The aim of this research is to advance in the teaching-learning process of representing quadratic functions, both with pencil and paper and with a technological tool. For this purpose, a didactic experience is presented. Firstly, it is explained in the traditional way how to graph a quadratic function; secondly, students are introduced to the…

The purpose of this case study was to examine prospective mathematics teachers' lessons in the context of choice and use of representations while teaching limit. The participants were four senior prospective mathematics teachers. The data were obtained from the participants' lessons plans, the video recordings of their lessons, and the…

This paper discusses common approaches to presenting the topic of skewness in the classroom, and explains why students need to know how to measure it. Two skewness statistics are examined: the Fisher-Pearson standardized third moment coefficient, and the Pearson 2 coefficient that compares the mean and median. The former is reported in statistical…

It is a pity that for so many people not involved in Teaching, and for a surprising number who are, mathematics in schools is "chiefly" all about the ability to know a set of facts, multiplication tables and addition bonds in particular, rather than the capacity to reason and explore patterns and relationships in Number and Shape.…

Presents ways of using different software for visualizing sampling distributions from a variety of background distributions. Random numbers are used to produce samples of given size and the mean of each is calculated. The mean and standard deviation of these means are calculated, a grouped frequency table is produced, and a histogram is generated.…

The goal of the DataSpace project is to develop a computer learning environment for data analysis and statistics and associated materials for high school mathematics. DataSpace software will provide a concrete metaphor for data, along with interactive visual explanations of statistical concepts. Users will be able to change data smoothly and…

The Appalachia Educational Laboratory (AEL) conducted an assessment of microcomputer-related needs for basic mathematics in the four-state areas of Kentucky, Tennessee, Virginia, and West Virginia in 1984-85. The primary input came from teachers from each of the states who participated in a needs conference in their home state. When each of the…

The "Curriculum and Evaluation Standards for School Mathematics (1989)" calls for the revision of existing secondary mathematics curricula which include an emphasis on contextual problems, multiple representations, and the use of computers. The focus of this revision significantly involves the acknowledgment of the key role of the…

This study was conducted to determine whether the traditional classroom approach to instruction involving the addition and subtraction of number facts (digits 0-6) is more or less effective than the traditional classroom approach plus a commercially-prepared computer game. A pretest-posttest control group design was used with two groups of first…

Describes an evaluation of the effects of the Mathematics and Science Computer Assisted Remedial Teaching (MASCART) software on students at the University of Botswana. Treatment of experimental and control groups is explained, effects on ability groups are discussed, and increased time on task and student motivation are considered. (14 references)…