Explaining Constrains Causal Learning in Childhood

Three experiments investigate how self‐generated explanation influences children's causal learning. Five‐year‐olds (N = 114) observed data consistent with two hypotheses and were prompted to explain or to report each observation. In Study 1, when making novel generalizations, explainers were more likely to favor the hypothesis that accounted for more observations. In Study 2, explainers favored a hypothesis that was consistent with prior knowledge. Study 3 pitted a hypothesis that accounted for more observations against a hypothesis consistent with prior knowledge. Explainers were more likely to base generalizations on prior knowledge. Findings suggest that attempts to explain drive children to evaluate hypotheses using features of “good” explanations, or those supporting generalizations with broad scope, as informed by children's prior knowledge and observations.     

Preschool Teachers' Sense of Community,Instructional Quality,and Children's Language and Literacy Gains

Research Findings: This study investigated relations among preschool teachers' (n = 75) sense of community, classroom language and literacy instructional quality, and children's (n = 398) gains in vocabulary and print concept knowledge during an academic year. Hierarchical linear modeling (HLM) results indicated that teachers' language and literacy instructional quality significantly predicted children's gains in print concept knowledge. Also, HLM results revealed significant interactions among teachers' sense of community, language and literacy instructional quality, and vocabulary and print concept knowledge gains. Higher levels of teachers' sense of community were associated with greater gains in children's vocabulary and print concept knowledge when children were in classrooms with higher quality language and literacy instruction. Practice or Policy: Findings underscore the importance of evaluating both language and literacy instructional quality and teachers' sense of community when considering high-quality preschool education.     

Transitions to Competence: An Investigation of Adult Mediation in Preschoolers' Self-Regulation With a Microcomputer-Based Problem-Solving Task

The effectiveness of specific dimensions of adult mediation on preschoolers' self- regulation of a model-consultation strategy was evaluated using microcomputer puzzle tasks. Two trained tutors taught 61 children who were pretested and randomly assigned to one of four treatments devised to test two factors of mediation: access and analysis of a picture-puzzle model prior to or during problem solving. Tutorial interchanges of treatments were designed on the basis of the Vygotskian tenet that effective instruction includes a concern for children's actual and potential developmental levels and occurs through participation with others during problem solving. Measures of model-consultation were calculated from three videotaped sessions and used to assess children's self-regulation during treatment and in immediate and delayed posttests. Analyses revealed significant differences for the access and analysis effects in posttests, but only in the delayed posttest for the latter. Significant differences were found for the planned contrast in the delayed posttest. The study suggests that children's acquisition of the model-consultation can improve over a short period of time, although not immediately, with culturally mediated instruction and does not improve solely as a function of practice.     

Second Language Play as a Representation of the Multicompetent Self in Foreign Language Study

In this article I link 3 areas that have recently attracted (renewed) interest in second language acquisition (SLA) and applied linguistics research: (a) first language (L1) use in adult foreign language study; (b) adult second language (L2) play; and (c) adult language learner identity. In mainstream approaches to SLA and utilitarian conceptualizations of foreign language learning, L1 use typically is considered detrimental to L2 acquisition; L2 play is a superfluous activity that detracts from the serious business of language learning; analyst-sensitive examinations of learner-internal mechanisms in the process of SLA are emphasized over learner-sensitive studies of the language learner's identity in sociocultural context. Recent work, however, has brought new evaluations of these 3 areas. Antón and DiCamilla (1998) have found that L1 use may function as an advantageous metacognitive tool in L2 acquisition. Both Lantolf (1997, 2000) and Tarone (2000) have recently advanced theories of form-based L2 play in which play functions in the acquisition of L2 forms. Norton (2000) has investigated the importance of learners' social identity in L2 learning and use in the context of Canadian immigration. In this article, I suggest a new role for adult form-based L2 play in SLA theorizing. This type of play may not only aid in the acquisition of L2 forms but may also serve as a textual icon for learners' growing multicompetence (i.e., the distinct state of mind with 2 or more grammars; V. Cook, 1991, 1992). Multicompetence may have meaning for learners' sense of self and their ways of interacting with the world. Multilingual form-based play with language names (e.g., "English" and "German") and syntax in the written texts of advanced tutored learners of German are examined.     

