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3 produkter
3 produkter
1 091 kr
Skickas inom 7-10 vardagar
Chalk is the most important source of fresh water in North-West Europe: more than eight million cubic metres of water are pumped daily from the aquifier. This work presents an authoritative survey of the origin, sedimentology, and hydraulic properties of this unique rock, and the chemical characteristics of the water it contains. The factors influencing the flow through the chalk and its role as a hydrocarbon reservoir in the North Sea are reviewed along with the threats that industrial chemicals, fertilizers, and pesticides present to the supply. The long-term implications of pollutants in this vital resource and the continuing ignorance of the factors that control the flow of water through the rock are highlighted.
159 kr
Skickas inom 5-8 vardagar
556 kr
Skickas inom 10-15 vardagar
I have written this book to put forward a new theory of reading the cognitive clarity theory. But the book is not all theory. I have tried to show how this theory can help students, teachers and parents to improve children's education in reading at home and at school. Although the cognitive clarity theory is new, it is derived from other theories and from a wide range of educational, linguistic and psychological research. The cognitive clarity theory is thus a bringing together of the insights of many col leagues in these disciplines. What the theory owes to these colleagues is clearly acknowledged as the evidence is presented. But I must also be thankful for the experiences that have led me in this direction. I worked as a school teacher for nearly ten years before I became an experimental psychologist. During my years as a teacher I was often baffled by children's difficulties in learning to read. Then, only two or three years after qualifying in psych ology, I had the good fortune to be chosen to plan and conduct the first large scale experiment on children's reading in Britain.