Science & Mathematics

Teachers all over the world are teaching Mathematics in classrooms that may have students grouped by ability. Often the decision to group or not to group is made arbitrarily or because this is the way classes have always been arranged. This book will provide a valuable insight into the impact ability grouping has on the learning environments of Mathematics classrooms. The reader will gain insights into how different stakeholders in the schooling process relate to the concept of academic segregation. Information will be revealed on students? preferred learning environment and the way their attitude to mathematics can be shaped by the way their classes are grouped. Principals, heads of departments, teachers at all levels and academics who are interested in the study of learning environments may be caused to think about and even reconsider their position on the place of ability grouping in the education process.

This book has two main objectives in the eyes of the authors: To provide coordinated information about several components of the natural environment, including its biota as well as a record of the composition of the flora of the catchment of Dora Creek in the early 21st century.

During interviews preservice nurses were asked to manipulate a range of such nursing devices as syringes, drain bottles, intravenous giving sets and aspirators. They were questioned about their knowledge of aspects of fluid dynamics. They were then asked to measure the interviewer's blood pressure and asked about the pressures they observed and about their knowledge of blood flow and the function of the sphygmomanometer. They were also questioned about respiration and the function of the respirator. It was found that those who had alternative conceptions of atmospheric pressure, fluid pressure, fluid flow and equilibrium states were essentially unable to provide explanations for the function of simple nursing equipment or such physiological phenomena as blood flow, blood pressure and breathing. [from website]

This work is a photographic identification guide to Intertidal Rocky Shore Life

The reaction between ferric ion and thiocyanate ion has been understood differently throughout its 191-year history from the time JBerzelius (1779-1848) first observed the resulting deep red coloration to more recent times when sophisticated data analysis has been applied to unlock constants related to its kinetic and equilibrium behaviour. The reaction was first seriously studied in 1855 by John Hall Gladstone (1827-1902) to help resolve a controversy between the Swedish chemist, Torbern Olof Bergman (1735-1784) and the French chemist, Claude Louis Berthollet (1748-1822). Even before the concept of chemical equilibrium was understood the reaction was used in chemical analysis. Eventually its chemical equilibrium properties were harnessed by the chemistry education community to the extent that it began to appear in chemistry textbooks and laboratory manuals.

The reaction was used historically to highlight the nature of a chemical reaction and can be used to draw attention to the laws of chemistry, the models and theories of chemistry, chemical nomenclature, mathematics and data analysis, and instrumentation, which are important ingredients of what one might call the nature of chemistry. An historical investigation of this reaction helps one to determine how chemistry develops its knowledge base; how it assesses the reliability of this knowledge base; and how some important tools of the profession have been brought to bear on a chemical reaction to achieve understanding, a worthwhile goal of any historical investigation. While physics and astronomy achieved the status of exact sciences in the 17^th and 18^th centuries, it wasn’t until the 20^th century that chemistry was able to approach this status with the tools of mathematics and data analysis applied to the complex nature of a chemical reaction.

The general aim of this textbook was to provide some basic knowledge of how science works. After all, we live in a very science-oriented and techno world. We also wanted to make it easier for you to get your pupils interested in science.