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(_c_) _Exercises in Graphic Language_, which a.n.a.lyse the sounds of speech and cause them to be repeated separately in several ways: that is, when the child learns the separate letters of the alphabet and when he composes or writes words, repeating their sounds which he translates separately into composed or written speech;
(_d_) _Gymnastic Exercises_, which comprise, as we have seen, both _respiratory exercises_ and those of _articulation_.
I believe that in the schools of the future the conception will disappear which is beginning to-day of "_correcting in the elementary schools_" the defects of language; and will be replaced by the more rational one of _avoiding them by caring for the development of language_ in the "Children's Houses"; that is, in the very age in which language is being established in the child.
CHAPTER XIX
TEACHING OF NUMERATION; INTRODUCTION TO ARITHMETIC
Children of three years already know how to count as far as two or three when they enter our schools. They therefore _very easily_ learn numeration, which consists _in counting objects_. A dozen different ways may serve toward this end, and daily life presents many opportunities; when the mother says, for instance, "There are two b.u.t.tons missing from your ap.r.o.n," or "We need three more plates at table."
One of the first means used by me, is that of counting with money. I obtain _new_ money, and if it were possible I should have good reproductions made in cardboard. I have seen such money used in a school for deficients in London.
The _making of change_ is a form of numeration so attractive as to hold the attention of the child. I present the one, two, and four centime pieces and the children, in this way learn to count to _ten_.
No form of instruction is more _practical_ than that tending to make children familiar with the coins in common use, and no exercise is more useful than that of making change. It is so closely related to daily life that it interests all children intensely.
Having taught numeration in this empiric mode, I pa.s.s to more methodical exercises, having as didactic material one of the sets of blocks already used in the education of the senses; namely, the series of ten rods heretofore used for the teaching of length. The shortest of these rods corresponds to a decimetre, the longest to a metre, while the intervening rods are divided into sections a decimetre in length. The sections are painted alternately red and blue.
[Ill.u.s.tration]
Some day, when a child has arranged the rods, placing them in order of length, we have him count the red and blue signs, beginning with the smallest piece; that is, _one_; one, two; one, two, three, etc., always going back to one in the counting of each rod, and starting from the side A. We then have him name the single rods from the shortest to the longest, according to the total number of the sections which each contains, touching the rods at the sides B, on which side the stair ascends. This results in the same numeration as when we counted the longest rod--1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Wishing to know the number of rods, we count them from the side A and the same numeration results; 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. This correspondence of the three sides of the triangle causes the child to verify his knowledge and as the exercise interests him he repeats it many times.
We now unite to the exercises in _numeration_ the earlier, sensory exercises in which the child recognised the long and short rods. Having mixed the rods upon a carpet, the directress selects one, and showing it to the child, has him count the sections; for example, 5. She then asks him to give her the one next in length. He selects it _by his eye_, and the directress has him _verify_ his choice by _placing the two pieces side by side and by counting their sections_. Such exercises may be repeated in great variety and through them the child learns to a.s.sign a _particular name to each one of the pieces in the long stair_. We may now call them piece number one; piece number two, etc., and finally, for brevity, may speak of them in the lessons as one, two, three, etc.
THE NUMBERS AS REPRESENTED BY THE GRAPHIC SIGNS
At this point, if the child already knows how to write, we may present the figures cut in sandpaper and mounted upon cards. In presenting these, the method is the same used in teaching the letters. "This is one." "This is two." "Give me one." "Give me two." "What _number_ is this?" The child traces the number with his finger as he did the letters.
_Exercises with Numbers._ a.s.sociation of the graphic sign with the quant.i.ty.
I have designed two trays each divided into five little compartments. At the back of each compartment may be placed a card bearing a figure. The figures in the first tray should be 0, 1, 2, 3, 4, and in the second, 5, 6, 7, 8, 9.