A Cross-cultural Exploration of Children's Everyday Ideas: Implications for science teaching and learning

Children's everyday ideas form critical foundations for science learning yet little research has been conducted to understand and legitimize these ideas, particularly from an international perspective. This paper explores children's everyday ideas about the environment across the US, Singapore and China to understand what they reveal about children's relationship to the environment and discuss its implications for science teaching and learning. A social constructivist lens guides research, and a visual methodology is used to frame children's realities. Participants' ages range from elementary to middle school, and a total of 210 children comprized mainly of Asians and Asian Americans were sampled from urban settings. Drawings are used to elicit children's everyday ideas and analyzed inductively using open coding and categorizing of data. Several categories support existing literature about how children view the environment; however, novel categories such as affect also emerged and lend new insight into the role that language, socio-cultural norms and perhaps ethnicity play in shaping children's everyday ideas. The findings imply the need for (a) a change in the role of science teachers from knowledge providers to social developers, (b) a science curriculum that is specific to learners' experiences in different socio-cultural settings, and (c) a shift away from inter-country comparisons using international science test scores.     

Teachers' Professional Noticing

Teachers' instructional practice is pedagogically vulnerable when not anchored within detailed and comprehensive observation and understanding of students' immediate responses during instruction. Professional noticing ability, then, is central to, and integrated within, teachers' ability to provide instruction appropriately adapted to students' immediate needs. This article explicates a model of expert noticing for literacy instruction and relates this model to the characteristics of microadaptive teaching decisions. Characteristics, for example, that distinguish expert from less expert noticing during literacy instruction include detailed hypothesizing, breadth and depth of elaboration, observation of learners' metacognitive behavior, and identification of pivotal events. Teacher noticing ability is generally not related to years of experience, but can be learned through participation in sustained, multilevel professional development with an explicit focus on noticing ability. This complex learning integrates teachers' pedagogical and content knowledge with observation of student behaviors, and supports teachers' learning from practice.     

Effects of Home Literacy,Parents' Beliefs,and Children's Task-Focused Behavior on Emergent Literacy and Word Reading Skills

We examined the effects of home literacy (shared book reading, teaching activities, and number of books), children's task-focused behavior, and parents' beliefs and expectations about their child's reading and academic ability on kindergarten children's (N = 61) phonological sensitivity and letter knowledge and on Grade 1 word reading. The results showed that, after controlling for nonverbal IQ and vocabulary, home literacy instruction prior to kindergarten, parents' beliefs about their children's reading ability, and children's task-focused behavior were significant predictors of two or more of the dependent variables. Storybook reading did not account for unique variance in any of the dependent variables.     

Investigation of multiple human factors in personalized learning

In the past decade, a number of personalized learning systems have been developed and they mainly focus on learners' prior knowledge. On the other hand, previous research suggested that gender differences and cognitive styles have great effects on student learning. To this end, this study examines how human factors, especially gender differences and cognitive styles, affect learners' reactions to a personalized and non-personalized learning systems based on learners' prior knowledge. Forty-four university students participated in this study. The results show that females and Serialists show positive reactions to the personalized learning system, while males and Holists demonstrate similar reactions to the personalized learning system and the non-personalized learning system. The implications of these results for the design of personalized learning systems are discussed.     

Causal Connections Between Mathematical Language and Mathematical Knowledge: A Dialogic Reading Intervention

The acquisition of early mathematical knowledge is critical for successful long-term academic development. Mathematical language is one of the strongest predictors of children's early mathematical success. Findings from previous studies have provided correlational evidence supporting the importance of mathematical language to the development of children's mathematics skills, but there is limited causal evidence supporting this link. To address this research gap, 47 Head Start children were randomly assigned to a mathematical language intervention group or a business-as-usual group. Over the course of eight weeks, interventionists implemented a dialogic reading intervention focused on quantitative and spatial mathematical language. At posttest, students in the intervention group significantly outperformed the students in the comparison group not only on a mathematical language assessment, but on a mathematical knowledge assessment as well. These findings indicate that increasing children's exposure to mathematical language can positively affect their general mathematics skills. This study is an important first step in providing causal evidence of the importance of early mathematical language for children's general mathematical knowledge and the potential for mathematical language interventions to increase children's overall mathematics abilities.     

