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1.
《Learning and Instruction》2003,13(2):227-237
Multimedia learning environments combine multiple forms of representations like texts, static and animated pictures or graphs. Knowledge acquisition from multiple representations requires that the learner create referential connections between corresponding elements and corresponding structures in different representations. As this process is usually difficult, learners frequently fail to construct coherent mental representations and, thus, do not sufficiently understand the subject matter. This paper analyzes the effects of different kinds of instructional help on the process of coherence formation from multiple representations by learners with different prior knowledge. Three groups of university students with different domain-specific knowledge had to learn a complex subject matter from chemistry using six different forms of representation. In addition, a first group received directive help for coherence formation. A second group received non-directive help, and a third group received no instructional help. Results indicate that directive help is effective for recall performance because of its summarizing and repeating function. Furthermore, learners with different levels of prior knowledge show different reactions when help is given. For learners with insufficient prior knowledge help is not helpful or, in case of recall performance, even harmful. Learners with a medium level of prior knowledge can increase especially their comprehension performance when help is offered, whereas learners with too much prior knowledge seem not to be affected by help.  相似文献   

2.
Learners learn more from spatially separated text and pictures after they have been instructed to physically integrate these sources than without such an instruction. We investigated whether instructing learners to mentally integrate textual and pictorial information would yield similar results. Eighty-seven participants studied a picture with accompanying text about an electrical circuit. Text and picture were presented as spatially separated sources or in an integrated format. In the separated format, participants were instructed to use (1) a mental learning strategy, (2) a physical learning strategy, or (3) no learning strategy. Participants in the separated condition using a mental learning strategy and the integrated condition obtained higher recall and comprehension (but not causal inference) performance than participants in the separate conditions with the physical- or no learning strategy. This indicates that instructing learners to mentally integrate spatially separated text and pictures when studying split-attention material can be an effective learning strategy.  相似文献   

3.
译文语篇生成过程是一个将原语语篇连贯表征下的心智连贯转化为基于相似心智连贯的译语语篇连贯表征的过程。在译文生成过程中,译者应充分考虑两种语言在连贯性表征上的差异,分析目标读者解读译文时的认知世界,恰当建构译文连贯性。  相似文献   

4.
本文以不同英语水平的中国英语学习者为研究对象, 采用命名实验和关键句阅读实验的在线研究方法, 着重考察了语篇因果制约度和读者的二语水平对语篇理解中预期推理的激活和编码的影响。 研究结果表明:1)在二语语篇阅读过程中, 语篇的因果制约度影响预期推理的即时激活, 当语篇因果制约度高时, 读者易做出预期推理;2) 在二语语篇阅读过程中, 预期推理概念的激活受读者语言水平的影响, 高级英语水平 读者能够在较低水平上即时激活预期推理概念, 而中级语言水平读者预期推理概念不能即时激活;3) 对于高 级英语水平读者 ,预期推理能够在激活后保存于读者工作记忆并编码于语篇短时记忆表征, 但这种编码只是 一种部分编码 。  相似文献   

5.
Schema theory is an influential approach to text comprehension, which can account for inferring process in L2 text reading. According to the schema theory, comprehending a text is an interactive process between the reader's prior knowledge(top-down processing) and the text(bottom-up processing). Both top-down and bottom-up processing are necessary for the inferring in reading comprehension. This paper explores how good and poor Chinese learners adopts top-down processing and bottom-up processing to make inferences in L2 reading, and finds some differences and similarities in using textual materials and background knowledge to make inferences in L2 reading by good and poor Chinese EFL learners respectively.  相似文献   

6.
Learners often have difficulties comprehending multiple texts about controversial scientific issues. In particular, learners with strong prior beliefs tend to construct a one-sided mental representation that is biased towards belief-consistent information (text-belief consistency effect). In the present study we examined the effectiveness of information of three metacognitive strategies tailored to strengthen the comprehension of belief-inconsistent information during multiple text comprehension. According to theories of self-regulated learning, knowledge about relevant metacognitive strategies improves comprehension only when learners are also motivated to use these strategies. These hypotheses were investigated in an experiment in which 85 participants read one belief-consistent and one belief-inconsistent text about a controversial scientific issue. Participants either received information about three metacognitive strategies or no additional information. In addition, participants’ motivation was manipulated by providing them with either negative or positive performance feedback or no feedback. As predicted, a text-belief consistency effect was found, which was eliminated by strengthening the situation model for the belief-inconsistent text only when learners received information about relevant metacognitive strategies and were motivated to use these strategies after positive performance feedback.  相似文献   

