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1.
Early, effective instruction to introduce both science vocabulary and general academic language may help children build a strong conceptual and linguistic foundation for later instruction. In this study, a design research intervention was employed to expose children to a variety of interrelated science content words to increase both the breadth and the depth of their vocabularies. This 8-week intervention targeted specific science content vocabulary development through adapting teachers' practices to include use of three instructional techniques: Teachers interactively read aloud information books, engaged students in conversation, and provided hands-on science activity centers. Results demonstrated that children deepened their understanding of the targeted vocabulary words.  相似文献   

2.
勾勒出一个教学环境中第二语言词汇习得的心理语言学模式。从二语词库里词条的进化方式来考虑,二语词汇习得可看作由三个阶段组成:形式阶段、一语词目介入阶段和二语融合阶段。据证明,由于二语的学习受到实际的制约,所以大多数二语词汇在第二阶段就僵化了。在此基础上,总结二语词汇表征的三个突出特点。  相似文献   

3.
词汇在语言习得中起着至关重要的作用。心理词汇是从心理语言学的角度阐释词汇是如何在人脑中被储存和提取的。以心理词汇的相关理论为基础,从两种语义记忆模型储存心理词汇、激活心理词汇和影响词汇提取的主要因素几个方面出发,探讨心理词汇对大学英语词汇教学的一些启示,将有助于提高词汇习得的效率,促进大学英语词汇教学水平的进步。  相似文献   

4.
To enhance the basal vocabulary instruction for kindergarten students at risk for reading difficulties, lessons provided in typical curricular materials can be supplemented with instructional elements derived from research. This article addresses how teachers can add 15 minutes of higher order instructional activities to daily reading lessons to deepen students’ understanding of target vocabulary and offer multiple exposures to the words in different contexts. This enhanced basal vocabulary instruction model was field tested in two configurations of the kindergarten reading block to refine the procedures. These experiences provide insights into how the model can feasibly be implemented in small‐ or whole‐group formats to improve students’ learning and engagement.  相似文献   

5.
There is reliable evidence that new vocabulary is primarily acquired through wide independent reading. However, struggling readers tend to avoid reading, resulting in limited word encounters and inadequate vocabulary growth, and they often have difficulties inferring the meanings of new words from context. While there are no clear solutions to the problem of vocabulary acquisition for older students with reading difficulties, there are instructional approaches that have some evidence of effectiveness for this population. We describe the research base and promising practices related to three aspects of vocabulary instruction: (1) creating a verbal learning environment that fosters word consciousness, (2) selecting and teaching specific words, and (3) teaching an independent word learning strategy through a combination of contextual and morphemic analysis. These instructional approaches are grounded in overarching principles recognized by researchers as being characteristic of effective instruction for students with learning difficulties, including explicit instruction, promoting cognitive and collaborative engagement, and providing many opportunities for practice, including distributed practice, with teacher feedback. Finally, we discuss the possibilities inherent in a cross‐content schoolwide approach to vocabulary instruction at the secondary level. We conclude with a call for additional research examining the effectiveness of instructional approaches to vocabulary development for secondary school students with reading difficulties, including a schoolwide collaborative model.  相似文献   

6.
The purpose of this study was to investigate the impact of imagery interventions on the vocabulary acquisition abilities of second grade students. A total of 15 students were randomly assigned to three different intervention conditions: Word Only, which involves the simple verbal presentation of a vocabulary word; Dual Coding, in which a picture was paired with the vocabulary word, and Image Creation, in which students were told to create a mental picture of the vocabulary word in their mind and draw it on paper. These students were taught a total of 21 vocabulary words: seven animal and habitat words, seven musical instrument terms, and seven science terms. A Latin square design was used, in which each group of students rotated through each of the interventions, being exposed to a different treatment condition for each category of words. Participants were measured on the number of words they were successfully able to acquire through the use of experimenter designed comprehension measures. While no statistical significance was shown between the interventions across the word categories, a significant difference was found between the Image Creation and Word Only interventions within the science terms category. Students also reported that the imagery interventions facilitated the ease with which they learned the words. The findings have implications for increasing the success of classroom instruction, specifically for presenting novel vocabulary words to early elementary learners using imagery methods.  相似文献   

7.
词汇教学是英语教学中的一个重要环节。心理词汇的研究对英语词汇教学有一定的指导作用。本文从二语心理词汇表征与发展模型的角度探讨了其对英语词汇教学的启示。  相似文献   

8.
从词汇构建的初始阶段——词汇认知出发,通过对107名低水平英语学习者英文单词的对应中文词进行测试分析,发现学生词汇认知错误可表征为词形、词义及形义错误,造成学生词汇认知错误的原因受到教、学过程,心理词汇存储和提取以及母语干扰等诸多因素的制约。  相似文献   

