Browsing by Author "Xu, Chang"
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- ItemChildren's Home Numeracy Environment Predicts Growth of their Early Mathematical Skills in Kindergarten(WILEY, 2020) Susperreguy Jorquera, María Inés; Burr, Sabrina Di Lonardo; Xu, Chang; Douglas, Heather; LeFevre, Jo AnneThis study investigated the longitudinal associations between children's early mathematics and their home numeracy environment (HNE). Chilean children from families who varied widely in socioeconomic status were assessed at the beginning and end of prekindergarten in 2016 (N = 419, M-age = 4:7 [years:months]), and at the end of kindergarten in 2017 (N = 368, M-age = 5:10). Children whose parents provided frequent operational numeracy activities (e.g., learning simple sums) at prekindergarten showed better arithmetic performance and growth in nonsymbolic and symbolic number comparison at the end of kindergarten. Parents' knowledge of number-related games predicted children's arithmetic skills and growth in nonsymbolic number comparison. These findings underscore the persistent relations between the HNE and the development of children's mathematical skills.
- ItemDevelopment of children's number line estimation in primary school: Regional and curricular influences(Wiley, 2023) Xu, Chang; Burr, Sabrina Di Lonardo; LeFevre, Jo-Anne; Skwarchuk, Sheri-Lynn; Osana, Helena P.; Maloney, Erin A.; Wylie, Judith; Simms, Victoria; Susperreguy, Maria Ines; Douglas, Heather; Lafay, AnneIs the development of number line estimation (NLE) similar across regions? Data from Canada (Quebec, n = 67, Mage = 7.9 years; Manitoba, n = 177, Mage = 7.8 years), Chile (n = 81, Mage = 7.9 years), and Northern Ireland (n = 171, Mage = 7.3 years) were analyzed. Twice, approxi-mately one year apart, students completed a 0-1000 NLE task and other mathematical tasks. Using latent profile analysis, students' estimates were classified as belonging to either a uniform or variable profile. At Time 1, estimation accuracy differed across regions, but at Time 2, patterns of performance were similar. Regional variations in improvements were related to curricular de-mands. Moreover, mini meta-analyses of the associations between NLE and other mathematical tasks revealed medium effect sizes. Overall, the NLE task can provide insights into concurrent and longitudinal mathematics achievement, but educational experiences should be considered when comparing performance across regions.
- ItemHome mathematics environment and math performance of Chilean students in kindergarten and Grades 1 to 3(Elsevier Ltd, 2022) Susperreguy Jorquera, María Inés; Di Lonardo Burr, Sabrina; Douglas, Heather; Xu, Chang; LeFevre, Jo-Anne; Río, María Francisca del; Salinas Ulloa, Viviana MonzerratWe investigated whether home math activities were related to children's math performance in kindergarten and the first three years of primary school. Participants were Chilean parents and their children in kindergarten, Grade 1, Grade 2, and Grade 3 (ns = 101, 95, 87, and 84, respectively). Mothers and fathers independently answered questions about their math activities at home, provided sociodemographic information, and completed an arithmetic fluency task. Children completed measures of applied problem solving, calculation, and arithmetic fluency. For kindergarten children, we found that mothers’ (but not fathers’) reports of the frequency of operational (e.g., mental arithmetic) activities were positively related to children's math performance, whereas mothers’ reports of the frequency of mapping (e.g., counting, number naming) math activities were negatively correlated with performance. For children in Grades 1–3, home math activities were not significant unique predictors of math outcomes. The socioeconomic status of children's schools and maternal math fluency predicted children's math performance in Grades 1–3. The implications of these findings are discussed for understanding how children's home environments are related to their mathematical development.
- ItemRelations between the Home Learning Environment and the Literacy and Mathematics Skills of Eight-Year-Old Canadian Children(MDPI, 2022) Skwarchuk, Sheri-Lynn; Douglas, Heather; Cahoon, Abbie; LeFevre, Jo-Anne; Xu, Chang; Roy, Emilie; Simms, Victoria; Wylie, Judith; Maloney, Erin A.; Osana, Helena P.; Susperreguy Jorquera, María InésThe home learning environment includes parental activities, attitudes, affect, knowledge, and resources devoted to supporting children's development, including literacy and mathematics skills. These factors are related to the academic performance of preschool children (aged 3 to 6 years), before formal schooling and possibly beyond. In the present research, we examined the home learning environment of Canadian families as reported by either the mother (n = 51) or father (n = 30) of their Grade 3 child (n = 81; M-age = 8.7 years; range 8 to 9 years of age). Importantly, mothers' and fathers' reports of the home learning environment for school children were similar. For literacy, parents' knowledge of children's books and attitudes toward literacy were related to children's vocabulary skills; home literacy was not related to word reading skills. For mathematics, parents' reports of the frequency of activities such as practicing arithmetic facts and their attitudes toward mathematics were related to children's arithmetic fluency. Other aspects of the home learning environment (time spent helping with homework, parents' math anxiety) were not related to children's performance. These results suggest some continuity between home learning environments and academic skills after children's transition to school.
- ItemWalking another pathway: The inclusion of patterning in the pathways to mathematics model(Elsevier Science Inc., 2022) Di Lonardo Burr, Sabrina M.; Xu, Chang; Douglas, Heather; LeFevre, Jo-Anne; Susperreguy Jorquera, María InésAccording to the Pathways to Mathematics model [LeFevre et al. (2010), Child Development, Vol. 81, pp. 1753-1767], children's cognitive skills in three domains-linguistic, attentional, and quantitative-predict concurrent and future mathematics achievement. We extended this model to include an additional cognitive skill, patterning, as measured by a non-numeric repeating patterning task. Chilean children who attended schools of low or high socioeconomic status (N = 98; 54% girls) completed cognitive measures in kindergarten (M-age = 71 months) and numeracy and mathematics outcomes 1 year later in Grade 1. Patterning and the original three pathways were correlated with the outcomes. Using Bayesian regressions, after including the original pathways and mother's education, we found that patterning skills predicted additional variability in applied problem solving and arithmetic fluency, but not number ordering, in Grade 1. Similarly, patterning skills were included in the best model for applied problem solving and arithmetic fluency, but not for number ordering, in Grade 1. In accord with the hypotheses of the original Pathways to Mathematics model, patterning varied in its unique and relative contributions to later mathematical performance, depending on the demands of the tasks. We conclude that patterning is a useful addition to the Pathways to Mathematics model, providing further insights into the range of cognitive precursors that are related to children's mathematical development.