Excerpt from The Elements of Chemistry: A Text-Book for Beginners
This book is written upon much the same plan as the Briefer Course in the same series. It is, however, materially simpler in many parts, and is in every way better adapted to younger pupils. In the opinion of the author a rational course in chemistry, whether for younger or older pupils, is something more than a lot of statements of facts of more or less importance; a lot of experiments of more or less beauty; or a lot of rules devised for the purpose of enabling the pupil to tell what things are made of. If the course does not to some extent help the pupil to think as well as to see, to reason as well as to observe, it does not deserve to be called rational. Not only must the pupil perform experiments, but he must know why he performs them, and what they teach. A good plan to follow is to talk over a certain part of the subject, showing how to construct the apparatus necessary for some of the experiments, and stating in a general way what is to be learned; then to let the pupil perform the experiments with the aid of the hook and the teacher; and afterwards to make the experiments the basis for questioning. In this way the pupil will become observant, and at the same time he will discover when his experiments have been performed in the wrong way.
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