вторник, 1 июня 2010 г.

genetic root

Мышление и речь

Лев Семенович Выготский

鍾宜興

Глава четвертая: Генетические корни мышления и речи

幾個字的說明

Мышление

Интеллект

Речь

Язык

Part I

兩種發生學的研究

種系發生學 филогенез, phylogenesis)

個體發生學онтогенез, ontogenesis

探討思維與言語的起源

種系發生學

主要從KöhlerYerkes以及其他的研究中確認

Köhler認為

缺乏概念技術輔助手段(語言)以及最重要的智性活動材料--概念所以黑猩猩無法獲得任何的文化發展。

Köhler的觀察

非是偶然性的случайность

亦非超感覺動因的сверхчувственные агенты

只說明現象,卻未能建立理論

Köhler及心理學界未能提出令人信服的智力理論(теории интеллекта

生物心理學家(Торндайк, Вагнер, Боровский)將智性活動視為嘗試錯誤

主觀主義心理學家 (Бюлер, Линдворский, Иенш) 將人類與黑猩猩的智性活動視為等同

各方共同接受的觀點

Köhler的觀察正確

黑猩猩的行動不依賴言語

言語與思維是分開的嗎?在人類之外,其他動物的狀況如何呢?

Бюлер的觀察

黑猩猩的行動完全獨立於言語之外(Действия шимпанзе совершенно независимы от речи

比之其他的形式的思維,猩猩的工具思維與言語之關係更為薄弱(в позднейшей жизни человека техническое, инструментальное мышление (Werkzeugdenken) гораздо менее связано с речью и понятиями, чем другие формы мышления

В.М. Боровский:「我覺得最正確的說法是:就現代的知識水準,尚未能確認,除了人類之外,黑猩猩或其他動物有言語的技巧。」

但事實上,卻發現在黑猩猩身上有高度發達的「言語」

Köhler :他們的語音只是表達他們的願望、企求和主觀的狀況,是以,這是情緒的表達,從不是何種客觀的符號

黑猩猩是高度社會性的動物

Köhler黑猩猩多樣的「言語交談」形式 формы речевого общения¨

情感表情動作(эмоционально-выразительные движения

社交情感的表達動作(выразительные движения социальных эмоций

上述研究證實Wundt的說法:指示的動作(указательные жесты )是人類語言發展的最原始的階段

Иеркс 確認猩猩有「高級概念化」(высшую идеацию),但尚不及三歲的兒童。此說法並未有證據證明

Köhler的研究證明視覺當下的情境(влияние наличной оптически-актуальной ситуации )影響黑猩猩的行為

Köhler研究的邏輯結論

一、視覺當下情境

二、正是表象(概念化)的原則性侷限是猩猩智性行為的特點(принципиальная ограниченность

黑猩猩具有良好的發音器官,
是否有人類的語言呢?

Иеркс 四種方法教導黑猩猩像人一樣地說話。但結果為否定的。

若黑猩猩能夠掌握人類語言,則將不只是模仿(如鸚鵡般地模仿)。

實驗上要排除聽覺模仿的影響。(聾啞人士的語言,手勢、唇語)

黑猩猩仍無法學習,如同人類一般的說話

黑猩猩的思維能力呢?

Köhler認為是研究者忽略了困難區(зоны трудности。不是在任何的條件下,就可以完成所有的任務。

確認的一件事:黑猩猩並無概念,而是在一定條件下能使用和製作最簡單的工具和採用迂迴路線(изготовлению простейших орудий и применению обходных путей¨

如果概念是言語產生的必要條件

所以黑猩猩無法形成概念,則期能達到人類言語水準也將不可能

缺乏概念形成,即是缺乏使用非現實,不在視覺範圍之內的刺激物

多數的研究者認為黑猩猩的智力與人的智力最大區別正是在於黑猩猩缺乏這種智力操作(使用語言)。

兩個原則的發現

一、理性使用言語是智力功能,不能是由視覺結構直接決定的

二、在任何非視覺當下結構的任務,而是涉及其他種類的結構(如機械)訓練中,黑猩猩總是從智力行為過渡到單純的嘗試錯誤

所以,黑猩猩掌握人類言語的假設,從心理學看來是很不可靠的

KöhlerEinsicht insight

Kafka認為Köhler對此的理解是單純的視覺發現,然後才是對與盲目行為方式相對立的理解

整個過程是完成操作的內部結構

Боровский 說:猿猴若無明顯的嘗試動作,他也會用肌肉打量著 видимых проб не производит, то она «примеривается» какими-нибудь мускулами)