7.
Causality has been singled out by several researchers as an important factor in text comprehension and memory. The basic assumption underlying this view is that the perception of causal ties between elements in a text binds the text elements together and enables the reader to construct a coherent representation of the text in memory. Although research findings indicate that causality is a strong predictor of comprehension in narrative texts, the role that causality plays in the comprehension of expository texts has received relatively little attention. In the research reported in this article, a profile of causal development in ten-year-olds was built up on the basis of their recall of history and science texts in which the amount of causal connectivity differed. Four variables were identified and measured, namely length of recall protocols, amount of causal connections recalled from original test passages, amount of causal density and causal hierarchicalization created in the recall protocols. The results of the recall test were also compared to the subjects' English grades. The findings indicate that causal connections play an important role in expository text recall, and that subjects who have a strong causal profile also, generally, perform well in English. The research and pedagogical implications of these findings for reading and writing skills are discussed.  相似文献   

8.
Students participated in a study (n=98) investigating the effectiveness of three types of annotations on three learning outcome measures. The annotations were designed to support the cognitive processes in the comprehension of scientific texts, with a function to aid either the process of selecting relevant information, organizing the information in memory, or integrating information with prior knowledge. Learning outcomes were measured by assessing student recall of facts, comprehension of the text, and mental model construction. Results show that different types of annotations facilitate different learning outcomes. In addition, we found that, compared to having only one type of annotation available, multiple types of annotations resulted in a higher cognitive load that resulted in lower performance, especially in tests of higher-level processing. This effect was stronger for low-verbal-ability learners, who showed lower peformance in treatments with multiple types of annotations than high-verbal-ability learners.  相似文献   

9.
Prior to studying an instructional text, college students were given either a topically relevant outline or a topically irrelevant (control) outline and asked to generate propositions about the topics by drawing upon their existing knowledge. The results indicate that comprehension was highest among those students who activated relevant prior knowledge before text study, and who were again provided with an outline of that knowledge during testing. The measure of comprehension used here was total meaningful recall: It included text propositions plus valid elaborations based on the interaction of text information and students’ existing knowledge. The results of conceptual clustering analyses suggest that organization was one of the mechanisms by which topical outlines increased meaningful recall. Additional analyses conducted only on the elaborations indicate that students produced more of them during long-term (six week) recall than during immediate recall.  相似文献   

10.
在大学英语阅读教学中,语篇结构知识有助于宏观理解,对那些使语篇得以保持衔接连贯的因素的分析有利于理解语篇的建构过程。其中,对衔接手段的分析有助于在语篇表面快速把握文章的发展脉络,对评价资源的分析有助于准确解读文章如何实现语义层的连贯。根据语篇结构的不同,两种分析方法相互渗透,交替使用,可增强学生的语篇理解能力。  相似文献   

11.
The present research tested how domain-related knowledge influences inference generation during text comprehension. Two types of inference were examined, those that maintained referential coherence, referred to as local inferences, and those that were anticipatory in nature, referred to as global inferences. Three groups of subjects, each with differing degrees of domain knowledge, read a domain-related text that included both types of inference. It was found that all knowledge groups processed sentences involved in local inferences similarly, presumably because establishing text coherence is essential to comprehension. However, knowledge differences emerged in the processing of the sentences involved in global inferences. The results of two experiments suggested that individuals with prior knowledge used their knowledge actively to generate global inferences during reading. It was argued that this anticipatory inferential process guides the construction of a mental model of a text, built partly with explicit information and partly with existing knowledge.  相似文献   

12.
13.
本文从篇章结构、篇章衔接与连贯、篇章策略三个方面讨论思维模式的差异对英汉两种语言的语篇造成的影响,帮助学习者认识与区别英汉语篇的组织规则与特征,从而顺利实现跨文化交际的目的。  相似文献   

14.
The study compared the comprehension processes and outcomes obtained with refutation and expository text and their association with learning outcomes. After a knowledge pretest, undergraduate students read an extended expository text or a corresponding refutation text that addressed three potential misconceptions about the scientific concept of energy. Think-aloud, cued recall, and posttest data indicated that the positive impact of refutation text was more associated with comprehension outcomes than processes. Refutation text did not influence comprehension processes but facilitated valid inference generation in recall and minimized the negative effects of distortions on learning. The findings suggest the timing of the refutation text effect to be later, after reading, and its nature to be that of neutralizing the influence of any misconceptions on learning from text instead of changing them.  相似文献   

15.
We examined text memory in children with word reading deficits to determine how these difficulties impact representations of text meaning. We show that even though children with poor word decoding recall more central than peripheral information, they show a significantly bigger deficit relative to controls on central than on peripheral information. We call this the centrality deficit and argue that it is the consequence of insufficient cognitive resources for connecting ideas together due to these children’s resources being diverted from comprehension to word decoding. We investigated a possible compensatory mechanism for making these connections. Because a text representation is a synthesis of text information and a reader’s prior knowledge, we hypothesized that having knowledge of the passage topic might reduce or eliminate the centrality deficit. Our results support this knowledge compensation hypothesis: The centrality deficit was evident when poor readers did not have prior knowledge, but was eliminated when they did. This presents an exciting avenue to pursue for possible remediation of reading comprehension in children with word identification difficulties.  相似文献   

