Master of Science

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  • Publication
    Open Access
    Variation of roundhouse kick simple and complex reaction, response and movement time in different phases of the menstrual cycle among female combat sport athletes
    (National Institute of Education, Nanyang Technological University (NIE NTU), Singapore, 2024)
    Choo, Darine Hui Wen
    Increasing female participation in competitive sports demands the need to understand how to manage the effect of the menstrual cycle on performance. The present study aims to understand the variation in performance during a roundhouse kick movement along the menstrual cycle. Participants (n = 6) performed at least 6 high and low kick, two different tasks (simple or complex), across two different cycles, twice each cycle. Self-reported wellness, anthropometric measures and blood hormone concentration were taken. Reaction, response, and movement time were measured as performance outcomes. Repeated measure ANOVA and correlation statistical analyses were done. No significant relationship between hormone concentration and performance and no significant differences in performance between phases and cycles were found. The present study showed no influence of the menstrual cycle on roundhouse kick performance. However, on an individual level, there appears to be some physiological and psychological responses, emphasising the need for individualise training adaptations.
      6  201
  • Publication
    Restricted
    Curiosity in classroom discourse
    (2024)
    Wang, Yuhan

    Curiosity, regarded as a fundamental inherent impetus and a pivotal stimulant impacting human conduct, is recognized as an inclination to know unfamiliar matter. Correspondingly, within the realm of education, curiosity manifests as an aspiration for knowledge. It impels students to actively pursue knowledge, serves as a noteworthy motivator for student learning, and can additionally translate into positive learning and investigative behaviors, thereby enhancing learning efficiency and yielding superior academic achievements. Thus, facilitating curiosity among students throughout the process of learning assumes significance. Nevertheless, subsequent to students' enrollment in schools, there is an obviously reduction in the manifestation of their curiosity. This phenomenon suggests a waning of the innate motivation that contributes to the process of learning. Consequently, how to arouse and sustain students' curiosity within scholastic environments emerges as a pivotal concern in contemporary education.

    Based on this current situation, the current study undertook in-depth research on the relationship between classroom discourse and student curiosity. After coding the types of utterance and emotion between teachers and students that occurred in a total of 28 discourse sessions in a knowledge-building physical classroom, a network analysis called directed acyclic graph was used to extract and infer the directional relationships between them. The findings ultimately underscore that the existing curiosity exhibited by students wields a direct and substantial impact on re-arousing their curiosity. Additionally, the inquiry identified three types of teacher utterance that manifest a high potential for stimulating students' curiosity, which is conveying information (GI), giving a positive response (NS), and teacher's reiteration of a student's opinion with uncertainty to seek confirmation from the student (RV).

    The study affords a valuable finding in comprehending the relationship between classroom discourse and student curiosity, understanding which types of utterance are most effective in stimulating students' curiosity, thereby helping students to engendering a heightened impetus for knowledge acquisition and fostering an elevated motivation to engage in the learning process. Additionally, this study furnishes a theoretical underpinning that guides educators toward the judicious selection of utterance strategies capable of efficaciously kindling student curiosity in a scientific manner, creating an environment conducive to enhanced pedagogical outcomes and augmented student achievements.

      24  38
  • Publication
    Restricted
    Teachers' perceptions, learning and self-efficacy in using curriculum resources in the enactment of the new primary science syllabus
    (2024)
    Nadiah Hana Abdul Rahman

    This study aims to gain insights into the factors that influence primary three science teachers’ perceptions of the usefulness of an integrated suite of curriculum resources for the implementation of the new 2023 Primary Science Syllabus in both lesson planning and enactment. The suite of resources comprises the textbook (TB), activity book (AB), Sparkle Kits (Sp Kit), Students’ Learning Space (SLS), Teaching and Learning Guide (TLG), and Young Scientist Cards (YS). Curricular resources are not self-acting, and hence understanding teachers’ perceptions of these resources and how the factors affect teachers’ interactions with these resources in their professional practices is fundamental for teachers’ learning and growth. I focus on teachers’ sense making when considering personal professional practices and science teaching self-efficacy when adopting and adapting these resources.