但是,在視覺情境之外,猩猩的智力就無法發生作用

猩猩的言語

黑猩猩有其豐富的言語,但這與其相當發達的智力並無相關

Лернед 編寫猩猩字典,但32個字,主要是情感意義的字詞。

猩猩言語特徵的有三方面讓人覺得有趣:

1.言語與表達情感的動作有關這是具有發音器官動物普遍的現象。

2.激動的情感狀態會破壞其智力反應

3.言語不僅是情緒的表達,也是與同類進行心理接觸的媒介

Part II

個體發生學

兒童的思維在其發展中經歷前言語期(доречевую стадию

智力反應的萌芽不必依賴言語,而是獨立的

前智力階段

在兒童發展中,言語的前智力根源(Доинтеллектуальные корни речи )早就確定

尖叫、嘟噥都是前智力階段

這些都與思維發展無共同之處

研究(Ш. Бюлер и др. )證明一歲前的兒童,正式言語發展的前智力階段,以充分地發展言語的社會功能

一歲前兒童的言語發展

亦可看見在種系發生學上發現的兩種功能

情緒的與社會的

兒童思維與言語發展中最重要的結論

大約在兩歲以前一直分開發展的思維與言語的發展路線開始交錯、重合並且成為人類所特有的全新行為形式之起點

В. Штерн

比其他的心理學家更早地描述兒童發展中的大事。

兒童發現每樣物品都有其名字(каждая вещь имеет свое имя

就是這個轉折顯示出兒童的言語開始成智性的(речь становится интеллектуальной,而思維便成言語的(мышление речевым

兩個特徵

1.轉折之後,兒童開始積極地擴大自己的詞彙量。會問新的事物,是什麼?

2.在積極擴大詞彙的基礎上,快速地跳躍地增加字彙量

相關的討論

言語進入兒童發展的智力時期,似乎發現言語的符號功能。

Штерн認為兒童理解符號與意義之間的關係,與簡單地使用概念與概念的聯想是兩件事情。每類事物有其名稱,可以是兒童的最初一般概念。

Бюлер將此發現與黑猩猩的發明做比較。這,在心理學上與黑猩猩的發明是平行的現象。

К. Коффка命名功能是兒童的發明或發現,他與黑猩猩的發明完全相同的現象。

只能在思維與言語發展達到相當高的階段,「兒童生活中最偉大的發現」才有可能 относительно высокой стадии развития мышления и речи становится возможным “величайшее открытие в жизни ребенка”)為了發現言語,就必須思維(Для того чтобы «открыть» речь, надо мыслить

四個結論

1.在思維與言語的個體發生中,我們發現兩個過程不同的根源

2.在兒童的言語發展中,我們能確信地表示「前智力階段」,同樣地,也在思維發展中確認「前言語階段」

3.在一定的階段前兩種發展按照不同的路線前進,互相獨立

4.在一定的時間點上,兩條路線交會,然後思維成為言語的,而言語成為理智的

Part III

內在言語(внутренняя речь )的重要性

內在言語即是思維。思維是延緩的、擱置的或無聲的言語。

但是,如何從外在言語轉變為內在言語,何時轉變,為何轉變等問題,卻仍有待釐清。

Уотсон Watson)

兒童在自己言語組織的某一點上,從公開言語(от открытой речи )到低聲細語(к шепоту ),然後再到隱藏言語(к скрытой речи

雖然,Watson 是偶然研究此問題,但是,必須指出其提問是不正確的。

沒有理由相信,內在言語的發展是單純機械的路徑(механическим путем),逐步減少聲音的路徑。

УотсонWatson)的另一個假設

「或許」三個類型同時前進(все три вида подвигаются совместно

上述假設亦無證據可以證明此一「或許」

Watson 與其他學者共同承認,公開言語和內在言語的功能與結構上的差異。

Watson的觀察與說明

兒童確實進行有聲思考(Они действительно мыслят вслух

外在的環境並不要求快速地轉變成隱藏言語

以錄音為譬喻作為說明。

錄音的過程:在起點時,是完善的和社會性的(совершенны и социальны );終點時,是為了個人的,而非社會適應的(индивидуальных, но не для социальных приспособлений)。

