This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 edition. Excerpt: ... such fractions as 1/8 and 3/16 by finding the least common multiple of the denominators by short division as taught in many of the arithmetics. In such cases the following was found: Errors in subtracting common fractions. Counts found two errors which occurred very frequently in subtracting fractions having ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 edition. Excerpt: ... such fractions as 1/8 and 3/16 by finding the least common multiple of the denominators by short division as taught in many of the arithmetics. In such cases the following was found: Errors in subtracting common fractions. Counts found two errors which occurred very frequently in subtracting fractions having like denominators. (1) Numerators subtracted for the new numerator and the denominators subtracted for the denominator as 6/9--4/9 = 2/0, or 8/7--1/7 = 2/0. (2) Numerators multiplied for the new numerator and the denominators multiplied for the denominator as 6/9-4/9 = 24/81, or 3/7-1/7 = 3/49. A considerable number of pupils added when subtraction was indicated by a minus sign. This may have been due in part to the fact that both addition and subtraction were included in the same test, but the writer has found similar errors when the two operations were in separate tests. Correctives for these errors. The first essential for the correction of a defect in a pupil is the knowledge of its existence and nature. Without this knowledge attempts to correct it must be a random trying of methods and devices in hopes that some one will meet the need. Frequently the teacher who knows just what defects exist will be acquainted with some method or device which will serve as an effective corrective. If he is not, a knowledge of the laws of habit formation, which is the type of learning involved in the operations of arithmetic, will help. The laws of habit formation. Stated in psychological terms, the first law is that in the beginning the attention of the learner shall be focalized upon the habit to be acquired. In terms of schoolroom practice this means that the learner shall understand what reaction is to be made to a given stimulus, and shall then...
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Add this copy of Measuring the Results of Teaching, (Riverside Textbooks to cart. $16.99, good condition, Sold by Booksavers of Virginia rated 5.0 out of 5 stars, ships from Harrisonburg, VA, UNITED STATES, published 1918 by Houghton Mifflin.
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Seller's Description:
Good. Binding tight, pages unmarked except for name on front endpaper. Some foxing on page edges. Cover shelf worn, bumped corners. No dj. Your purchase benefits world-wide relief efforts of Mennonite Central Committee.
Add this copy of Measuring the Results of Teaching to cart. $18.00, good condition, Sold by Between the Covers-Rare Books rated 4.0 out of 5 stars, ships from Gloucester City, NJ, UNITED STATES, published 1918 by Houghton Mifflin.
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Good. Later. Good cover lightly worn, yellowing pages, name on inside cover. Please Note: This book has been transferred to Between the Covers from another database and might not be described to our usual standards. Please inquire for more detailed condition information.
Add this copy of Measuring the Results of Teaching to cart. $61.07, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
