Myers-Brooks Grammar School Arithmetic

Εξώφυλλο
Scott, Foresman, 1907 - 370 σελίδες
This textbook is designed to aid teachers by putting the teaching of arithmetic on a rational basis. The text has four main purposes: To present a pedagogical development of elementary mathematics as both a tool for use and as an elementary science; to use subject-matter representing real conditions; to present mathematics--its wide range and variety of uses in common affairs--to pupils to build number sense; to provide training in attacking common problems arithmetically and some power to analyze quantitative problems. Each teacher should select such topics and problems as have a particular interest for their school.
 

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Σελίδα 177 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq. yd.) 30^ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 194 - OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg...
Σελίδα 179 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 109 - Multiplying or dividing both terms of a fraction by the same number does not change its value.
Σελίδα 75 - The part of the equation which is on the left of the sign of equality is called the first member ; the part on the right of the sign of equality, the second member.
Σελίδα 177 - SURVEYOR'S SQUARE MEASURE 625 square links (sq. li.) =1 square rod sq. rd. 16 square rods =1 square chain sq. ch. 10 square chains =1 acre A. 640 acres =1 square mile sq. mi. 36 square miles (6 mi.
Σελίδα 42 - The Dividend is the number to be divided. The Divisor is the number by which we divide. The Quotient is the number of times the divisor is contained in the dividend; or one of the equal parts into which it is divided.
Σελίδα 149 - In any proportion, the product of the means equals the product of the extremes.
Σελίδα 169 - Therefore the specific gravity of a solid or a liquid body, is the ratio of its weight to the weight of an equal volume of water...
Σελίδα 40 - What is 1 ninth of 1 ? of 2? of 3 ? of 4 ? of 5 ? of 6 ? of 7 ? of 8? of 9 ? of 10 ? of- 11?

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