The teacher will furnish other illustrations, by dividing an apple or other object, as a string, or a sheet of paper, into equal parts, before the eyes of the class. Note that or or for &c. is equal to ; that or = , &c. Lesson 6. Examples on Fractions. General Scott lost one-fourth of his army in the battles near Mexico. A tenth-part of the young men of New England were killed in King Philip's war, 1675 and 1676. Here are ten nuts. If I give Peter half, how many shall I have left? About half the deaf and dumb were born deaf, and the other half became deaf by sickness or accident. More than half the people of South Carolina are black. More than half the people of Mexico are Indians. About half the people of Canada are French. More than half the inhabitants of the earth worship idols. The quarter of an ox will make a dinner for a hundred men. Only about one-tenth of our pupils are pay pupils. When my brother married, my father gave him one-third of his farm. How many of our pupils are pay pupils ? How large a proportion of the deaf and dumb were born deaf? Let the pupil remark that all the numbers ending with 2, 4, 6, 8, 0, are even, and all the rest odd, 19 nineteen 39 59 79 99 The pupil should be frequently practiced in counting by twos, beginning now with an even, and now with an odd number. They should also be practiced in counting by threes and fives, (with real objeets,) also in counting by tens. When more advanced, they may be practiced in counting as far as 100, by fours, sixes, sevens, eights, nines, which will intro. duce them to the Multiplication Table. Lesson 8. Or. Between. Eighteen or twenty pupils are enough for a class. Some parents have four or five deaf-mute children. Quails run in flocks of fifteen or twenty. Wild horses go in herds of five or six hundred. The steam frigate Fulton blew up at the Navy Yard in 1829, and between thirty and forty persons were killed. Can you lend me three or four shillings? I have only a shilling or two. It is between three and four miles from the Institution to the City Hall. Lesson 9. Collective Nouns of Number. In Spring eggs are ten or twelve cents per dozen; but in winter they are sometimes two shillings per dozen. Mr. C. is more than four score, (years old.) |