Interaction sociale et acquisition de la conservation du volume

Numerous experiments have shown that social interaction often plays a positive role in the acquisition of new cognitive operations. However, some experiments do not show such effect. One possible reason for such a lack in specific interaction situations could be the absence or paucity of systematic confrontations between partners’ viewpoints. The present experiment (N: 141) on the acquisition of the notion of volume shows that when brought to systematically alternate their interventions in an interaction situation, subjects progress relatively more as compared to a control group (individual condition), than subjects who interact without obligation to alternate.     

Effects of morphological instruction on vocabulary acquisition

The effects of a 20-session intervention targeting morphological word structure on vocabulary knowledge were investigated in four Grade 4 and 5 classes, assigned randomly to treatment and control conditions. Hierarchical regression analyses controlling for initial vocabulary showed significant instructional effects on morphological analysis and vocabulary with words that were taught directly and novel words built on bases that were taught in the context of other derivations, but not for words with untaught bases. Results indicated that the treatment group made better use of pre-test vocabulary knowledge in learning new vocabulary. Results are discussed in light of the growing debate regarding whether to teach many words in a shallow way or to provide deep, rich instruction about fewer words.     

Interaction and instruction in the conservation experiment

Though there has been considerable research in recent years into the ways in which children’s performance in conservation experiments is affected by the context of interaction, this has so far lacked a coherent theoretical basis. In this article, concepts from communication theory are applied to the behaviour of experimenter and subject in the experimental situation. It is argued that the child behaves according to the «metacontract» of a teacher-pupil interaction, i.e. he or she expects to receive instruction. In the classical conservation experiment of Piaget, these expectations are thwarted, because the experimenter does not conform to the rules of a teacher-pupil relationship. Instead, the experimenter follows the rules of a different metacontract—that of examination. In experiments where conservation abilities are taught, and in group interactions where conserving children cooperate with non-conserving children, the participants do behave according to the same metacontract. But the value of these studies is reduced by the exclusive attention paid to the eventual achievements of the child, instead of the cognitive processes during the learning phase.     

The effect of blended instruction on accelerated learning

While online instructional technologies are becoming more popular in higher education, educators’ opinions about online learning tend to be generally negative. Furthermore, many studies have failed to systematically examine the features that distinguish one instructional mode from another, which weakens possible explanations for why online instructional technology can be beneficial. The current study isolates three benefits of the authors’ particular online instructional technology: (1) providing flexibility in how students learn, (2) offering immediate and targeted feedback and (3) increasing student participation and engagement with instructional material. Maximum benefits were observed when students used the online instructional technology to prepare for their face-to-face class – that is, students with this blended instruction learned twice as much content in the same amount of time in comparison to students with face-to-face instruction alone, without creating an atypically high workload.     

The effect of perceived class mean on the evaluation of instruction

A total of 232 college students in six different courses in three departments participated in a study to examine the effect of perceived course mean on course and instructor evaluations. Following a midsemester exam, students were given their actual earned exam scores and a manipulated class mean that was either ten percentage points higher or lower than the actual class average on the exam. Participants then completed an evaluation of the course and instructor. It was hypothesized that students scoring above the manipulated mean would rate the course and instructor more highly than students scoring below the manipulated mean. It was further hypothesized that students who were told that the class mean was higher would rate the course and instructor more highly than students who were told that the mean was lower. Results supported the first hypothesis. However, hypothesis two was not supported. Students receiving the lower manipulated class mean rated instructors more favorably. Results suggest the need to consider both individual exam scores and class averages in understanding the grade-teaching evaluation relationship.     

The effect of instruction on early nonword reading strategies

This paper reports the results of a study examining the role of early reading instruction on the nonword reading strategies employed by beginning readers. Three groups of children given different styles of reading instruction were asked to read a list of nonwords presented (a) in isolation and (b) using the clue word technique (Goswami, 1986, 1988). The three groups of children were following either (i) the Early Reading Research project (small units instruction), (ii) the National Literacy Project (instruction emphasising onset‐rime and rhyme awareness), or (iii) usual classroom practice (combined large and small units instruction). Children given small units instruction (Early Reading Research) were found to make significant use of grapheme‐phoneme correspondences (GPCs) and were more accurate than the other two groups of children at reading the nonword items. The National Literacy Project children demonstrated a preference for a rime‐based strategy, once familiarity with the analogous words was controlled, and made significantly more use of this strategy than the Early Reading Research children. The results suggest that early reading instruction does have a significant impact on early reading strategies and should be taken into account in future studies of this type.     

Training versus instruction in the acquisition of cognitive learning strategies

As various cognitive learning strategies have been identified and shown to be useful, the question of how best to teach an individual to use these techniques becomes important. Two studies compared simple instruction to more extended training. In Experiment 1 training was found superior to simple instructions with the method of loci for serial recall learning. Training in generalizable strategies involving imagery, verbal elaboration, and grouping was compared to simple instruction for a reading comprehension task in Experiment 2. Training was found to be more effective than instruction with a short-answer test over easy reading material, but not with difficult readings or multiple-choice tests.     