The exercise is obvious; it consists in placing within the compartments a number of objects corresponding to the figure indicated upon the card at the back of the compartment. We give the children various objects in order to vary the lesson, but chiefly make use of large wooden pegs so shaped that they will not roll off the desk. We place a number of these before the child whose part is to arrange them in their places, one peg corresponding to the card marked one, etc. When he has finished he takes his tray to the directress that she may verify his work.
_The Lesson on Zero._ We wait until the child, pointing to the compartment containing the card marked zero, asks, "And what must I put in here?" We then reply, "Nothing; zero is nothing." But often this is not enough. It is necessary to make the child _feel_ what we mean by _nothing_. To this end we make use of little games which vastly entertain the children. I stand among them, and turning to one of them who has already used this material, I say, "Come, dear, come to me _zero_ times." The child almost always comes to me, and then runs back to his place. "But, my boy, you came _one_ time, and I told you to come _zero_ times." Then he begins to wonder. "But what must I do, then?"
"Nothing; zero is nothing." "But how shall I do nothing?" "Don't do anything. You must sit still. You must not come at all, not any times.
Zero times. No times at all." I repeat these exercises until the children understand, and they are then, immensely amused at remaining quiet when I call to them to come to me zero times, or to throw me zero kisses. They themselves often cry out, "Zero is nothing! Zero is nothing!"
EXERCISES FOR THE MEMORY OF NUMBERS
When the children recognise the written figure, and when this figure signifies to them the numerical value, I give them the following exercise:
I cut the figures from old calendars and mount them upon slips of paper which are then folded and dropped into a box. The children draw out the slips, carry them still folded, to their seats, where they look at them and refold them, _conserving the secret_. Then, one by one, or in groups, these children (who are naturally the oldest ones in the cla.s.s) go to the large table of the directress where groups of various small objects have been placed. Each one selects _the quant.i.ty_ of objects corresponding to the number he has drawn. The number, meanwhile, has been left _at the child's place_, a slip of paper mysteriously folded.
The child, therefore, must _remember_ his number not only during the movements which he makes in coming and going, but while he collects his pieces, counting them one by one. The directress may here make interesting individual observations upon the number memory.
When the child has gathered up his objects he arranges them upon his own table, in columns of two, and if the number is uneven, he places the odd piece at the bottom and between the last two objects. The arrangement of the pieces is therefore as follows:--
o o o o o o o o o o X XX XX XX XX XX XX XX XX XX X XX XX XX XX XX XX XX X XX XX XX XX XX X XX XX XX X XX
The crosses represent the objects, while the circle stands for the folded slip containing the figure. Having arranged his objects, the child awaits the verification. The directress comes, opens the slip, reads the number, and counts the pieces.
When we first played this game it often happened that the children took _more objects_ than were called for upon the card, and this was not always because they did not remember the number, but arose from a mania for the having the greatest number of objects. A little of that instinctive greediness, which is common to primitive and uncultured man.
The directress seeks to explain to the children that it is useless to have all those things upon the desk, and that the point of the game lies in taking the exact number of objects called for.
Little by little they enter into this idea, but not so easily as one might suppose. It is a real effort of self-denial which holds the child within the set limit, and makes him take, for example, only two of the objects placed at his disposal, while he sees others taking more. I therefore consider this game more an exercise of will power than of numeration. The child who has the _zero_, should not move from his place when he sees all his companions rising and taking freely of the objects which are inaccessible to him. Many times zero falls to the lot of a child who knows how to count perfectly, and who would experience great pleasure in acc.u.mulating and arranging a fine group of objects in the proper order upon his table, and in awaiting with security the teacher's verification.
It is most interesting to study the expressions upon the faces of those who possess zero. The individual differences which result are almost a revelation of the "character" of each one. Some remain impa.s.sive, a.s.suming a bold front in order to hide the pain of the disappointment; others show this disappointment by involuntary gestures. Still others cannot hide the smile which is called forth by the singular situation in which they find themselves, and which will make their friends curious.
