A Civic Biology, Presented in Problems. George W. Hunter

A Civic Biology, Presented in Problems - George W. Hunter


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       George W. Hunter

      A Civic Biology, Presented in Problems

      Published by Good Press, 2019

       [email protected]

      EAN 4064066121341

       FOREWORD TO TEACHERS

       A CIVIC BIOLOGY

       I. THE GENERAL PROBLEM—SOME REASONS FOR THE STUDY OF BIOLOGY

       II. THE ENVIRONMENT OF PLANTS AND ANIMALS

       III. THE INTERRELATIONS OF PLANTS AND ANIMALS

       IV. THE FUNCTIONS AND COMPOSITION OF LIVING THINGS

       V. PLANT GROWTH AND NUTRITION. CAUSES OF GROWTH

       VI. THE ORGANS OF NUTRITION IN PLANTS—THE SOIL AND ITS RELATION TO THE ROOTS

       VII. PLANT GROWTH AND NUTRITION—PLANTS MAKE FOOD

       VIII. PLANT GROWTH AND NUTRITION—THE CIRCULATION AND FINAL USES OF FOOD BY PLANTS

       IX. OUR FORESTS, THEIR USES AND THE NECESSITY FOR THEIR PROTECTION

       X. THE ECONOMIC RELATION OF GREEN PLANTS TO MAN

       XI. PLANTS WITHOUT CHLOROPHYLL IN THEIR RELATION TO MAN

       XII. THE RELATIONS OF PLANTS TO ANIMALS

       XIII. SINGLE-CELLED ANIMALS CONSIDERED AS ORGANISMS

       XIV. DIVISION OF LABOR. THE VARIOUS FORMS OF PLANTS AND ANIMALS

       XV. THE ECONOMIC IMPORTANCE OF ANIMALS

       XVI. THE FISH AND FROG, AN INTRODUCTORY STUDY OF VERTEBRATES

       XVII. HEREDITY, VARIATION, PLANT AND ANIMAL BREEDING

       XVIII. THE HUMAN MACHINE AND ITS NEEDS

       XIX. FOODS AND DIETARIES

       XX. DIGESTION AND ABSORPTION

       XXI. THE BLOOD AND ITS CIRCULATION

       XXII. RESPIRATION AND EXCRETION

       XXIII. BODY CONTROL AND HABIT FORMATION

       XXIV. MAN'S IMPROVEMENT OF HIS ENVIRONMENT

       XXV. SOME GREAT NAMES IN BIOLOGY

       APPENDIX

       WEIGHTS, MEASURES, AND TEMPERATURES

       INDEX

       Table of Contents

      A course in biology given to beginners in the secondary school should have certain aims. These aims must be determined to a degree, first, by the capabilities of the pupils, second, by their native interests, and, third, by the environment of the pupils.

      The boy or girl of average ability upon admission to the secondary school is not a thinking individual. The training given up to this time, with but rare exceptions, has been in the forming of simple concepts. These concepts have been reached didactically and empirically. Drill and memory work have been the pedagogic vehicles. Even the elementary science work given has resulted at the best in an interpretation of some of the common factors in the pupil's environment, and a widening of the meaning of some of his concepts. Therefore, the first science of the secondary school, elementary biology, should be primarily the vehicle by which the child is taught to solve problems and to think straight in so doing. No other subject is more capable of logical development. No subject is more vital because of its relation to the vital things in the life of the child. A series of experiments and demonstrations, discussed and applied as definite concrete problems which have arisen within the child's horizon, will develop power in thinking more surely than any other subject in the first year of the secondary school.

      But in our eagerness to develop the power of logical thinking we must not lose sight of the previous training of our pupil. Up to this time the method of induction, that handmaiden of logical thought, has been almost unknown. Concepts have been formed deductively by a series of comparisons. All concepts have been handed down by the authority of the teacher or the text; the inductive search for the unknown is as yet a closed book. It is unwise, then, to directly introduce the pupil to the method of induction with a series of printed directions which, though definite in the mind of the teacher because of his wider horizon, mean little or nothing as a definite problem to the pupil. The child must be brought to the appreciation of the problem through the deductive method, by a comparison of the future problem with some definite concrete experience within his own field of vision. Then by the inductive experiment, still led by a series of oral questions, he comes to the real end of the experiment, the conclusion, with the true spirit of the investigator. The result is tested in the light of past experiment and a generalization is formed which means something to the pupil.

      For the above reason the laboratory problems, which naturally precede the textbook work, should be separated from the subject matter of the text. A textbook in biology should serve to verify the student's observations made in the laboratory, it should round out his concept or generalization by adding such material as he cannot readily observe


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