Looks at what the problems are in the use of quantities and units in chemistry and what has been achieved until this time. Considers quantity and amount of substance, quotients of physical quantities, composition of mixed phases, and equations with quantities. Makes recommendations for future considerations. (CW)

Presents International Standard (SI) units for the field of electrochemistry and magnetochemistry. (SL)

Compares the effectiveness of three instructional modes for teaching metric knowledge and raising the level of positive metric attitudes of preservice elementary teachers who include both high and low mathematics achievers. Similar gain scores and attitudes resulted from the three randomly assigned treatment groups of preservice teachers (N=141).…

These materials were designed to be used by life science students for instruction in the application of physical theory to ecosystem operation. Most modules contain computer programs which are built around a particular application of a physical process. The module is concerned with conventional techniques such as concepts of measurement,…