In this activity, students are given the opportunity to combine skills in math and geometry for a biology lesson in the cell cycle. Students utilize the data they collect and analyze from an online onion-root-tip activity to create a paper-plate time clock representing a 24-hour cell cycle. By dividing the paper plate into appropriate phases of…

In online educational systems we can easily collect and analyze extensive data about student learning. Current practice, however, focuses only on some aspects of these data, particularly on correctness of students answers. When a student answers incorrectly, the submitted wrong answer can give us valuable information. We provide an overview of…

Newer statistical procedures are typically introduced to help address the limitations of those already in practice or to deal with emerging research needs. Quantile regression (QR) is introduced in this paper as a relatively new methodology, which is intended to overcome some of the limitations of least squares mean regression (LMR). QR is more…

As anyone who has taught or taken a statistics course knows, statistical calculations can be tedious and error-prone, with the details of a calculation sometimes distracting students from understanding the larger concepts. Traditional statistics courses typically use scientific calculators, which can relieve some of the tedium and errors but…

Preservice elementary education students often do not have a good feel for the process of science. Many may be acquainted with the steps of the scientific method but have never been through the scientific process. An exercise was designed using temperature-logging iButtons (Thermochrons) to improve knowledge of and familiarity with the process of…

The authors describe a collection of dynamic interactive simulations for teaching and learning most of the important ideas and techniques of introductory statistics and probability. The modules cover such topics as randomness, simulations of probability experiments such as coin flipping, dice rolling and general binomial experiments, a simulation…

In this essay, the author tries to look forward into the 21st century to divine three things: (i) What skills will researchers in the future need to solve the most pressing problems? (ii) What are some of the most likely candidates to be those problems? and (iii) What are some current areas of research that seem mined out and should not distract…

This article suggests a graphic technique that uses P-P plots to show the extent to which two groups differ on two variables. It can be used even if the variables are measured in completely different, noncomparable units. The comparison is symmetric with respect to the variables and the groups. It reflects the differences between the groups over…

Provides examples in which graphs are used in the statements of problems or in their solutions as a means of testing understanding of mathematical concepts. Examples (appropriate for a beginning course in calculus and analytic geometry) include slopes of lines and curves, quadratic formula, properties of the definite integral, and others. (JN)

The two primary college admission test batteries given in Nevada are the American College Test (ACT) and the tests prepared by the College Board, the Scholastic Aptitude Test (SAT) and the Test of Standard Written English (TSWE). This report provides an overview of the tests and major trends in Nevada for 1988. These tests apply to a small portion…

The two primary college admission test batteries given in Nevada are the American College Test (ACT) and the tests of the College Board, the Scholastic Aptitude Test (SAT) and the Test of Standard Written English (TSWE). This report provides an overview of the two tests and major trends pertinent to Nevada for 1989; however, because of the small…

Eleven tables and five graphs present statistical data concerning the Tests of General Educational Development Program (GED Testing Program) in 1990. Data for each state and Canadian province are included. The tables present data on the following topics: testing volumes (i.e., number of people tested), percentage of people tested by age group,…

The Enhanced American College Test (ACT) and the Scholastic Aptitude Test (SAT) are the two primary college admission test batteries administered in Nevada. This report provides an overview of the two examinations and major trends pertinent to Nevada in 1991. These tests apply to only a portion of the high school student population, and are not…

Pennsylvania's "Testing for Essential Learning and Literacy Skills" (TELLS) program was instituted during the 1984-85 school year, to identify reading and mathematics problems early in a student's school career. This document describes the intent and legislation behind TELLS, the implementation of the test, population tested, properties…

Most use of multimedia technology in teaching and learning to date has emphasized the teaching aspect only. An application of multimedia in examinations has been neglected. This paper addresses how multimedia technology can be applied to the automatization of assessment, by proposing a prototype of a multimedia question bank, which is able to…