9.
The Critical Role of Vocabulary Development for English Language Learners   总被引:2,自引:0,他引:2  
English language learners (ELLs) who experience slow vocabulary development are less able to comprehend text at grade level than their English‐only peers. Such students are likely to perform poorly on assessments in these areas and are at risk of being diagnosed as learning disabled. In this article, we review the research on methods to develop the vocabulary knowledge of ELLs and present lessons learned from the research concerning effective instructional practices for ELLs. The review suggests that several strategies are especially valuable for ELLs, including taking advantage of students' first language if the language shares cognates with English; ensuring that ELLs know the meaning of basic words, and providing sufficient review and reinforcement. Finally, we discuss challenges in designing effective vocabulary instruction for ELLs. Important issues are determining which words to teach, taking into account the large deficits in second‐language vocabulary of ELLs, and working with the limited time that is typically available for direct instruction in vocabulary.  相似文献   

10.
Although vocabulary plays an important role in literacy and content instruction, there is a paucity of research identifying effective methods for teaching vocabulary. One promising strategy is morphemic analysis, which involves breaking words into morphemes, the smallest meaningful parts of words, and teaching students the meanings of those parts. The current study used a multiple probe across morphemes experimental design to determine the effects of an intervention package, GO FASTER (G raphic O rganizers; F lashcards A dded up and S elf‐graphed to T rack progress; E rrors R eviewed). Findings showed that with three to four instructional sessions, three high school students with high‐incidence disabilities successfully defined morphemes at a predetermined fluency rate and generalized these definitions to untaught words. Implications for practice and future research are discussed.  相似文献   

11.
本研究旨在通过词汇联想测试来探究低层次EFL(英语作为外语)学习者心理词汇之间的联系、表征特征及其组织形式,以期揭示出英语词汇习得的规律,进而帮助低层次EFL学习者更科学、更合理地提高词汇学习和词汇习得的效率。研究发现,受试者心理词汇的存储模式呈现出"横组合"与"纵聚合"的联想关系,并且从总体上来说,低层次EFL学习者心理词汇依照"横组合"关系存储的数量要多于依照"纵聚合"关系来存储的数量;同时,研究结果并不支持"中国EFL学习者心理词汇之间的联系主要是语音的"这一说法。  相似文献   

12.
The goal of this longitudinal study was to examine how lexical quality predicts the emergence of literacy abilities in 169 Dutch kindergarten children before formal reading instruction has started. At the beginning of the school year, a battery of precursor measures associated with lexical quality was related to the emergence of letter knowledge and word decoding. Confirmatory factor analysis evidenced five domains related to lexical quality, i.e., vocabulary, phonological coding, phonological awareness, lexical retrieval and phonological working memory. Structural equation modeling showed that the development of letter knowledge during the year could be predicted from children’s phonological awareness and lexical retrieval, and the emergence of word decoding from their phonological awareness and letter knowledge. It is concluded that it is primarily the accessibility of phonological representations in the mental lexicon that predicts the emergence of literacy in kindergarten.  相似文献   

13.
This study used a within-subjects design to explore two instructional conditions for developing vocabulary in second-grade Spanish-speaking English learners (ELs)—extended instruction and embedded instruction implemented during shared interactive reading. Words assigned to the extended condition were directly taught using a multifaceted approach that included visuals, bilingual definitions, examples, spelling, and partner-talk about the words’ meaning. Words assigned to the embedded condition were taught solely through brief definitions to embedded text, writing activities, and songs. In the control condition students heard the target words read aloud during shared interactive reading but without definitions or direct instruction. The study also explored the interaction between instructional condition and word type. Four types of words—abstract cognates, abstract noncognates, concrete cognates, and concrete noncognates—were randomly assigned to each condition. Nine teachers in four schools and 187 second-grade ELs participated in this within-subjects intervention, which took place in transitional bilingual classrooms. Findings indicated that across all word types, both extended and embedded instruction were more effective than the control condition in helping ELs acquire vocabulary. Findings also indicated that extended instruction was more effective then embedded instruction for all word types except concrete cognates suggesting that these young Spanish-speaking ELs were advantaged by word knowledge in their home language. Finally, while embedded instruction was less effective than extended instruction, it was much more effective than a control condition. Embedded instruction takes significantly less preparation and instructional time than extended instruction, offering teachers a practical way to teach more vocabulary to ELs.  相似文献   

14.
To a science ‘outsider’, science language often appears unnecessarily technical and dense. However, scientific language is typically used with the goal of being concise and precise, which allows those who regularly participate in scientific discourse communities to learn from each other and build upon existing scientific knowledge. One essential component of science language is the academic vocabulary that characterises it. This mixed-methods study investigates middle school students’ (N?=?59) growth in academic vocabulary as it relates to their teacher’s instructional practices that supported academic language development. Students made significant gains in their production of general academic words, t(57)?=?2.32, p?=?.024 and of discipline-specific science words, t(57)?=?3.01, p?=?.004 in science writing. Results from the qualitative strand of this inquiry contextualised the students’ learning of academic vocabulary as it relates to their teacher’s instructional practices and intentions as well as the students’ perceptions of their learning environment. These qualitative findings reveal that both the students and their teacher articulated that the teacher’s intentional use of resources supported students’ academic vocabulary growth. Implications for research and instruction with science language are shared.  相似文献   

