An algorithm for multiplying natural numbers is described. The algorithm provides a chance for some unusual drill and might serve as an enrichment topic. (MK)

Described is an activity that categorizes a two-digit number as "sneaky" if the continued process of taking the difference of the squares of its digits leads to a difference of zero. Other categorizations are determined by whether the difference process ends in a one-digit number or continues in a loop of numbers. (MDH)

This article discusses the classroom use of discovery of number pattern. Provided are examples of a table of squares, multiplications of numbers, and algebraic expressions. (YP)

This handbook is intended to provide mathematics curriculum leaders and supervisors with discussion and related activities central to a presentation of algebra for teachers of students with a history of lower academic achievement and who are part of our underserved populations. The handbook: (1) deals with general algebra activities; (2) focuses…