首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 404 毫秒
1.
2.
Preschoolers' use of number words to denote one-to-one correspondence   总被引:1,自引:0,他引:1  
J Becker 《Child development》1989,60(5):1147-1157
Preschoolers' use of number words to denote one-to-one correspondence was assessed by 2 tasks. In the matching task, the children matched 2 sets to determine whether they could be put in one-to-one correspondence and then judged whether the same number word should be used to denote both sets. In the counting task, the children counted 2 sets and used the final number words of the count to determine whether the sets could be put in one-to-one correspondence. Most 4-year-olds and some 3 1/2-year-olds use number words to denote one-to-one correspondence in each of these tasks. These findings are related to previous research.  相似文献   

3.
本研究选取2-5岁超常儿童46名、普通儿童54名,通过实验考察了早期超常儿童的计数及其策略。结果显示:(1)超常儿童更早掌握“一一对应”的计数原则;(2)4岁前,超常儿童相对同龄普通儿童能掌握更大范围的基数;特别是3-4岁超常儿童,基本已经掌握了20以内的基数概念,显著优于同年龄普通儿童;(3)2-5岁超常儿童普遍具有比同年龄普通儿童更好的计数策略;(4)4-5岁超常儿童相对同龄普通儿童和3-4岁超常儿童,能够更有效地运用计数策略完成“随机性”计数任务。  相似文献   

4.
The work is aimed at studying the relations between different levels of phonological awareness and early reading ability. Ten different metaphonological tasks as well as a reading (syllables and word decoding) test were administered to kindergarteners and first graders. The correlations between metaphonological abilities and reading were highly significant for the kindergarteners. In the tasks involving sensitivity to phonological similarities, correlations were weak and nonsignificant for the first graders. A principal components analysis shows two components at first grade: sensitivity to phonological similarities and segmental awareness. Reading was related only to the latter. The differential performance between prereaders and readers within the group of kindergarten shows that sensitivity to phonological similarities and initial isolation of segments takes precedence over alphabetic reading. Segmental awareness, however, does not develop outside the learning of the alphabetical code as the evidence provided by results in deleting, counting and reversal tasks suggests. All children who had developed segmental awareness were able to read but, interestingly enough, some good readers performed poorly in some of the segmental awareness tasks (i.e. deleting of initial phoneme).  相似文献   

5.
6.
The present study explores the approaches employed by sixth-grade students to compare rival solutions in socio-scientific decision-making situations. Data were collected using three specially developed open-ended tasks. Two of them were administered to 96 students in a written form while the third was administered to 20 of these students through individual follow-up interviews. Our findings suggest that students failed to consistently apply coherent decision-making approaches. Instead, they employed a diversity of approaches ranging from non-compensatory strategies that avoided tradeoffs between advantages and disadvantages of rival solutions, to strategies that sought to synthesize these two aspects, though in an invalid manner. We demonstrate that these strategies are the outcome of a number of prevalent reasoning difficulties.  相似文献   

7.
Children's counting strategies reflect how much they understand the place-value structure of numbers. In Study 1, a novel task, namely the strategic counting task, elicited strategies from kindergarteners and first graders that showed a trend of increasing place-value knowledge – from perceiving number as an undivided entity to seeing it as a collection of independent groups of powers of ten. In Study 2, first-graders' strategic counting task scores at the end of fall semester were better predictors of year-end mathematical achievement than the traditional place-value tasks. In Study 3, a five-item subset of strategic counting was the best among 15 various cognitive predictors of end of second-grade mathematical achievement. Growth curve modeling revealed that low-mathematics achievers at the end of second grade had been lagging behind their peers in strategic counting since early first grade. Implications for early support for children with difficulties in place-value knowledge are discussed.  相似文献   

8.
The current study investigated the development of children's performance on tasks that have been suggested to underlie early mathematics skills, including measures of cardinality, ordinality, and intelligence. Eighty‐seven children were tested in their first (T1) and second (T2) school year (at ages 5 and 6). Children's performance on all tasks demonstrated good reliability and significantly improved with age. Correlational analyses revealed that performance on some mathematics‐related tasks were nonsignificantly correlated between T1 and T2 (number line and number comparison), showing that these skills are relatively unstable. Detailed analyses also indicated that the way children solve these tasks show qualitative changes over time. By contrast, children's performance on measures of intelligence and nonnumerical ordering abilities were strongly correlated between T1 and T2. Additionally, ordering skills also showed moderate to strong correlations with counting procedures both cross‐sectionally and longitudinally. These results suggest that, initially, mathematics skills strongly rely on nonmathematical abilities.  相似文献   