Big Math for Little Kids: The Effectiveness of a Preschool and Kindergarten Mathematics Curriculum

Research Findings: Big Math for Little Kids (BMLK) is a mathematics curriculum developed for use with 4- and 5-year-old children. To investigate the BMLK curriculum's effect on children's mathematics knowledge, this cluster-randomized controlled trial randomly assigned child care centers to provide mathematics instruction to children, using either the BMLK mathematics curriculum or the centers’ business-as-usual curriculum, over a 2-year period when children were in prekindergarten and kindergarten. Participants in the study were 762 children and their teachers at 16 publicly subsidized child care centers. The study assessed children's mathematics knowledge using the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B), Direct Mathematics Assessment, a measure of young children's mathematics knowledge that is not aligned with the curriculum. The ECLS-B scores of children in the BMLK group increased significantly more than did those of children in the comparison group. The study also included exploratory analyses to examine whether children in the BMLK group demonstrated evidence of improved mathematical language. Practice or Policy: These results indicate that the BMLK curriculum, which is designed to help teachers use play-based, developmentally appropriate mathematics instruction, has a positive impact on young children's mathematics knowledge as measured by a general mathematics assessment that is not aligned with the curriculum.     

Individual variation in children's reading comprehension across digital text types

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.     

Effects of textual enhancement on English as a foreign language learners' anaphor resolution performance and reading comprehension in Taiwan

Successful anaphor comprehension in reading is related to the explicitness of the antecedent–anaphor relation. It mirrors one of the purposes of textual enhancement (TE), which is that it raises learners' awareness of linguistic forms by enhancing the salience of input. Therefore, learners notice the enhanced form and discover the rule or relationship after they have become relatively explicit. This study investigates the effects of TE on second language learners' anaphor resolution performance and reading comprehension, to reveal the interaction among learners' comprehension, anaphor performance and noticing. Sixty EFL learners in Taiwan were divided into the control and TE groups. Participants' posttest responses were compared with respect to their anaphor resolution performance and their reading comprehension degree. The results showed that the TE group had better anaphor resolution performance, and participants' form processing did not impede their reading comprehension. These findings are discussed with both theoretical and pedagogical implications.     

The Effect of Teachers' Memory‐Relevant Language on Children's Strategy Use and Knowledge

Building on longitudinal findings of linkages between aspects of teachers' language during instruction and children's use of mnemonic strategies, this investigation was designed to examine experimentally the impact of instruction on memory development. First and second graders (N = 54, M_age = 7 years) were randomly assigned to a science unit that varied only in teachers' use of memory‐relevant language. Pretest, posttest, and 1‐month follow‐up assessments revealed that although all participating children learned new information as a result of instruction, those exposed to memory rich teaching exhibited greater levels of strategic knowledge and engaged in more sophisticated strategy use in a memory task involving instructional content than did students exposed to low memory instruction. The findings provide support for a causal linkage between teachers' language and children's strategic efforts.     

Unique Effects of a Family Literacy Program on the Early Reading Development of English Language Learners

Research Findings: The present study evaluated the effects of a Family Literacy program on the early English reading development of speakers of English as a first language (EL1s) and English language learners (ELLs). The study included a linguistically and culturally diverse sample of 132 kindergarten children and their parents. Families in the experimental group participated in a 9-week intervention program that was designed to promote early literacy in the home, whereas those in the control group did not receive the intervention. Both the experimental and control groups included EL1 and ELL children. Dependent variables included children's gains in alphabet knowledge, conventions of print, and meaning. Results indicated that ELL children in the experimental group made greater gains in their knowledge of the alphabet and their ability to infer meaning from print than EL1 children in the experimental group and both ELL and EL1 controls. There were no language group differences in children's gains in conventions of print. Practice or Policy: The results suggest that Family Literacy programs are associated with differential effects on the English reading development of EL1 and ELL children. Educational implications related to the development and implementation of effective Family Literacy programs for diverse communities are discussed.     