Выготский的研究:此三者的結構與功能的關係

1.在結構上,低聲言語和發聲言語,並無重大的變化。主要的變化在於內在言語

2.在功能上,低聲言語與內在言語有極大的差別,而無共同的特點

3.在起源上,低聲言語可能很早,早在學齡前就被悄然引發了

Watson研究被證實者:兒童在三歲時,因為社會壓力,所以在短時間內,困難地轉向降聲量說話和耳語。

討論Watson的意義

不僅是此為流傳甚廣的典型說法

更重要是Watson的方法正確

其方法是要找到連結外在言語和內在言語過程中的環節(среднее звено

Piaget的學說

外在和內在言語的環節:自我中心的兒童言語(эгоцентрической» детской речи

其他學者對學齡兒童研究的觀察也支持(наблюдения Деметра и других авторов

自我中心言語

不僅具有表達、分類的功能,也具有規劃行動、解決新問題的功能。

很容易就可說是思維

重要假設的證實

言語是先在心理上成為內在的(психологически внутренней ),然後是生理上成為內在的(физиологически внутренней )。

根據功能,自我中心言語室內在的,是自己的言語,在內在與兒童行為合成一體。但在生理上仍為外在言語。所以言語轉變為內在,是因為其功能轉變了。

言語發展研究的轉變

外在言語、自我心言語、內在言語取代了Watson的響亮言語、耳語、無聲言語(громкая речь, шепот, беззвучная речь )。

方法論上的轉變:內在言語的特點亦存在於外在言語中,因此可以對外在言語進行實驗,並且測量

任何的心理運作,都必須依靠符號的運用(использование знаков

四個基本階段

第一階段:原始、自然階段(примитивная, натуральная стадия )上述所談的前言語、前思維就是屬於這個階段

第二階段:素樸心理學階段(стадией “наивной психологии”)。兒童掌握語法上的結構與形式比掌握思維結構與運作要早,會說因為所以,但是用錯了。

第三階段:內在符號、內在運作階段(стадия внешнего знака, внешней операции, )外在符號增強記憶,自我中心言語的階段

第四階段:轉化階段(стадией “вращивания”)。外在運作進入內在,以內在符號為的方式,運用內在關連的關係,稱之為「邏輯記憶」。與之相應的言語是內在的,無聲的。

從兒童到成人

在成人內在言語中,思維與言語兩者關係

思維與言語並不等同,若用兩個原表示,則是兩者有部分重疊,即是「言語思維」的範疇(сфера “речевого мышления”)。

但有很大部分,言語與思維沒有關連。例如,言語可以表達情感或是記憶一段文字,但是這很難說成智力活動

成人的思維與言語相融合屬局部的現象,此對言語思維有作用和意義。

Part IV

總結

尚有許多問題不能確定

可以確定:在動物界,通往人類智能與人類言語的路徑上,並不一致;思維與言語的發生根源兩者亦不同。

即使否定Köhler黑猩猩有智力觀點者,亦不能否定這是走向智力的路徑。

使用工具成為人類行為的根源

馬克思主義

Маркс:使用工具,人類勞動的特點。

Плеханов指出:「無論如何,動物學交給歷史人類(истории homo),已是具備發明與使用最原始工具能力。」

Энгельс 所有歸納、綜合等方法,都是人類與動物所共有的,只是程度的差別。

言語根源

Энгельс 的觀點

不論Энгельс 的對錯。可以確定的一點,沒有理由否定動物界存在著思維與言語的發生根源。

言語能力很高(如鸚鵡),並不與其思維萌芽的高度發展直接相關。相反,亦如是。言語和思維彼此有不同的發展路線。

發生學所確定之事

兒童的思維與言語,究其發生根源與路線是不同的,

Штерн 肯定地說,這兩條路徑在某個時間點上會交叉、相見。言語成為智力的,思維成為語言的。

部分學者持否定的態度。Делакруа 否定首先提出問題(這叫什麼?)年齡與第二年齡(4年後,為什麼?)兩者有不同意義。Валлон ,名稱在很短暫的時間裡,對兒童來說,僅只是物品的特性而已。

中間的說法

Коффка 一方面跟隨Бюлер ,認定兒童言語的指稱功能之發明與發現,和猩猩的發明工具之間可以類比。另一方面認為詞語是進入物品的結構,但是並不一定有符號的功能意義。

Бюлер 進一步地說,所有新事物對兒童來說就是當下情境的問題,根據他的普遍結構圖式(по общей структурной схеме )解決,那就是以詞彙稱呼。兒童詞彙不足以說明新事物,則他將求助於成人。

中間的說法

此說法解決了 Штерн — Делакруа. 之間的爭論

兒童掌握外在結構先於內在結構;當兒童掌握內在結構之後,詞彙才成為物品;而後才成為象徵結構(структурой символической. )。

中間說法的結論

1.否定一歲半兒童能發現言語的象徵功能,

2.符號功能的使用,甚至是比詞彙還簡單的符號使用,都是相當晚出現的,對一歲半的兒童是不太可能的。

3.兒童要經歷很長的時間才能意識到言語的象徵意義,並且使用詞彙做為物品的特徵之一。

4. Штерн Бюлер 對於特殊兒童的觀察(如Hellen Keller),可以發現上述可以精確確定的發現時間是不存在的,相反地,卻是一系列「分子」的變化。

