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In this empirical study we examined the effect of a literacy-infused science intervention on fifth grade economically challenged students’ science achievement in the curriculum-based and standardized assessments. A total of 27 treatment students and 20 comparison students from two intermediate schools in a rural district in South Texas in the United States participated in the present study. The intervention consisted of ongoing, structured, bi-weekly virtual professional development (VPD) with virtual mentoring and coaching (VMC) at the teacher level and literacy-infused science lessons with inquiry-based learning delivered at the student level. Results revealed a significant and positive intervention effect in favor of treatment students as reflected in higher normal curve equivalent scores in the standardized science assessment and higher scores in curriculum-based assessment. We conclude that the literacy-infused science intervention, inclusive of evidence-based curriculum, VPD, and VMC, is particularly beneficial for promoting science learning for the students in rural areas with educational and economical challenges due to geographic isolation.

This study was designed to examine the role of early bilingual home literacy experiences (HLE) (including parent–child shared reading, parents’ direct teaching in Chinese and English, the availability of books in both languages, and children’s access to digital devices for bilingual learning) in the biliteracy development of 66 Chinese–Canadian first graders during the COVID-19 pandemic. Descriptive analyses reveal that overall, parents report higher engagement in English than in Chinese across the four HLE measures. Parent’s engagement in bilingual HLE differs by gender, SES, and immigration status. Pearson correlational analyses of English reading, decoding, and bilingual oral receptive vocabulary reveal that the four dimensions of HLE are not strongly related to English early literacy skills but are positively related to Chinese receptive vocabulary. Finally, hierarchical regression analyses indicate that the availability of books in Chinese and parent–child shared reading in Chinese are key factors associated with Chinese receptive vocabulary score variance; the amount of time using digital devices is found to be significantly related to English reading comprehension, but not Chinese vocabulary; and parents’ direct teaching is not significant with either English early literacy skills or Chinese receptive vocabulary. These findings have important implications for parental engagement in early bilingual home literacy activities and early literacy instruction in school.

Bilingual children in the North American context significantly improve in English language proficiency, but their heritage language learning varies between different linguistic groups. This mixed methods study was designed to explore the developmental patterns in bilingual vocabulary among Chinese-Canadian first-graders’ (N = 75) and to identify home factors that may have contributed to divergent bilingual developmental trajectories. Cluster analyses were conducted to identify underlying discrepancy profiles in bilingual oral lexicon. Four children with contrasting bilingual profiles were selected for qualitative analysis to explore home factors that may have contributed to the discrepancies. Thematic analyses of parental interviews revealed several family factors such as beliefs and attitudes toward bilingualism, quality literacy engagement, and sibling dynamics, that all appearing to contribute to the discrepancies.

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