15.
This article addresses the serious and growing need to improve science instruction and science achievement for all students. We will describe the results of a 3-year study that transformed science instruction and student achievement at two high-poverty ethnically diverse public elementary schools in Texas. The school-wide intervention included purposeful planning, inquiry science instruction, and contextually rich academic science vocabulary development. In combination, these instructional practices rapidly improved student-science learning outcomes and narrowed achievement gaps across diverse student populations.  相似文献   

16.
Many journal articles detail recommendations to naturally integrate literacy instruction into content-area classes, particularly science, claiming that such instructional practices will support both literacy and content-knowledge acquisition. This begs the question, are the literacy strategies recommended for content-area instruction founded in established educational theories? The purpose of the current study is to examine the implicit and explicit theories driving science disciplinary literacy instruction. Theories assist in organizing and advancing research in a systematic manner. Information on the status of theory is essential to both practitioners (who are implementing strategies) and researchers (who are making recommendations for classroom instruction). Our study revealed that in science literacy, vocabulary instructional practices are frequently supported with Schema and Dual-Coding theories. Articles also frequently used theories grounded in social dynamics, including social constructionism and sociocultural perspective, to support literacy instruction. However, recommendations for other aspects of instructional practices in science literacy are generally not well-grounded in major reading theories.  相似文献   

17.
The mental lexicon plays a central role in reading comprehension (Perfetti & Stafura, 2014). It encompasses the number of lexical entries in spoken and written language (vocabulary breadth), the semantic quality of these entries (vocabulary depth), and the connection strength between lexical representations (semantic relatedness); as such, it serves as an output for the decoding process and as an input for comprehension processes. Although different aspects of the lexicon can be distinguished, research on the role of the mental lexicon in reading comprehension often does not take these individual aspects of the lexicon into account. The current study used a multicomponent approach to examine whether measures of spoken and written vocabulary breadth, vocabulary depth, and semantic relatedness were differentially predictive of individual differences in reading comprehension skills in fourth-grade students. The results indicated that, in addition to nonverbal reasoning, short-term memory, and word decoding, the four measures of lexical quality substantially added (30 %) to the proportion of explained variance of reading comprehension (adding up to a total proportion of 65 %). Moreover, each individual measure of lexical quality added significantly to the prediction of reading comprehension after all other measures were taken into account, with written lexical breadth and lexical depth showing the greatest increase in explained variance. It can thus be concluded that multiple components of lexical quality play a role in children’s reading comprehension.  相似文献   

18.
Research Findings: The present study compared effects of explicit instruction on and practice with the phonological form of words (form-focused instruction) versus explicit instruction on and practice with the meaning of words (meaning-focused instruction). Instruction was given via interactive storybook reading in the kindergarten classroom of children learning Dutch. We asked whether the 2 types of instruction had different effects on vocabulary development and 2 precursors of reading ability—phonological awareness and letter knowledge—and we examined effects on these measures of the ability to learn new words with minimal acoustic-phonetic differences. Learners showed similar receptive target-word vocabulary gain after both types of instruction, but learners who received form-focused vocabulary instruction showed more gain in semantic knowledge of target vocabulary, phonological awareness, and letter knowledge than learners who received meaning-focused vocabulary instruction. Level of ability to learn pairs of words with minimal acoustic-phonetic differences predicted gain in semantic knowledge of target vocabulary and in letter knowledge in the form-focused instruction group only. Practice or Policy: A focus on the form of words during instruction appears to have benefits for young children learning vocabulary.  相似文献   

19.
We conducted two case studies to evaluate the effectiveness of individualized remedial reading instruction linked to direct measures of student learning and transfer. The participants were two first grade children at serious risk of reading failure. The instruction targeted decoding of one syllable short vowel words and first emphasized onset-rimes and then phoneme manipulation. Forty words organized into 10 rime patterns were targeted for instruction. Probes consisting of all the instructional words were administered before each instructional session to monitor student progress. We also administered transfer probes to determine if the children could apply their knowledge more broadly. Instruction with onset-rime units yielded excellent maintenance and near transfer (novel words containing instructed rimes) but not far transfer (novel words derived from uninstructed rimes). The instructional change to phoneme manipulation yielded better far transfer for one of the two children. We consider the importance of administering measures that assess more than what is taught to get an accurate portrait of children’s responsiveness to instruction.  相似文献   

20.
心理词汇又称作心理词典,是“永久性储存在于记忆中的词及词义的心理表征”。心理词汇层级扩展激活指“激活始于一个点,然后平行扩散到整个网络的其他点”。心理词汇的层级扩展激活模型的研究为词汇教学的改进提供了理论依据。这一模型的优势在于把心理词汇的提取放到了网络的整体中,分别关注到了横向和纵向两个相关联的层面,由此对实际的英语词汇教学带来极大的启示。  相似文献   

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