5.未能觀察到學齡兒童能夠立刻發現符號功能的使用,都是會經歷一段素樸的心理學時期。

思維與言語發生學研究的簡單總結

思維與言語發生學上的簡單總結兩者的發生根源與路徑在一定時間之前是各自不同的

兩條路徑的交會是新的發現

但是究竟如何發生,如何完成,則有待釐清。

內在言語研究的總結

內在言語的發展是通過累積漫長功能和結構變化而成。

內在言語是從兒童外在言語分化出來的。是言語在社會與自我中心功能上的分化。最後,兒童掌握言語結構成為其基本的思維結構。

思維的發展依賴於言語,依賴於思維方法和兒童的社會文化經驗

內在言語是由外在所決定

方法論上的意義

全文的提法具有方法論上的意義

從生物性質的發展轉化社會-歷史性質的發展(с биологического на общественно-исторический

思維與言語的問題超越了自然知識的方法論,而成為人類歷史心理學,亦即社會心理學的中心問題(исторической психологии человека, т.е. социальной психологии )。

謝謝聆聽

среда, 12 мая 2010 г.

20100507 scientific concepts

THE DEVELOPMENT OF SCIENTIFIC CONCEPTS IN CHILDHOOD
Chapter 6
Zaretskaya Svetlana
2010 0507
Lev Vygotsky 1896 - 1934

The development of scientific concepts in the school-age child
This question is primarily a practical issue of tremendous importance for the school's task of instructing the child in a system of scientific concepts.
This problem contains the key to the whole history of the child's mental development. It must, therefore, be our point of departure in studying the child's thinking.
Until recently, however, this problem has remained almost entirely unexplored.
Our knowledge of the development of scientific concepts is extremely limited.
Vygotsky own experimental research, which he will cite frequently in the present chapter, is among the first systematic studies of the issue.
A comparative study of the development of scientific and everyday concepts in school-age children.
So, Shif’s basic task was to carry out an experimental evaluation of the working hypothesis concerning the unique haracteristics of the development of scientific as opposed to everyday concepts.
The attempt to study the actual development of the child's thinking in the course of school instruction grew from several basic assumptions: (1) in general terms, concepts or word meanings develop; (2) scientific concepts are not learned in final form --they too develop; (3) findings based on the study of everyday concepts cannot be generalized to scientific concepts; and (4) the problem as a whole must be studied experimentally.
The findings from this study lead to several conclusions
A comparative analysis of the results for each age group demonstrates that with the appropriate educational program the development of scientific concepts outstrips the development of spontaneous concepts.
This method shows:(1) that there is a higher level of conscious awareness of scientific than everyday concepts, and (2) that there is a progressive development of scientific thinking which is followed by a rapid increase in levels of performance with everyday concepts.
This indicates that the accumulation of knowledge leads directly to an increase in the level of scientific thinking and that this, in turn, influences the development of spontaneous thinking.
The unique processes in the development of scientific concepts.
The development of scientific concepts begins with the verbal definition. As part of an organized system, this verbal definition descends to the concrete; it descends to the phenomena which the concept represents.

In contrast, the everyday concept tends to develop outside any definite system; it tends to move upwards toward abstraction and generalization.

Development of Scientific Concepts
The development of the scientific social science concept, a phenomenon that occurs as part of the educational process, constitutes a unique form of systematic cooperation between the teacher and child. The maturation of the child's higher mental functions occurs in this cooperative process, that is, it occurs through the adult's assistance and participation.
The earlier maturation of scientific concepts is explained by the unique form of cooperation between the child and the adult that is the central element of the educational process; it is explained by the fact that in this process knowledge is transferred to the child in a definite system.
This is also why the level of development of scientific concepts forms a zone of proximal possibilities for the development of everyday concepts.

Strengths and weaknesses in scientific and everyday concepts.
The weakness of the everyday concept lies in its incapacity for abstraction, in the child's incapacity to operate on it in a voluntary manner. Where volition is required, the everyday concept is generally used incorrectly.

In contrast, the weakness of the scientific concept lies in its verbalism, in its insufficient saturation with the concrete. This is the basic danger in the development of the scientific concept.

