Principal component analysis (PCA) is one of the most important and powerful methods in chemometrics as well as in a wealth of other areas. Running a PCA results in two main elements, the score plot and the loading plot; the score plot provides the location of the samples, and the loading plot indicates correlations among variables, the trends in…

The course "Management of Fluid and Electrolyte Disorders" is an applied physiology course taught using lectures and paper-based cases. The course approaches fluid therapy from both basic science and clinical perspectives. While paper cases provide a basis for application of basic science concepts, they lack key components of genuine clinical…

This document presents an integrated unit plan on snakes targeting second grade students. Objectives of the unit include developing concepts of living things, understanding the contribution and importance of snakes to the environment, and making connections between different disciplines. The unit integrates the topic of snakes into the areas of…

Reviewed are seven computer software packages including "Frog Dissection Lab Report,""Backyard Birds,""LEGO TC Logo,""Alcohol--Four Interactive Programs,""Windows on Science--Life Science,""Climate and Weather/Our Town Database," and "Weeds to Trees." Discussed are availability, features, strengths, and weaknesses. (CW)

Presents ideas to help elementary teachers make the best use of their computer equipment. The article offers suggestions for getting started, scheduling, and selecting and introducing software. Information is included on programs that teach fractions, action art, animal attributes, writing, math, estimation, symmetry, and maps. A resource list is…

Reviewed are six computer software packages including "Invisible Bugs,""Chaos Plus...,""The Botanist's Apprentice,""A Baby is Born," Storyboard Plus-Version 2.0," and "Weather." Hardware requirements, functions, performance, and use in the classroom are discussed. (CW)

Reviewed are six computer software packages including "Lunar Greenhouse,""Dyno-Quest,""How Weather Works,""Animal Trackers,""Personal Science Laboratory," and "The Skeletal and Muscular Systems." Availability, functional, and hardware requirements are discussed. (CW)