The major purpose of this experiment was to examine the effects of format (bar graphs vs. tables) and organization (by year vs. by brand) on the speed and accuracy of extrapolation and interpolation with multiple, nonlinear trend displays. Fifty-six undergraduates enrolled in the College of Education at the University of Delaware served as the…

This volume, a reprinting of a classic first published in 1952, presents detailed discussions of 26 curves or families of curves, and 17 analytic systems of curves. For each curve the author provides a historical note, a sketch or sketches, a description of the curve, a discussion of pertinent facts, and a bibliography. Depending upon the curve,…

This study investigates relationships between differences in students' achievement and differences obtained by a technique held to yield a reasonably valid representation of students' memory structures of a particular subject matter. Also investigated was the nature of the flow of information between curriculum materials, teachers, and students.…

In this autoinstructional packet, the student is given an experimental situation which introduces him to the process of graphing. The lesson is presented for secondary school students in chemistry. Algebra I and a Del Mod System program (indicated as SE 018 020) are suggested prerequisites for the use of this program. Behavioral objectives are…

This autoinstructional program deals with experiences that will aid chemistry students at the secondary school level to determine the slope of the straight line graph relating the variables in a given set of data involving a direct relationship. Prerequisites set for this activity include three Del Mod System packets (SE 018 018, SE 018 020, and…

The purpose of this research is to evaluate the effectiveness of the area (homogeneous) scales of the Navy Vocational Interest Inventory (NVII) as predictors of Class "A" school achievement and as measures of rating differentiation by comparing specific occupational scales with more general interest measures--the NVII area scales. The…

This report presents projections of school enrollment by age, sex, and grade level to the year 2000, taking into account the latest population projections prepared by the U.S. Bureau of the Census. The figures apply to fall enrollments of the civilian noninstitutional population 5 to 34 years old in elementary school, high school, and college. The…

Examines two traditional approaches to the measurement of library service--the gathering of circulation and reference statistics--and relates them in a statistical model in an attempt to define real standards against which a library's activity can be compared. Graphs comparing reference and circulation statistics are included. (Author/JD)

This survey of the use of computer assisted instruction in schools for the deaf identified 34 systems with a total of 408 terminals, predominantly in elementary and secondary schools for the deaf; 28 of these computer systems are strictly used for CAI. (Author/JEG)

An analysis of computer-based search services (ISSs) from a system's viewpoint, using a continuous simulation model to reveal growth and stagnation of a typical system is presented, as well as an analysis of decision making for an ISS. (Author/MBR)

Some problems and classroom problem-solving settings presented in a mathematics methods course for elementary teachers are described and some results of student's involvement in the program are illustrated. (MN)

The students in a low-ability first-year classroom of a secondary school use a questionnaire and punched cards to collect and organize data about their classmates. The first five minutes and the first four minutes after the first quarter of an hour of the resulting class discussion are included. (MN)

Three activities are provided for introducing career education into the mathematics classroom as well as the rationale for doing so. (JT)

This reexamination of earlier forecasts and statistics related to research library growth--Purdue studies first published in 1965, data and forecasts from Fremont Rider's 1944 book--shows mixed results for evidence of continuing rapid growth of collections and acquisition expenditures and marked decline in acquisition rates. (16 references) (EJS)

Explains a study that proposed and tested how graphical representations influence what is learned and recalled from text. Results highlighted the importance of graph-focusing strategies for text learning and support the creative use of interactive computer presentation. (ML)