The strength of the scientific concept lies in the child's capacity to use it in a voluntary manner, in its "readiness for action."
How do scientific concepts develop in the course of school instruction?
We know from research on concept formation that the concept is not simply a collection of associative connections learned with the aid of memory.
We know that the concept is not an automatic mental habit, but a complex and true act of thinking that cannot be mastered through simple memorization. The child's thought must be raised to a higher level for the concept to arise in consciousness.
At any stage of its development, the concept is an act of generalization. The most important finding of all research in this field is that the concept --represented psychologically as word meaning - develops. Any word meaning, at any age, is a generalization. However, word meaning develops.
The development of concepts or word meanings presupposes the development of a whole series of functions. It presupposes the development of voluntary attention, logical memory, abstraction, comparison, and differentiation. These complex mental processes cannot simply be learned.
Pedagogical experience demonstrates that direct instruction in concepts is impossible. It is pedagogically fruitless.

Under these conditions, the child learns not the concept but the word, and this word is taken over by the child through memory rather than thought. Such knowledge turns out to be inadequate in any meaningful application. This mode of instruction is the basic defect of the purely scholastic verbal modes of teaching which have been universally condemned.
The sole law of the child's mental development according to Piaget
Development is reduced to the dying out of the characteristics of the child's thinking. What is new to development arises from without.

The child's characteristics have no constructive, positive, progressive, or formative role in the history of his mental development. Higher forms of thought-do not arise from the characteristics of the child, but simply take their place.

The relationship between instruction and development is represented as one of antagonism in the process of the formation of the child's concepts. From the outset, the child's thinking is placed in opposition to adult thought.
Child's mental development according to Vygotsky


The goal of the present study, the primary motivation for the construction and experimental verification of the working hypothesis, is essentially to overcome these limitations in what is one of the best contemporary theories (Piaget) of the development of the child's thought.

The first basic assumption is the direct opposite of Piaget's first mistaken thesis.
The development of nonspontaneous concepts (particularly scientific concepts, which we consider a high, pure, and, both theoretically and practically, important type of nonspontaneous concept) will manifest all the basic qualitative characteristics of the child's thought at a given stage of development.

This position is based on the idea that scientific concepts are not simply acquired or memorized by the child and assimilated by his memory but arise and are fonned through an extraordinary effort of his own thought. This implies that the development of scientific concepts must manifest the characteristics of the child's thought. This assumption is fully supported by experimental research.


Vygotsky second assumption is also in opposition to Piaget's
Scientific concepts not only manifest features that are the opposite of those manifested by spontaneous concepts but manifest features that are identical to those manifested by spontaneous concepts. The boundary that separates these two types of concepts is fluid. In the actual course of development, it shifts back and forth many times.

The development of spontaneous and scientific concepts are closely connected processes that continually influence one another. The development of scientific concepts will depend directly on a particular level of maturation of spontaneous concepts. There is evidence for this in our practical experience.
In opposition to Piaget's mistaken and contradictory third position
Finally in the process of concept formation -the relationship between the processes of instruction and development must be immeasurably more complex and positive in nature than the simple antagonism proposed by Piaget.
It is reasonable to anticipate that research will show that instruction is a basic source of the development of the child's concepts and an extremely powerful force in directing this process.
Scientific concepts can arise in the child's head only on the foundation provided by the lower and more elementary forms of generalization which previously exist. They cannot simply be introduced into the child's consciousness from the outside.
The distinction between spontaneous and nonspontaneous concepts.
To construct the working hypothesis and explain this distinction in theoretical terms, we must consider the factors which permitted us to anticipate the difference between these two types of concepts. These considerations fall into four groups:
1) Here we are concerned with our empirical, experiential knowledge rather than experimental research.
2) We are concerned here with theoretical considerations . The child's thought is even more original and unique than his language.
3) Here we are concerned with heuristic considerations.
4) Here we are concerned with practical considerations.