    Data, in the form of a 26-questions 5-point Likert questionnaire, were collected from 187 primary three science teachers from all primary schools in Singapore. Teachers rated the usefulness of each resource based on four curriculum themes with a score of 1 to 5 (a score of 1 as the least useful and 5 as the most useful). Descriptive statistics, paired t-test and ANOVA, were used to determine the teachers’ perceived usefulness of each resource and its relationship to the years of experience in science teaching and science training qualifications. Additionally, five participating teachers were asked to complete a science teaching self-efficacy instrument (Bleicher, 2004) consisting of twenty five-point Likert scale closed-response items that measures the Personal Science Teaching Efficacy (PSTE) and Science Teaching Outcome Expectancies (STOE) of educators (Riggs & Enochs, 1990). Furthermore, these teachers were also asked to share their experiences while learning to use or customising the integrated suite of resources during their lesson planning and enactment. This might provide glimpses into their science teaching self-efficacy.

    The mean number of years of science teaching experience was 13.08 years ± 7.62, with the highest proportion of primary science teachers having taught science for 6 to 10 years. Novice teachers with up to five years of science teaching experience rated the Teaching and Learning Guide and Sparkle Kits as most useful resources in supporting their lesson planning and enactment. Of the six resources, Sparkle Kits had the highest mean score of perceived usefulness for lesson planning and lesson enactment while the Young Scientist cards were perceived to be the least useful during lesson planning and lesson enactment. The usefulness of each resource was not dependent on the curricular themes.

    The findings of this study suggest that continuous review and renewal of curricular resources, paired with professional development differentiated by the needs and experiences of teachers could make teacher learning more meaningful, resulting in teachers being more self-efficacious. To better support teachers with up to five years of science teaching experience, the Teaching and Learning Guide could be reviewed to include more educative features to support the novice teachers and intentionally used as a primer for professional discussion, mentoring, and sharing among senior, experienced, and novice teachers.

      32  60
  • Publication
    Open Access
    Salinity and light quality effect on growth, water relations, photosynthetic performance and nutritional quality of aeroponically grown edible mesembryanthemum crystallinum and portulaca oleracea
    (2024)
    Leng, Su Yee
    Growing halophytes using saline water would be a feasible solution to the declining availability of fresh water. On aeroponically grown edible halophytes Mesembryanthemum crystallinum and Portulaca oleracea, this study investigated 1) the impacts that different percentage of artificial seawater (ASW) had on the plant growth, water relations, photosynthetic performance and nutritional quality; 2) the interactive effects of ASW and light spectrum quality on growth, water relations, photosynthetic performances and nutritional quality; and 3) the effects of salt priming under effective LED lighting on growth and nutritional quality. Both M. crystallinum and P. oleracea grew under LED of R/B 2.2 in 10%, 20%, 30%, 40%, 60%, 80% and 100% ASW for the first objective. Shoot and root biomass generally decreased with increasing saline concentration for both plants. However, M. crystallinum exhibited a high level of salt tolerance and grew well in 100% ASW while P. oleracea were not able to survive in 100% ASW. It was found that 10% ASW was the most favorable condition tested for the growth of both plants. When severely salt stressed at 60% ASW, both plants induced CAM photosynthesis to manage its water status. The findings of this study suggest that M. crystallinum had a higher salt tolerance, and possibly equipped with more robust mechanisms to alleviate the oxidative stress, than P. oleracea. As for the second objective, both plants were grown under R/B LED ratio of 0.9 and 2.2 in 10% and 40% ASW. M. crystallinum grown in 10% ASW under R/B 2.2. and P. oleracea grown in 10% ASW under R/B 0.9 had higher productivities. This had once again proven that low salinity favours photoassimilate accumulation. Both plants relied heavily on proline to counter oxidative stress at higher salinity concentration of 40% ASW under both light conditions. There were no clear correlation between antioxidant enzymes and dietary minerals studied with salinity treatment and light conditions as they could possibly be dependent on species and other environmental conditions. Large amount of Na+ was found in both plants grown in 40% ASW regardless of light conditions. Ultimately, for the third objective, the plants were grown under R/B LED ratio of 2.2. The seedlings were grown in 10% ASW for 10 days (I) after transplant where the first harvest occur. From day 11 to 16 of transplant, both types of plants were exposed to 4 different treatments before harvesting on day 16, i.e. II: 10% ASW; III: 80% ASW; IV: 40% ASW ⟹ 80% ASW; V: 40% ASW ⟹ 60% ASW ⟹ 80% ASW. Primed M. crystallinum had higher productivities than those that were not primed. However, priming had not much effect on the productivities on P. oleracea. Priming resulted in enhanced proline accumulation, Asc concentration, soluble sugars and antioxidant enzymes activities in M. crystallinum. However, it did not have much effect on proline accumulation and antioxidant enzyme activities in P. oleracea. A reduction of Na+ was observed both plants when primed, and once again, no distinct trends were observed between dietary minerals and salt priming.
      34  286