Presents worksheets for students to practice substituting whole numbers into fairly simple symbolic expressions. (MKR)

Several subtraction algorithms are analyzed to see if they involve borrowing. The main focus is on an analysis of a procedure called the residue method. The operational arithmetic which underlies the symbolic manipulations is examined and conditions where the method does and does not use borrowing are highlighted. (MP)

These activities invite students to use mathematics to explore interesting facts about famous buildings. The investigation for grades three to four focuses on the SkyDome, a sports arena in Toronto, Canada, and the investigation for grades five to six discusses the Empire State Building in New York City. Includes reproducible student worksheets.…

Describes a pattern which emerged from an examination of the digits of the squares of numbers. Provides eight examples having the pattern at the units or tens digit of the number. (YP)

Three alternative methods of finding averages of two numbers are presented. (MP)

Presented is an activity which examines an arithmetic concept from a geometric point of view. Objectives, prerequisite learning, and procedures are discussed. Four worksheets are provided with answers. (CW)

Included are four learning activities that focus on using and interpreting data as a basis for integrating mathematics, science, and sports. Each activity includes grade level, objectives, materials, directions, answers to questions, extensions, and reproducible handouts. (KR)

One teacher's approach to the development of number sense while using calculators is outlined. The relationship between number sense and calculation is discussed. Teaching strategies and two worksheets used in this approach are presented. (CW)

Four activities are described which focus on consumer awareness and judgment using data collection and judgment skills involving data from footwear. Worksheets for data collection and activities at home and at school are included. A set of ratings of sneakers from "Consumer Reports" magazine is provided. (CW)

Discusses the changes in the scanning of food and the current use of computer technology and UPC bar codes in a grocery store and traces the history of calculating tools from the use of fingers, abacus, slide rule, calculators, and computers. Includes reproducible student activity sheets. (MKR)

An activity for grades 6-10 designed to allow students to explore a hundred chart to discover patterns is presented. Discussed are materials, objectives, and procedures. Three worksheets with answers are provided, and an extension activity is suggested. (CW)