Relationships between the development of scientific and everyday concepts. The characteristics of the school-age child's everyday concepts.
Piaget has demonstrated that the essential characteristic of the child's thinking and concepts at this age is his incapacity for reflective awareness of relations that he can use correctly when no reflective awareness on his part is required, that is, when he acts spontaneously and automatically. It is egocentrism that prevents the child's conscious awareness of his own thought.
The child's incapacity for conscious awareness of his own thought or for establishing logical connections with conscious awareness extends through the age of eleven to twelve years. The child manifests an incapacity for the logic of relationships and substitutes his own egocentric logic. Between seven and twelve years of age, these difficulties carry over into the verbal plane.
The relationship between scientific and everyday concepts
The development of scientific and spontaneous concepts take opposite paths. This is a key point of our hypothesis.
Scientific concepts begin their life at a level that the development of the child's spontaneous concepts has not yet reached.
The strengths and the weaknesses of everyday and scientific concepts differ.
Analysis of the child's spontaneous concept indicates that he has more conscious awareness of the object than of the concept itself.
Analysis of his scientific concept indicates that he has more conscious awareness of the concept than of the object that is represented by it.
The child's mental development
We were able to demonstrate empirically that the child's mental development consists not so much in the development or maturation of separate functions as in changes in the connections and relationships among these functions.
Indeed, the development of each mental function depends on these changes in interfunctional relationships.
Consciousness develops as a whole. With each new stage in its development, its internal structure - the system of connections among its parts -changes.
Development is not a sum of the changes occurring in each of the separate functions. Rather, the fate of each functional part of consciousness depends on changes in the whole.


The interfunctional connections and relationships are neither constant nor inessential. They cannot be placed outside the analytic frame within which psychological investigations are carried out.
Change in these interfunctional connections, -change in the functional structure of consciousness - is the main and central content of the entire process of mental development.
For the new psychology, this change in interfunctional connections and relationships becomes the central problem.
It is a general law of development that conscious awareness and mastery characterize only the higher stages of the development of a given function.
By the time the transition to school age occurs, perception and memory are comparatively developed, creating a basic prerequisite for mental development during this stage.

The core of Vygotsky’s hypothesis


Only within a system can the concept acquire conscious awareness and a voluntary nature.
Conscious awareness and the presence of a system are synonyms when we are speaking of concepts, just as spontaneity, lack of conscious awareness, and the absence of a system are three different words for designating the nature of the child's concept.
The dependence of scientific concepts on spontaneous concepts and their influence on them stems from the unique relationship, that exists between the scientific concept and its object. As we said, this relationship is characterized by the fact that it is mediated through other concepts.

A single illustration.
The distinction between spontaneous and nonspontaneous concepts in the child coincides logically with the distinction between empirical and scientific concepts.
It is well known that more general concepts arise in the child earlier than more specific ones. Thus, the child usually learns the word "flower" earlier than the word "rose." In this context, the concept of "flower" is not actually more general that the concept of "rose"; it is merely broader. When the child has mastered only a single concept, its relationship to the object is different than it is after he masters a second. However, even after he masters a second concept, there is a long period during which the concept of "flower" continues to stand alongside, rather, than above, the concept of "rose."


How does conscious reflection arise?
We found the source of the lack of conscious awareness of concepts not in egocentrism but in the absence of system in the child's spontaneous concepts. This is why spontaneous concepts lack conscious awareness and volitional control.

We found that conscious awareness is realized through the formation of such a system, a system which is based on specific relations of generality among concepts.

We also found that conscious awareness of concepts leads to their volitional control. By its nature, the scientific concept presupposes a system. Scientific concepts are the gate through which conscious awareness enters the domain of the child's concepts.

The importance of scientific concepts for the development of the child's thinking.
Thinking first crosses the threshold that separates preconcepts from true concepts.
The problem of nonspontaneous concepts –of scientific concepts in particular --is the problem of instruction and development. Spontaneous concepts create the potential for the emergence of nonspontaneous concepts in the process of instruction. Instruction is the source of the development of this new type of concept.
The problem of spontaneous and nonspontaneous concepts is a special case of the more general problem of instruction and development. Isolated from this more general context, the problem of spontaneous and nonspontaneous concepts cannot be correctly stated.
The relationship between instruction and development
There is a mutual dependency between the two types of development, that is, between maturation and instruction.
For structural psychology, instruction represents the emergence of new structures and the development of old ones. Thus, if the child forms a structure or learns an operation in the course of instruction, he has acquired more than the potential of reproducing that structure or operation. A single step in instruction can represent a hundred steps in development. This constitutes the most positive feature of the new theory.
Instruction is not limited to trailing after development or moving stride for stride along with it. It can move ahead of development, pushing it further and eliciting new formations.
This insight has immeasurable importance and value.

Basic to the approach is the concept that instruction and development are neither two entirely independent processes nor a single process. They are two processes with complex interrelationships.
The mental functions must mature before instruction can begin, this first series of studies consistently indicated that they do not, even though instruction may be proceeding smoothly (the foundation for instruction in basic school subjects such as reading, writing, arithmetic, and natural science).
We will clarify this point using the example of written speech.

