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Misconceptions in Biology present persistent challenges to effective Biology education, limiting students’ acquisition of accurate knowledge and scientific literacy. This study investigated the effectiveness of interactive video lessons in addressing and correcting biological misconceptions of photosynthesis, genes and chromosomes among high school students in Bhutan. Employing a quasi-experimental design, the study engaged 228 students who participated in pre-tests, interventions, post-tests, and postretention tests. The prevalence of misconceptions prior to the intervention highlighted the urgent need for more effective instructional strategies. Statistical analyses indicated significant improvement t(114) = -8.451, p < .001) in the experimental group’s performance compared to the control group. Moreover, the sustained nature of this improvement was evident from the minimal differences observed between post-test and post-retention scores t(114) = .139, p > .05) within the treatment group. This suggests that the interactive video lessons were not only effective in correcting misconceptions but also in promoting long-term understanding and retention of fundamental biological concepts. The findings underscore the importance of integrating evidence-based instructional tools, such as interactive videos, to enhance conceptual clarity and student engagement. The study provides actionable recommendations to help improve Biology teaching and reduce persistent misconceptions among students through effective classroom and policy-level interventions.
This study critically analyzes the employment practices of English language schools in Vietnam, including their selection criteria, recruitment processes, and the challenges they present, as well as their impact on educational quality. According to statistics from 18 centers nationwide, the findings are that all the centers require candidates to possess IELTS or TESOL certification, 75% prefer candidates with at least a Bachelor’s degree, and 85% prefer native English speakers. Formal interviews (used by 90% of the centers), teaching demonstrations (70%), and written examinations (50%) are standard tools used for selection. Large-scale concerns identified during the recruitment process include difficulties in recruiting highly qualified native speakers (90%), evaluating teaching capability effectively (65%), and navigating complex visa requirements (85%). Statistical methods, such as ANOVA, Chi-square tests, and Pearson correlation, were employed to determine the relationships between institution size, location, and program type, as well as recruitment preferences and issues. Findings show that centers with higher staff are more likely to prefer in-house speakers, city centers experience more visa-related problems, and programs that offer special studies are more selective in their hiring practices. The study emphasizes the need for tighter regulatory directions and more equitable recruitment processes to ensure improved English language teaching (ELT) quality in Vietnam. The study also recommends future research on the connection between recruitment policies and pedagogical quality.