Mother–child joint writing in Chinese kindergarteners: metalinguistic awareness,maternal mediation and literacy acquisition

The present study examined the relations of Chinese word reading and writing to both maternal mediation of writing and a number of metalinguistic and cognitive skills in 63 Hong Kong Chinese kindergarteners. The whole process of maternal mediation of writing, in which mothers individually facilitated their children's writing of 12 two‐character words in their own ways, was videotaped. This study replicated and extended previous work on the cognitive strategies mothers use to help children in writing Chinese words. Mothers' typical mediation strategies were positively and significantly associated with both children's independent word reading and writing. In addition, maternal mediation of writing was uniquely associated with Chinese word reading, but not word writing, even with metalinguistic and cognitive skills, including phonological awareness, morphological awareness, orthographic processing and visual knowledge, statistically controlled. Findings underscore the importance of mothers' early scaffolding in facilitating children's literacy acquisition.     

Effects of home environment and center-based child care quality on children's language,communication, and literacy outcomes

This study examined the joint effects of home environment and center-based child care quality on children's language, communication, and early literacy development, while also considering prior developmental level. Participants were 95 children (46 boys), assessed as toddlers (mean age = 26.33 months; Time 1) and preschoolers (mean age = 68.71 months; Time 2) and their families. At both times, children attended center-based child care classrooms in the metropolitan area of Porto, Portugal. Results from hierarchical linear models indicated that home environment and preschool quality, but not center-based toddler child care quality, were associated with children's language and literacy outcomes at Time 2. Moreover, the quality of preschool classrooms moderated the association between home environment quality and children's language and early literacy skills – but not communication skills – at Time 2, suggesting the positive cumulative effects of home environment and preschool quality. Findings further support the existence of a detrimental effect of low preschool quality on children's language and early literacy outcomes: positive associations among home environment quality and children's developmental outcomes were found to reduce substantially when children attended low-quality preschool classrooms.     

Parental Mediation of Children's Viewing in a Changing Television Environment

For 25 years, Israeli television operated as a virtual monopoly, with one single channel shared by Educational TV and the Public Broadcasting Authority. Young viewers were exposed to non‐commercial quality programs primarily geared for children. The introduction of cable television challenges the ways parents control their children's viewing and fills the role of mediators between television and the child. This study is based on two surveys among parents of Israeli children aged 2‐8. The first was conducted with 537 parents in 1989, prior to the introduction of cable TV, and the second with 552 parents who had cable in 1993, when cable TV penetrated half of all Israeli homes. The results indicate that the introduction of cable TV changed strategies of parental control and mediation and parents’ assessment of television's influence on children. Active parental mediation was closely related to the attribution of learning values to children's viewing and to gratifications attributed to educational television broadcasts. Loosening of control and allowance for independent children's viewing was closely related to the attribution of entertainment value to children's viewing and to viewing of cable television.     

Txt msg n school literacy: does texting and knowledge of text abbreviations adversely affect children's literacy attainment?

This paper reports on two studies which investigated the relationship between children's texting behaviour, their knowledge of text abbreviations and their school attainment in written language skills. In Study One, 11–12‐year‐old children provided information on their texting behaviour. They were also asked to translate a standard English sentence into a text message and vice versa. The children's standardised verbal and non‐verbal reasoning scores were also obtained. Children who used their mobiles to send three or more text messages a day had significantly lower scores than children who sent none. However, the children who, when asked to write a text message, showed greater use of text abbreviations (‘textisms’) tended to have better performance on a measure of verbal reasoning ability, which is highly associated with Key Stage 2 (KS2) and 3 English scores. In Study Two, children's performance on writing measures was examined more specifically. Ten to eleven‐year‐old children were asked to complete another English to text message translation exercise. Spelling proficiency was also assessed, and KS2 Writing scores were obtained. Positive correlations between spelling ability and performance on the translation exercise were found, and group‐based comparisons based on the children's writing scores also showed that good writing attainment was associated with greater use of textisms, although the direction of this association is nor clear. Overall, these findings suggest that children's knowledge of textisms is not associated with poor written language outcomes for children in this age range.