The written speech. Why is written speech so difficult for the school child?
Written speech is an entirely unique speech function. Its structure and mode of functioning are as different from those of oral speech as those of inner speech are from external speech.
Even the most minimal level of development of written speech requires a high degree of abstraction.
Written speech lacks intonation and expression. It lacks all the aspects of speech that are reflected in sound.
Written speech is speech in thought, in representations. It lacks the most basic feature of oral speech; it lacks material sound.
It is speech without an interlocutor. This creates a situation completely foreign to the conversational speech the child is accustomed to.

Written speech is speech-monologue.
Written speech requires a dual abstraction from the child. It requires an abstraction from the auditory aspects of speech and an abstraction from the interlocutor. This is the second of the basic difficulties the school child encounters in his mastery of written speech.
The motives that would cause one to resort to written speech are even less accessible to the child when he begins to learn to write. As is true of any new form of activity, the motivation for speech and the need for it is fundamental to its development. When he begins to write, the school child does not sense the need for this new speech function.


Written speech is the most expanded form of speech. Even things that can be omitted in oral speech must be made explicit in written speech. Written speech must be maximally comprehensible to the other. This transition from a maximally contracted inner speech (i.e., from speech for oneself) to a maximally expanded written speech (i.e., to speech for the other) requires a child who is capable of extremely complex operations in the voluntary construction of the fabric of meaning.
The second basic characteristic of written speech (i.e., its greater consciousness) is closely linked with its volitional nature.

In sum



In summarizing this brief discussion of the study of the psychology of written speech, we can say that the mental functions which form written speech are fundamentally different from those which form oral speech. Written speech is the algebra of speech. It is a more difficult and a more complex form of intentional and conscious speech activity.
Two conclusions follow:
(1) this explains the radical difference between the child's oral and written speech (this difference is a function of differences in the level of development required by activities that are spontaneous, involuntary, and without conscious awareness and those that are abstract, voluntary, and characterized by conscious awareness);
(2) when instruction in written speech begins, the basic mental functions that underlie it are not fully developed; indeed, their development has not yet begun. Instruction depends: on processes that have not yet matured, processes that have just entered the first phases of their development.

Teaching grammar
Since grammar would seem the least necessary or useful school subject for the child, the issue of the value of instruction in grammar is methodologically and psychologically complex.
If we analyze instruction in grammar and written speech, however, we find that it has tremendous significance for the general development of the child's thought.

What the child does learn in school, however, is conscious awareness of what he does. He learns to operate on the foundation of his capacities in a volitional manner. His capacity moves from an unconscious, automatic plane to a voluntary, intentional, and conscious plane. Instruction in written speech and grammar play a fundamental role in this process. Thus, both grammar and writing provide the child with the potential of moving to a higher level in speech development.



The temporal relationship between the processes of instruction and development.
Research has shown that instruction always moves ahead of development. There is always a divergence between school instruction and the development of the corresponding functions. These processes never run in parallel.

Development has a different tempo than instruction. What we have here is a situation inherent in any scientific attempt to establish a relationship between two related processes that must be measured in accordance with different units of measurement.

Development is not subordinated to the school program. It has its own internal logic.


In sum
At the moment a given arithmetic operation or scientific concept is acquired, the development of this operation or concept is not completed.
The curve representing its development does not correspond with that representing the school program.
Instruction moves ahead of development.

A process of instruction
The child's abstract thinking develops in all his lessons. Its development does not move in separate channels corresponding to the school subjects.
Three facts have been solidly established in the experiments: (1) there is significant commonality in the mental foundations underlying instruction in the various school subjects that is alone sufficient to insure the potential for the influence of one subject on the other,
(2) Instruction influences the development of the higher mental functions in a manner that exceeds the limits of the specific content and material of each subject,
(3) The mental functions are interdependent and interconnected. The common foundation of all the higher mental functions is conscious awareness and mastery.
The zone of proximal development. How can this be accomplished?
Psychological research on the problem of instruction is usually limited to establishing the level of the child's mental development. The sole basis for determining this level of development are tasks that the child solves independently. This means that we focus on what the child has and knows today.
Using this approach, we can establish only what has already matured. That is, we can determine only the level of the child's actual development.
If he is to fully evaluate the state of the child's development, the psychologist must consider not only the actual level of development but the zone of proximal development.

The difference between the child's mental ages, this difference between the child's actual level of development and the level of performance that he achieves in collaboration with the adult, defines the zone of proximal development.
The children are not at the same level of mental development. The difference between these two children reflected in our measurement of the zone of proximal development is more significant than their similarity as reflected in their actual development.
Research indicates that the zone of proximal development has more significance for the dynamics of intellectual development and for the success of instruction than does the actual level of development.