There are little ones who follow every movement of their companions with a look of desire, almost of envy, while others show instant acceptance of the situation. No less interesting are the expressions with which they confess to the holding of the zero, when asked during the verification, "and you, you haven't taken anything?" "I have zero." "It is zero." These are the usual words, but the expressive face, the tone of the voice, show widely varying sentiments. Rare, indeed, are those who seem to give with pleasure the explanation of an extraordinary fact.
The greater number either look unhappy or merely resigned.
We therefore give lessons upon the meaning of the game, saying, "It is hard to keep the zero secret. Fold the paper tightly and don't let it slip away. It is the most difficult of all." Indeed, after awhile, the very difficulty of remaining quiet appeals to the children, and when they open the slip marked zero it can be seen that they are content to keep the secret.
ADDITION AND SUBTRACTION FROM ONE TO TWENTY: MULTIPLICATION AND DIVISION
The didactic material which we use for the teaching of the first arithmetical operations is the same already used for numeration; that is, the rods graduated as to length which, arranged on the scale of the metre, contain the first idea of the decimal system.
The rods, as I have said, have come to be called by the numbers which they represent; one, two, three, etc. They are arranged in order of length, which is also in order of numeration.
The first exercise consists in trying to put the shorter pieces together in such a way as to form tens. The most simple way of doing this is to take successively the shortest rods, from one up, and place them at the end of the corresponding long rods from nine down. This may be accompanied by the commands, "Take one and add it to nine; take two and add it to eight; take three and add it to seven; take four and add it to six." In this way we make four rods equal to ten. There remains the five, but, turning this upon its head (in the long sense), it pa.s.ses from one end of the ten to the other, and thus makes clear the fact that two times five makes ten.
These exercises are repeated and little by little the child is taught the more technical language; nine plus one equals ten, eight plus two equals ten, seven plus three equals ten, six plus four equals ten, and for the five, which remains, two times five equals ten. At last, if he can write, we teach the signs _plus_ and _equals_ and _times_. Then this is what we see in the neat note-books of our little ones:
9 + 1 = 10 8 + 2 = 10 5 2 = 10 7 + 3 = 10 6 + 4 = 10
When all this is well learned and has been put upon the paper with great pleasure by the children, we call their attention to the work which is done when the pieces grouped together to form tens are taken apart, and put back in their original positions. From the ten last formed we take away four and six remains; from the next we take away three and seven remains; from the next, two and eight remains; from the last, we take away one and nine remains. Speaking of this properly we say, ten less four equals six; ten less three equals seven; ten less two equals eight; ten less one equals nine.
In regard to the remaining five, it is the half of ten, and by cutting the long rod in two, that is dividing ten by two, we would have five; ten divided by two equals five. The written record of all this reads:
10 - 4 = 6 10 - 3 = 7 10 2 = 5 10 - 2 = 8 10 - 1 = 9
Once the children have mastered this exercise they multiply it spontaneously. Can we make three in two ways? We place the one after the two and then write, in order that we may remember what we have done, 2 + 1 = 3. Can we make two rods equal to number four? 3 + 1 = 4, and 4 - 3 = 1; 4 - 1 = 3. Rod number two in its relation to rod number four is treated as was five in relation to ten; that is, we turn it over and show that it is contained in four exactly two times: 4 2 = 2; 2 2 = 4. Another problem: let us see with how many rods we can play this same game. We can do it with three and six; and with four and eight; that is,
2 2 = 4 3 2 = 6 4 2 = 8 5 2 = 10 10 2 = 5 8 2 = 4 6 2 = 3 4 2 = 2
At this point we find that the cubes with which we played the number memory games are of help:
2 4 6 8 10 X X X XX X X XX X X XX X X XX X X X X X XX X X XX X X XX X X X X X XX X X XX X X X X X XX X X X X X
From this arrangement, one sees at once which are the numbers which can be divided by two--all those which have not an odd cube at the bottom.
These are the even numbers, because they can be arranged in pairs, two by two; and the division by two is easy, all that is necessary being to separate the two lines of twos that stand one under the other. Counting the cubes of each file we have the quotient. To recompose the primitive number we need only rea.s.semble the two files thus 2 3 = 6. All this is not difficult for children of five years.