of an Interactive Teaching and Learning Environment for Graph Sketching (ITALEGS) of polynomial graphs at the college level. Highlights include hypermedia examples, the design of questionnaires for evaluation, and enhancing effectiveness by incorporating pedagogical content knowledge in computer-assisted instruction.…

Describes the construction of an exponential decay graph that can be used in a science class to support discussions about the uses of radioactivity, its risks, limitations, and advantages. (WRM)

Demonstrates that computer-based lecture (CBL) can enhance student learning in economics courses. Addresses various tools and techniques that teachers can utilize, such as assisted notetaking and presentation materials. Considers four active, collaborative exercises that can be facilitated through CBL techniques. Includes reactions by Gisela Meyer…

Presents a brief definition and examples of residue designs while sharing some of the algebraic thought that a student used to form generalizations about the patterns discovered during the investigations of residue designs. (ASK)

U.S. mathematics education has been criticized for being too broad. This article examines ways middle school students use simple problems and situations to foster a deeper understanding of underlying concepts. Presents a sample area and perimeter problem, describes extending the problem using tiles to determine minimum perimeter, and discusses…

Argues that current approaches to computer graphing practices are ill suited to meet the complex needs of real users. Offers an overview of work in two major areas of graphing theory and research: the sociology of science and the educational research of mathematics and scientific students. Suggests what technical communicators can do to improve…

Illustrates the use of auto- and biographical materials as part of a research process concerned with problematic aspects of learning science. Draws on an extended study of graphing among university students and research scientists, and on the autobiography and interview data from one of the authors to point out some of the sources of difficulties…

This article describes an innovative lesson that uses the biography "Barbara McClintock: Alone in her Field" (Heiligman, 1994) to integrate genetics, literature, and mathematics as a context for students to investigate patterns on Indian corn. This two-day lesson requires students to estimate, collect data, identify and describe patterns,…