Collaborative work and imitation
The child can imitate only what lies within the zone of his own intellectual potential.
In collaboration the child can always do more than he can independently. What collaboration contributes to the child's performance is restricted to limits which are determined by the state of his development and his intellectual potential.
In collaboration, the child turns out to be stronger and more able than in independent work. He advances in terms of the level of intellectual difficulties he is able face. However, there always exists a definite, strictly lawful distance that determines the differential between his performance in independent and collaborative work.

Development based on instruction is a fundamental fact. Therefore, a central feature for the psychological study of instruction is the analysis of the child's potential to raise himself to a higher intellectual level of development through collaboration, to move from what he has to what he does not have through imitation. It is also is the content of the concept of the zone of proximal development.
Understood in a broad sense, imitation is the source struction's influence on development. The child's instruction in speech, and school instruction generally, is largely a function of imitation.
It is only possible to teach a child when he is able to learn. Instruction is possible only where there is a potential for imitation.
Characteristics of instruction and development
We can identify characteristics of instruction and development that are unique to the school age, since instruction and development do not begin when the child comes to school.

Instruction occurs on all levels of the child's development. As we shall see in the following section, however, instruction takes on forms that are specific to each age level.

Further, at each of these levels, instruction has a unique relationship to development.

Conclusions
We have seen that instruction and development do not coincide.

They are two different processes with very complex interrelationships.

Instruction is only useful when it moves ahead of development. When it does, it impells or wakens a whole series of functions that are in a stage of maturation lying in the zone of proximal development.

Instruction is maximally productive only when it occurs at a certain point in the zone of proximal development.

The analysis of a basic fact which has been established through the comparative study of the school child's scientific and everyday concepts.
This type of research leads to the finding that these two kinds of concepts do not manifest identical levels of development.
Depending on whether the operation is carried out on the basis of scientific or everyday concepts, the child will manifest different capacities to grasp relationships of causation and dependency or relationships of implication.
Comparative analysis of scientific and everyday concepts within a single age group indicates that -with an appropriate educational program -the development of scientific concepts outstrips that of spontaneous concepts.
In scientific concepts, we encounter higher levels of thinking than in everyday concepts.

The strength of the scientific concept lies in the higher characteristics of concepts, in conscious awareness and volition. In contrast, this is the weakness of the child's everyday concept.
The strength of the everyday concept lies in spontaneous, situationally meaningful, concrete applications, that is, in the sphere of experience and the empirical.
The development of scientific concepts begins in the domain of conscious awareness and volition. It grows down­ward into the domain of the concrete, into the domain of personal experience. In contrast, the development of spontaneous concepts begins in the domain of the concrete and empirical. It moves toward the higher characteristics of concepts, toward conscious awareness and volition.
The link between these two lines of development reflects their true nature. This is the link of the zone ofproximal and actual development.

The influence of scientific concepts on the child's general mental development
Our theory and research indicate that scientific concepts provide a segment of development which the child has not yet passed through; they indicate that the scientific concept moves ahead into a zone where the corresponding potentials have not yet matured in the child.

This allows us to begin to understand that instruction in scientific concepts plays a decisive role in the child's mental development.

What are the laws that govern this movement of concepts from the general to the specific and from the specific to the general?
Until recently, this question has remained unanswered. In our research on the child's actual concepts, we have attempted to identify the most basic laws in this domain.

First of all, we were able to show that generality (i.e., the difference of generality) does not coincide with the levels of structural generalization that we identified in our experimental studies of concept formation (i.e., the levels associated with syncretic concepts, complexes, preconcepts, and true concepts).


First, concepts of different levels of generality are possible within any given structure of generalization. For example, concepts with different levels of generality (e.g., "flower"and "rose") may be present at the stage of complexes.
Second, concepts-with the same level of generality may be present within different structures of generalization. For example, the concept of "flower" may have a general meaning that allows it to represent all species of flowers whether the structure is that of complexes or concepts.
Thus, there is no direct correspondence between relationships of generality and the structure of generalization. The two are not entirely foreign to each other nor entirely unconnected with one another. There is a complex mutual dependency between them.
The basic finding of the research
The basic finding of our research is that relationships of generality between concepts are closely associated with the structure of generalization (i.e., they are closely associated with the stages of concept development that we studied in our experimental research).
Each structure of generalization (i.e., syncretic, complexes, preconcepts, and concepts) corresponds with a specific system of generality and specific types of relationships of generality between general and specific concepts.
Each structure of generalization has a characteristic degree of unity, a characteristic degree of abstractness or concreteness, and characteristic thought operations associated with a given level of development of word meaning.