16.
The purpose of this study was to explore the influence of reading comprehension on the acquisition of word meanings from context and to compare it to the effects of local context characteristics, such as proximity and directness of context clues. The study also examined the effects of prior topic and enabling concept knowledge. Sixth-grade students were pretested on their knowledge of target vocabulary from two expository passages appropriate for their grade and reading level. The students were then familiarized with selected main concepts from one passage and, subsequently, read both experimental passages. Half of the target words appeared in an informative context, while the rest appeared in an less-informative context. A comprehension test and a vocabulary posttest followed the reading of each passage. Hierarchical Regression analyses indicated that reading comprehension level and prior main concept knowledge facilitated vocabulary learning from context. In comparison, the effect of presence or absence of informative context clues was not significant. These findings, underline the need for a reconceptualization of context to take into account the mental representation that readers construct in addition to the printed text that surrounds an unfamiliar word.  相似文献   

17.
Many studies have demonstrated the facilitating role of rhetorical devices in text comprehension, but there are also studies where rhetorical devices have not shown such effect. The present study sets out to explore whether readers’ knowledge of rhetorical devices (that is, rhetorical competence) moderates their effectiveness beyond general comprehension skills and, consequently, whether rhetorical competence may be considered a component skill of reading comprehension. 192 sixth- to seventh-grade students were assessed on rhetorical competence and were required to read a difficult marked text with specific rhetorical devices (a refutation, an objective, and four organizational signals) or the same text without them. After reading, students produced a summary in order to obtain three dependent variables: main ideas (as a measure of participants’ ability to select relevant information from the text), causal links between them (as an indicator of participants’ ability to grasp the logical structure of the text and to organize its ideas), and the combination of main ideas plus causal links (as an indicator of participants’ global comprehension of the text). Analyses controlling for general comprehension skills and other important variables (working memory, prior knowledge, decoding) demonstrated that: (a) readers of the marked text scored higher in terms of all dependent variables, and (b) rhetorical competence level moderated the effect of rhetorical devices on the composite measure (main ideas plus causal links) and on the organization of the summary by means of causal links.  相似文献   

18.
The study is situated at the interface between reading comprehension and critical thinking research. Its purpose was to examine the influence of reading goals and argument quality on the comprehension and critical evaluation of argumentative texts. Young adult readers read to comprehend or evaluate texts on two different controversial issues. Argument quality was varied across text versions on the basis of the hasty generalization fallacy. Text versions varied with respect to the quality of the arguments included, but not in terms of argument content. Measures of comprehension included main claim recall, overall recall and inferences in recall. Text evaluation was measured with a rating task. The sample’s familiarity with the text topics was low, and prior beliefs were relatively neutral. The results indicated that an evaluation goal had a consistent positive effect on main claim and text recall when compared to comprehension goal. Argument quality, however, had no main or interactive effects on text evaluation. The findings indicate that reading to evaluate argumentative text facilitates the representation of its content and critical argument elements, such as the claim it promotes. However, this representation is not sufficient for analyzing and critically evaluating the text’s argument line. The implications of these findings are discussed in relation to current efforts to promote critical-analytic thinking skills in the context of reading and writing.  相似文献   

19.
The goal of this study is to examine the comprehension of global causal and temporal relations between events that are represented in single hypertext documents. In two experiments we examined how reading sequences of hypertext nodes affects the establishment of event relations and how this process can be supported by advanced organizers that provide either temporal or causal pre-information. In the first experiment we could show that discourse structure affected recall of temporal event sequences only when causal relations were absent. In a second experiment, the comprehension of either temporal or causal relations was facilitated by providing different types of pre-information (advanced organizer). Temporal pre-information facilitated recall of temporal event sequences without underlying causal relations. In contrast, causal pre-information facilitated recall of temporal event sequences with causal relations. The results demonstrate that readers use causal information to construct temporal event sequences.  相似文献   

20.
The present study examined children's digital text comprehension of digital text types linear digital text vs hypertext, with or without graphical navigable overviews. We investigated to what extent individual variation in children's comprehension could be explained by lexical quality (word reading efficiency and vocabulary knowledge), cognitive load factors (prior knowledge and working memory), text type and graphical overview. Participants were 93 sixth graders in a within‐subject design. Word reading efficiency, vocabulary knowledge and prior knowledge predicted children's digital comprehension scores, while working memory did not. Reading comprehension was equal for linear text or hypertext. However, the presence of an overview facilitated reading comprehension for readers with lower prior knowledge. It can be concluded that hypertexts with basic digital text features and accompanying comprehension questions are not more difficult for children than linear digital texts, that similar individual factors predict reading comprehension of linear text and hypertext, and that a graphical overview helps when prior knowledge is low.  相似文献   

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