This paper reports results of a design experiment regarding young children's concepts of mass measurement. The research built on an earlier study in which a framework of "growth points" in early mathematics learning and a related, task-based, one-to-one interview to assess children's understanding of the measurement of mass…

Discusses the connection between intuition and man's senses, how the science of measurement has extended man's senses, and the close relationship of physics to the physical environment. (Author/CP)

Presents the views of a high school physics teacher toward The International System of Units (SI). (HM)

Presents the author's perspective for accepting an approximation to The International System of Units (SI). Some alternatives to the SI form are also presented. (HM)

The author describes the responsibilities of the Metrication Board in terms of the changeover to metric units. (MF)

Prompted by the widespread use of the metric system by most major industrial countries of the world, the United States Congress in 1969 initiated the passage of a bill authorizing the research and investigation of metrication to determine the worldwide impact of its use on this country so as to decide which route it should take. Data were obtained…

Discusses the relationship between the SI units and fundamental physical constants. (SL)

A meta-theoretical framework that begins with the standard system of measurement is outlined. Identification of different standard systems and elements of the measurement process provide a focus for comparisons between measurement theories and models. (SLD)

The mathematical nature of the catagories of base unit, supplementary unit, and derived unit in the SI system of measurement is explained. (SL)

Describes several developments in atomic clocks and frequency standards pointing out the feasibility and practicality in adopting a unified standard of time and frequency to replace other base standards of length, mass, and temperature. (GA)

A brief article stressing the need for care and accuracy in selecting materials to be used in teaching metrication. Caution should be taken in readability and interpretable rulings. (Author/EB)

Presents an introductory activity in the use of arbitrary measuring units, using simple materials found in school or at home. Materials are listed and activities provided. (EB)

Presents a survey of the International System of Units, usually denoted by its French abbreviation, SI (Systeme International), how it came about, and how it is likely to develop in the future. Describes SI units (base, derived, and supplementary) and new definitions for base units. (Author/SK)

A general discussion of cognitive development as it relates to measurement is presented. Suggested measurement activities are given. (MK)

Describes development of units to teach measuring skills using manipulative materials. Concepts fostered include repetition of identical units, comparison, and standardized units. Descriptions of activities on length and area and mass are given, as well as references for additional activities. (JM)