Дипломная работа: Learner observation tasks as a learning tool for pre-service teachers
Over the years numerous schemes have been developed for recording classroom interaction. Chaudron (1988:19), modifying the analysis originated by Long (1980), identifies twenty-four various schemes. In his review Chaudron (1988:17) points out that Long (1980) has included only those instruments which were designed to observe verbal interaction in a classroom, whereas the range of categories is great due to various purposes of observation. Chaudron interprets categories as
a) social interactive (Allwright (1980:169) turn-taking and turn-giving, Moskowitz’s (1970) ‘jokes’, ‘praises or encourages’)
b) pedagogical (Jarvis’s (1968:336) ‘classroom management’, ‘repetition reinforcement’, or Fanselow’s (1977:18) ‘solicit’, ‘respond’)
c) objective behaviour (Naiman, Neil, Frölich, Stern, and Todesco’s (1978) ‘student hand-raising’, ‘student callout’, or Moscowitz’s (1970) ‘student response -choral’)
d) semantic or cognitive content of behaviours (Fanselow’s (1977:31) ‘characterize’)
e) type and grouping of participants (Mitchell et al. (1981:19) ‘whole class’, ‘individuals doing the same task’)
For teacher training purpose Chaudron (1988:18) recommends to apply eleven schemes among which Capelle, Jarvilla, and Revelle (n.d.), Moskowitz’s (1970), Politzer (1980), Seliger (1977) are conducted in real time coding and categories of schemes refer to low degree of inference.
Advantages of interaction schemes as the basis of reflection in experiential knowledge are described by Wallace (1991:121) and he claims that these systems
1) objectify the teaching process;
2) provide a reliable record (by a trained observer);
3) promote self-awareness in the teacher;
4) provide a meta-language, which enables teachers to talk about their profession;
5) make teacher training more effective by improving the quality of teaching.
At the same time systematic observation schemes have some critics. Delamont and Hamilton’s (1976:3) main critique is levelled at the use of pre-specified categories to ‘code’ or classify the behaviour of teachers and pupils, which can not capture and reflect the whole complexity of classroom life.
Delamont and Hamilton (1976:8) identify seven criticisms of systematic observational systems:
1) Systematic observation provides data only about ‘average’ or ‘typical’ classrooms, teachers and pupils.
2) All the interactional analysis systems ignore the temporal and spatial context in which the data are collected as most systems use data gathered during very short periods of observation the observer is not expected to record information about the physical setting.
3) Interaction analysis systems are usually concerned only with overt, observable behaviour. In the case if intentions lay behind the direct behaviour an observer must himself impute the intention.
4) Interaction analysis systems are concerned with ‘what can be categorized or measured’ (Simon and Boyer 1986:1). They may obscure, distort or ignore the qualitative features which they claim to investigate, by having ill-defined boundaries between the categories.
5) Interaction analysis systems focus on ‘small bits of action or behaviour rather than global concepts’ (Simon and Boyer 1986:1). Delamont and Hamilton clarifies that there is a tendency to generate a superabundance of data which must be linked either to the complex set of descriptive concepts or to a small number of global concepts.
6) The systems utilize pre-specified categories.
7) Placing arbitrary boundaries on continuous phenomena obscures the flux of social interaction.
Walker and Adelman (1976: 136) emphasize the problems of recording child-child talk and objectivity of incorporating this kind of talk into the normal flow of teacher-centred classroom. They illustrate that there is no research instrument to code the spontaneous talk or social function of jokes and humour. ‘Talk is seen to be a highly complex, problematic activity, rich in contradictory and bizarre meanings and frequently with difficulties and confusions’ (Walker and Adelman 1976: 137). This organisation is taken for granted in observation schemes.
Rating scales
McKernan (1996:118) reviews various styles of rating scales – category, numerical, graphic and pictorial. They all share the common feature of having a rater place an object, person or idea along a sequential scale in terms of estimated value to the rater. Rating scales are treated as helpful instrument to measure non-cognitive areas where an observer is interested in cooperativeness, industriousness, tolerance, enthusiasm, group skills. At the same time McKernan (1996:119) notes that all rating sheets need to
a) include observable behavior;
b) rate significant outcomes as opposed to minor or trivial behaviours;
c) employ clear, unambiguous scales – never to use less than three, nor more than ten points on a scale;
d) arrange for several raters to observe the same phenomena to increase reliability of ratings;