Perhaps the most obvious myth is that graphics calculators are mainly useful for drawing graphs of functions and hence are not relevant to most mathematics curricula. An hour or two with a modern graphics calculator will quickly dispel this myth. For example, my book, More mathematics with a graphics calculator: Casio cfx-9850G, contains sixteen chapters, only four of which are primarily concer...

Mosaic plots are state-of-the-art graphics for multivariate categor ical data in statistical visualization. Knowledge structures mathematical models that belong to the theory of knowledge spaces psychometrics. This paper presents an application mosaic psychometric arising from underlying structure models. In simulation trials and with empirical data, scope this graphing method space is investig...

background and purpose : there has been no report in which preoperative evaluation of adc for prediction of post therapeutic outcome was presented. the aim of our study was to retrospectively evaluation the use of the apparent diffusion coefficient (adc) for the prediction of malignancy and the outcome of malignant astrocytic tumors. methods: we reviewed mri of 26 male and 14 female patients wi...

background: various frequencies of sperm aneuploidy are reported in sperms of subfertile patients compared to normal individuals. moreover, sperm dna damage is shown to be associated with male infertility. in this study, the rate of dna damage and frequencies of aneuploidy in sperms of subfertile patients was investigated. methods: semen samples were obtained from healthy normal and subfertile ...

A slight anterior displacement of the lens with age was first postulated by Raeder (1922). Using a new ophthalmophakometer, he measured the positions of the anterior and posterior lens surfaces relative to the cornea. By graphing the means of the measurements within successive age groups he constructed regression lines for the position of the two lens surfaces against age, but no tests for stat...

A slight anterior displacement of the lens with age was first postulated by Raeder (1922). Using a new ophthalmophakometer, he measured the positions of the anterior and posterior lens surfaces relative to the cornea. By graphing the means of the measurements within successive age groups he constructed regression lines for the position of the two lens surfaces against age, but no tests for stat...

Triangulation involves the carejit! reviewing of data collected through different methods in order to achieve a more accurate and valid estimate of qualitative results for a particular construct. This paper describes how we used three qualitative methods of data collection to study attitudes of students toward graphing, hands-on activities, and cooperative grouping techniques using the triangul...

This study assessed the use of WatchMinder™, a vibrating prompt watch, and self-graphing on the on-task behavior of students with autism spectrum disorder in an elementary special education setting. Using a multiple baseline across subjects design, results showed an immediate increase in on-task behavior when the intervention was introduced. Participants maintained high levels of on-task behavi...