The Teaching of Arithmetic: A Manual for Teachers |
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ability accuracy addition algebra algorism analysis answer application arith average branch of arithmetic Casting out nines cent child ciphers combinations common fractions Comparative Graph Complex fractions computation cost counting course of study decimal fractions decimal point deductive denominate numbers develop discount divide division divisor examples facts figures formulate fundamental operations give given gradation grade greatest common divisor habit hence heuristic homework illustrations inches inductive interest introduced least common multiple lems mastery mathematical measure methods of teaching metic metric system minuend mixed numbers mode multiplication multiplication tables necessary objective obtained oral parallelogram percentage practice prob problems proficiency pupils scored ratio reason reduced school course school systems short cuts solution solve speed standard standard score steps subtraction tables taught teacher teaching children teaching of arithmetic textbooks tion units variety whole numbers yards
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Page 373 - Solve as many of the following problems as you have time for; work them in order as numbered : 1. If you buy 2 tablets at 7 cents each and a book for 65 cents, how much change should you receive from a two-dollar bill?
Page 373 - How much did each receive? 12. A freight train left Albany for New York at 6 o'clock. An express left on the same track at 8 o'clock. It went at the rate of 40 miles an hour. At what time of day will it overtake the freight train if the freight train stops after it has gone 56 miles...
Page 373 - How many pencils can you buy for 50 cents at the rate of 2 for 5 cents? 5. The uniforms for a baseball nine cost $2.50 each. The shoes cost $2 a pair. What was the total cost of uniforms and shoes for the nine?
Page 373 - A girl spent one-eighth of her money for car fare, and three times as much for clothes. Half of what she had left was 80 cents. How much money did she have at first?
Page 371 - If a map 10 inches wide and 16 inches long is made on a scale of 50 miles to the inch, what is the area in square miles that the map represents? 2. The salt water which was obtained from the bottom of a mine of rock salt contained 0.08 of its weight of pure salt. What weight of salt water was it necessary to evaporate in order to obtain 3896 pounds of salt? 3. A gentleman gave away } of the books in his library, lent J of the remainder, and sold i of what was left.
Page 374 - You will be given eight minutes to find the answers to as many of these addition examples as possible. Write the answers on this paper directly underneath the examples. You are not expected to be able to do them all. You will be marked .for both speed and accuracy, but it is more important to have your answers right than to try a great many examples.
Page 349 - Do not work the following examples. Read each example through, make up your mind what operation you would use if you were going to work it, then write the name of the operation selected in the blank space after the example. Use the following abbreviations : — "Add.
Page 370 - A farmer's wife bought 2 . 75 yards of table linen at $o . 87 a yard and 16 yards of flannel at $0.55 a yard. She paid in butter at $0.27 a pound. How many pounds of butter was she obliged to give ? 8. A man and boy together spaded & of a garden.
Page 349 - Sub." for subtraction, " Mul." for multiplication, and " Div." for division. 1. The children of a school gave a sleigh-ride party. There were 9 sleighs used, and each sleigh held 30 children. How many children were there in the party? 2. Two school-girls played a number game. The score of the girl that lost was 57 points and she was beaten by 16 points. What was the score of the girl that won? 3. A girl counted the automobiles that passed a school. The total was 60 in two hours.
Page 370 - A farmer's wife bought 2.75 yards of table linen at $0.87 a yard and 16 yards of flannel at $0.55 a yard. She paid in butter at $0.27 a pound. How many pounds of butter was she obliged to give? 5. If coffee sold at 33 cents a pound gives a profit of 10 per cent, what per cent of profit would there be if it were sold at 36 cents a pound? 6. Sold steel at $27.60 a ton, with a profit of 15 per cent, and a total profit of $184.50. What quantity was sold? 7. If a woman can weave 1 inch of rag carpet a...