Reading acquisition of preschool children without systematic instruction

The case study method was used to investigate the reading development of six preschool children who learned to read at home without systematic intruction. The main objectives of the study were (1) to find out whether there was an identifiable process by which these children learned to read and (2) to study the role of the parents in these children's early reading acquisition. Findings indicate (1) an evolving process of reading acquisition for each subject; (2) a strong similarity in the process of reading acquisition across subjects; (3) a sequential nature of reading development in the six children; and (4) the instrumentality of parents in facilitating the reading development of their children (although parents' help seemed to be mostly spontaneous, intuitive, and unplanned). Based on findings of this study, a model is proposed to describe possible stages in the reading development of preschool children who do not experience systematic instruction.     

Effects of peer-mediated instruction on the acquisition and generalization of written capitalization skills

This study investigated the effects of a peer teaching procedure, combined with student letter-writing activities, on the acquisition and generalization of capitalization skills. Three students, aged 9 years, obtained instruction from peer partners that included (a) an introduction and review of capitalization rules, (b) feedback on each participant's previous capitalization work, and (c) guided and independent practice on sentences that required capitalization. All three students demonstrated acquisition of the capitalization rules after participating in the teaching sessions with one or two peer partners. In addition, there were increases in capitalization accuracy in participants' letters to peers who did not serve as teaching partners, thus demonstrating a measure of across-peer (stimulus) generalization. Mixed results were obtained on a response generalization task (sentence writing). Finally, sentencing-writing activities also showed that two of the peer partners substantially improved their use of capitalization skills as a result of teaching the target students.     

The effect of instruction on socio-cultural beliefs hindering the learning of science

Although recent studies have shown that the sociocultural characteristics which children in non-western society bring into the classroom from their environment create a wedge between what they are taught and what they learn, very little has been done to solve the problem. A learner who is not positively disposed to, or has a socio-cultural background that is indifferent to, learning science would find it hard to learn science effectively. This study investigated whether instruction through the use of the socio-cultural mode has any significant effect on students' attitude towards the learning of science. The sample consisted of 600 senior secondary year-one students (442 boys, 158 girls) from 15 secondary schools in Nigeria. The Socio-Cultural Environment Scale (SCES) and the Biology Achievement Test (BAT) were used to measure the change in attitude and achievement of subjects in a pretest-posttest situation after a six-week treatment. Evidence was found to support the hypothesis that science instruction which deliberately involves the discussion of socio-cultural views about science concepts engenders positive attitudes towards the study of science. The findings also indicate that anthropomorphic and mechanistic views can be presented in such a way as to promote positive attitudes towards the study of science in traditional cultures.     

The effect of phonics instruction on the reading comprehension of beginning readers

This study investigated whether two groups of6-year-old beginning readers taught to read by aphonics and by a ``book experience' non-phonicsapproach would differ in reading comprehension as wellas the processes of word recognition. The two groupswere matched for word recognition but despite this, thephonics taught children had higher readingcomprehension. Phonics taught children produced morecontextually appropriate errors, and in both singleword and text reading made more spoken attempts atreading unknown words. The non-phonics taught childrenhad much faster reading reaction times to familiarwords but they scored less in phoneme segmentation andnonword reading tasks. Compared with the nonphonicsgroup, the phonics group spent more time in attemptsat identifying unknown words and this included usingcontextual information, which apparently resulted inmore rehearsal of the meaning of the story text andhence better reading comprehension performance.     

Effects of relating mathematics to science instruction on the acquisition of quantitative science behaviors

Does it make sense to include mathematics instruction in science classes? Is there empirical support for Gagne's task analysis?     

The effect of multimedia instruction for Chinese learning

In Taiwan, lectures are commonly used for younger students to learn their own language, which is traditional Chinese. Passively listening to lectures has led to this group of students making such mistakes as forgetting strokes and word meanings, combining phrases to create incomprehensible blurs of information, and switching radicals with phonetic characters. Thus, the rationale of this study is that better and longer lasting Chinese learning results will occur when a combination of well‐designed texts, audio, graphics, animation, and hands‐on practice are employed. A multimedia system with computer‐based courseware in combination with added, assistive technologies including sound equipment, digital boards, and pens was developed based on this rationale. This study used a treatment group who used the system and a comparison group who received lectures. The subjects were 41 second graders in a southern city in Taiwan and all of them received the same pretest, immediate posttest, and the delayed posttest. Even though some of the differences between the two groups did not reach statistical significance, the results revealed that the treatment group consistently performed better than the comparison group in almost all the areas of competencies in both posttests.     

The effect of redundant text in multimedia instruction

The purpose of this study was to examine the redundancy effects obtained when spoken information was duplicated in writing during the learning of a multimedia document. Documents consisting of diagrams and spoken information on the development of memory models were presented to three groups of students. In the first group, no written text was presented. In the second, written sentences redundant with the spoken information were progressively presented on the screen while in the third group, these written sentences were presented together. The results show that whatever the type of text presentation (sequential or static), the duplication of information in the written mode led to a substantial impairment in subsequent retention and transfer tests as well as in a task in which the memorization of diagrams was evaluated. This last result supports the hypothesis that the visual channel is overloaded as the cognitive theory of multimedia learning suggests.