9.
This study investigates the maintenance and generalization of preacademic objectives in children with mental retardation from early intervention programs. All the subjects (25) had mastered, according to their Individual Education Programs (IEPs), at least one task in the areas of color, shape, number, or big/little . They, along with children in three comparison groups, were given a series of tasks that included the same previously achieved IEP objectives (maintenance) and closely related tasks within the same domain (generalization). The findings indicated variability in maintenance and generalization for the children in early intervention, better for color and shape than for number and big/little. Success on generalization was below the usual standard indicating mastery (85%-100%). On the generalization tasks, children in early intervention performed similarly to older children with retardation who had lower standard scores (Peabody Picture Vocabulary Test-Revised) but roughly equivalent language ages. They performed less well than older children with retardation who had similar standard scores but higher language ages. They also performed less well than children without disabilities in regular preschool programs who were close in chronological age, but had higher standard scores and higher language ages. We conclude that performance on these tasks is closely tied to developmental age regardless of chronological age and "IQ" status. Findings are discussed in relationship to preacademic curriculum in early intervention programs.  相似文献   

10.
Young children's combinatoric strategies   总被引:2,自引:0,他引:2  
Children aged between 4 years 6 months and 9 years 10 months were individually administered a series of novel tasks involving the formation of different combinations of two items, selected from discrete sets of items. An analysis of the children's performance revealed a series of six, increasingly sophisticated, solution strategies ranging from a random selection of items through to a systematic pattern in item choice (cf. Piaget and Inhelder's, 1975, combinatoric operations). A significant number of children independently adopted more efficient solution procedures as they progressed on the tasks, with many displaying an algorithmic procedure reflecting the odometer strategy (holding one item constant while systematically varying each of the other items). Given that children as young as 7 years demonstrated this systematic strategy, it would appear that, within the appropriate learning environment, young children can discover a procedure for forming n x n combinations prior to the stage of formal operations postulated by Piaget and Inhelder. The findings support the inclusion of the combinatorial domain as a topic of investigation in the elementary school curriculum.  相似文献   

11.
The work presented here compares two groups of three- and four-year-old children who differ in their school entrance age and consequently in the social expectations of what they should know at these particular ages. The comparison was made in order to assess the effect of children’s counting ability on their ability to reason about number. An experiment was designed to make sure that children who succeeded were basing their answers only on the operation performed. The experiment included a set size with more items in it than any of the children would supposedly be able to count. Also, some of the tasks combined addition and subtraction with lengthening and shortening and homogeneous sets were used to avoid the possibility of an answer being based on the presence or absence of a specific item. Three possible outcomes were predicted and the results obtained were analysed in the light of these. The results support the conclusion that young children may reason about number even without having represented it and that children’s counting ability does not necessarily underlie their capacity to identify number-relevant operations but rather that the ability to make number-based judgements develops independently from the knowledge of counting.  相似文献   

12.
Researchers suggest that game-based learning (GBL) can be used to facilitate mathematics learning. However, empirical GBL research that targets young children is still limited. The purposes of the study is to develop a scenario-based digital game to promote children's route-planning ability, to empirically explore children's learning performance in route planning through the game, and to probe children's technology acceptance of the game. A total of 71 children participated in the study, and both qualitative and quantitative approaches were used, including an interview analysis as well as performance and content analyses of learners’ route-planning tasks. The findings showed that the game had a positive effect on children's learning of route-planning strategies, that children's route-planning strategies were improved with the support of the game, and that children demonstrated high technology acceptance toward the game. This study may be of importance in offering insight into children's GBL.  相似文献   

13.
This study reports on science student perceptions of their skills (scientific knowledge, oral communication, scientific writing, quantitative skills, teamwork and ethical thinking) as they approach graduation. The focus is on which teaching activities and assessment tasks over the whole programme of study students thought utilised each of the six nominated skills. In this quantitative study involving two Australian research-intensive universities, the teaching activities identified by students as developing the broadest number of skills were laboratory classes and tutorials. Lectures were only effective for developing scientific knowledge and, to a limited extent, ethical thinking. Assessment tasks that students perceived to utilise the broadest range of skills were assignments and oral presentations. The findings of this study document the students’ perspective about their gains in skill sets, and the teaching activities and assessment tasks that require them to use and thus develop these skills. The findings provide an opportunity to evaluate the constructive alignment of skills development, teaching activities and assessment tasks from a student’s perspective. Further research is required to actually measure the skills that students gain over their whole programme of study.  相似文献   

14.
Research Findings: Children who speak English are slower to learn the counting sequence between 11 and 20 compared to children who speak Asian languages. In the present research, we examined whether providing children with spatially relevant information during counting would facilitate their acquisition of the counting sequence. Three-year-olds (n = 54) who played a 1–20 number board game in which numbers were grouped by decade into 2 rows learned significantly more of the counting sequence than children who played a linear version of the game or those who were in the control group. Both the row and linear versions of the game helped children improve their performance on an object counting task. Children’s performance on a number line task did not show an effect of either game intervention. Practice or Policy: These results suggest that counting practice that includes spatially informative cues can facilitate young English-speaking children’s learning of the challenging number sequence from 11 to 20.  相似文献   

