To investigate the effect on young children's coding of spatial information, an array of boxes was varied in number, size, and arrangement and was shown to 20 toddlers. Only the number of boxes defining the left and right sides of the array influenced performance; that is, multiple boxes were associated with the use of external objects as spatial…

A multiple baseline design was used to demonstrate the effectiveness of a self-instruction training sequence across three groups of three preschool handicapped students to improve their ability to count a requested number of objects from one to ten. Eight of nine students showed improved accuracy in counting objects and generalized these gains to…

Students who discover how to count by tens starting at a number other than 10 learn about the basic structure of the decimal system in addition. (CL)

Investigates the ability of 24 children ages two, three, and four to discriminate between two small object collections on the basis of numerosity and to maintain that discrimination across changes in number-related cues. Most children learned the discrimination and transferred their learning on the basis of relational cues. (Author/CI)

A "proof" is given to show that the set of natural numbers is not countable. (DT)

Arithmetic is the science of numbers, and also the art of computation. This textbook presents mental and written arithmetic through simple numbers. [This book was written by the Brothers of the Christian Schools and published by De La Salle Institute.]

Examples of unrealistic'' mathematics and mathematical reasoning are presented and discussed. (DT)

Summarizes a survey concerning the need for statistical typists. (JS)

A digital bracelet is a cyclic sequence of digits in which each term is the units' digit of the sum of the previous "N" terms. This article discusses some properties of the digital bracelet with N=4 which starts 1, 9, 7, 1. (MM)