Excerpt from Laboratory Lessons in General Science
This set of laboratory exercises in general science is an outgrowth of courses given by the author in methods of teaching secondary school sciences. Some of the lessons represent the combined efforts of a class upon an assigned topic, but so reshaped that credit to any individual is out of question. Free use has been made of material from the author's Lessons in Astronomy Chemistry Nature Study and Physics - manuals prepared for his own class work. Many of the exercises have enough material for more than one lesson, and should be subdivided to suit teaching conditions.
The preparation of these lessons was stimulated by the belief that one chief cause of failure to get desired results with beginning classes in the high school sciences lay in the character of the material chosen. It was believed possible to bring together from scattered sources that which would appeal to beginners and which would find its unity in their life experiences and interests. This involved the rejection of much material of great worth from the differentiated high school sciences that is unsuited for an elementary course. Teachers subject to the exactions of schoolroom service do not have the time to make selections of material and properly to relate and adapt them for use.
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