15.
We report on a longitudinal study designed to assess possible sex differences in math achievement, math ability, and math-related tasks during the primary school age years. Participants included over 200 children from one public school district. Annual assessments included measures of math ability, math calculation achievement scores, rapid naming and decoding tasks, visual perception tests, visual motor tasks, and reading skills. During select years of the study we also administered tests of counting and math facts skills. We examined whether girls or boys were overrepresented among the bottom or top performers on any of these tasks, relative to their peers, and whether growth rates or predictors of math-related skills differed for boys and girls. Our findings support the notion that sex differences in math are minimal or nonexistent on standardized psychometric tests routinely given in assessments of primary school age children. There was no persistent finding suggesting a male or female advantage in math performance overall, during any single year of the study, or in any one area of math or spatial skills. Growth rates for all skills, and early correlates of later math performance, were comparable for boys and girls. The findings fail to support either persistent or emerging sex differences on non-specialized math ability measures during the primary school age years.  相似文献   

16.
In two studies, we compared young children's performance on three variations of a nonverbally presented calculation task. The experimental tasks used the same nonverbal mode of presentation but were varied according to response type: (1) putting out disks (nonverbal production); (2) choosing the correct number of disks from a multiple-choice array (nonverbal recognition); and (3) giving a number word (verbal production). The verbal production task required children to map numerosities onto the conventional number system while the nonverbal production and nonverbal recognition tasks did not. Study 1 showed that the performance of 3-, 4- and 5-year-old middle-income children (N = 72) did not vary with the type of response required. Children's answers to nonverbally presented addition and subtraction problems were available in both verbal and nonverbal forms. In contrast. Study 2 showed that low-income children (3- and 4-year-olds; N = 48) performed significantly better on both nonverbal response type tasks than on the verbal response type task. Analysis of individual data indicated that a number of the low-income children were successful on the completely nonverbal calculation tasks, even though they had difficulty with verbal counting (i.e., set enumeration and cardinality). The findings suggest that the ability to calculate does not depend on mastery of conventional symbols of arithmetic.  相似文献   

17.
A systematic study was carried out to investigate the basic counting and number skills, and the strategies used in counting and number tasks of students with moderate intellectual disabilities at different age levels. Using Fuson's (1988, 1992) number–word model, students' understanding and use of number words were examined in four situations (sequence, counting, cardinal, and symbol). Thirty students with moderate intellectual disabilities (IQ of 36–54) aged between 7 and 18 years were interviewed individually and their counting skills and concepts of number assessed by various number tasks. Results showed a significant difference between the three age groups on all the number skills assessed. Specifically, the learning pattern for the sequence of number–words and the kinds of correspondence errors made were similar to those of students with normal intelligence; one-to-one correspondence and stable-order principles were used and the cardinal principle was understood. Recommendations were made concerning the education of students with moderate intellectual disabilities in aspects of numeracy.  相似文献   

18.
Recent studies have shown that children with mathematics difficulties (MD) have weaknesses in multiple areas of mathematics. Andersson, for example, recently found that children with MD perform significantly worse than other children on clock reading tasks. The present study builds on this recent finding and aims at a more profound understanding of the difficulties that children with MD experience with telling time. Therefore, clock reading abilities of 154 children with MD were compared to the abilities of 571 average achieving children, and a qualitative error analysis was performed. The results of this study confirm the earlier findings of Andersson that children with MD perform worse on clock reading than average achieving children and also show that children with MD especially struggle with the combination of procedural and retrieval strategies that are needed to read complex 5-min and 1-min clock times. Children with MD make more errors, which reflects immature counting strategies and deficits in memory retrieval. This finding is in line with Geary's theory of subtypes in MD, which argues that children with MD have problems with mathematical procedures and semantic memory retrieval.  相似文献   

19.
This study aimed at analysing traditionally taught children’s acquisition and use of shortcut strategies in the number domain 20–100. One-hundred-ninety-five second, third, and fourth graders of different mathematical achievement levels participated in the study. They were administered two tasks, both consisting of a series of two-digit additions and subtractions that maximally elicit the use of the compensation and indirect addition strategy (, so the answer is 2 + 1 or 3). In the first task, children were instructed to solve all items as accurately and as fast as possible with their preferred strategy. The second task was to generate at least two different strategies for each item. Results demonstrated that children of all grades and all achievement levels hardly applied the compensation and indirect addition strategy in the first task. Children’s strategy reports in the second task revealed that younger and lower achieving children did not apply these strategies because they did not (yet) discover these strategies. By contrast, older and higher achieving children appeared to have acquired these strategies by themselves. Results are interpreted in relation to cognitive psychological and socio-cultural perspectives on children’s mathematics learning.
Joke TorbeynsEmail:
  相似文献   

20.
In 2 studies, 3- and 4-year-old children's ability to reason about the relation between mental representations and reality was examined. In the first study, children received parallel false belief and "false" imagination tasks. Results revealed that children performed better on imagination tasks than on belief tasks. The second study demonstrated that, when various alternative explanations for better performance on the imagination task were controlled for, children still performed significantly better when reasoning about another person's imagination than when reasoning about another person's belief. These findings suggest that children's understanding that mental representations can differ from reality may emerge first with respect to representations that do not purport to represent reality truthfully.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号