This article displays the graphs of number patterns obtained by writing each number in the pattern as an ordered pair, plotting the ordered pairs, and joining consecutive points by straight lines. (DT)

Topics covered include matrices and the Fibonacci sequence, number patterns, groups, geometric arrangement of objects, games involving moving on a network, equivalent equations, and factoring. (DT)

A discussion of some number patterns which arose from a consideration of the number of diagonals of a general polygon. (MM)

A learning activity relating modular arithmetic to patterns of figures determined by points equally spaced around a circle is described. (SD)

Patterns of addends are investigated. The activity is related to Dienes' learning theory. (DT)

The observations of a fifth-grade student concerning number patterns are recorded and discussed. (SD)

Students examined patterns emerging when numbers placed at vertices in a braided pattern were summed. (SD)

Topics discussed in this column include patterns of inverse multipliers in modular arithmetic; diagrams for product sets, set intersection, and set union; function notation; patterns in the number of partitions of positive integers; and tessellations. (DT)

While repairing a sleeping bag, the author observed that the quilt stitching was unicursal. This led to development of a classroom activity relating the stitching patterns of quilts to the highest common factor of the numbers of "bumps" in each direction. (SD)

The first article describes students' activities with tiling patterns and tessellations; the second discusses the use of balances and weights as an approach to number concepts. (DT)