published_or_final_version / abstract / Education / Master / Master of Education

published_or_final_version / Education / Master / Master of Education

A review of the literature shows that there is much evidence to suggest the challenges facing Hispanic students in American public schools. Hispanic enrollment in K-12 public schools has increased from 6 to 19% in the last thirty years, yet schools have not made adequate adjustments to accommodate this changing population. Issues such as remedial tracking and cultural differences have led to low high school graduate rates for Hispanic students and inequities in schooling experiences (Gay, 2000). Particularly in the area of science, Hispanic students struggle with academic success (Cole & Espinoza, 2008). Despite these obstacles, some Hispanic students are academically successful (Rochin & Mello, 2007; Merisotis & Kee, 2006). This dissertation tells the stories of these Hispanic students who have been successful in science in secondary public schools. This study followed a grounded theory methodology and utilized individual interviews to collect data about Hispanics who have demonstrated achievement in the area of science. Through the analysis of these interviews, factors were identified which may have contributed to the success of these Hispanics in the field of science. Implications for future practice in public schools are also discussed.

M.Ed. / Renewal represents an improvement in accepted existing practice. This implies that the old practice is just not good enough any longer. Similarly, the knowledge and training base of lecturers at technical colleges fell short with the introduction of the new National Intermediate Certificate, as well as the National Senior Certificate in 1992. The subject-related problems which emerged, could have been solved by various techniques. The quality circle, self-directed work team and support groups, are three group-related problem-solving techniques to be assessed in this study. The three techniques share group participation as a common characteristic. Each of these techniques still maintains a unique approach and method in solving a problem. One would have a remarkable problem-solving technique if one could capitalise on all the positive aspects of the various techniques. The introduction of the new National Intermediate Certificate and the National Senior Certificate, is a direct result of adherence to community needs. The new courses demanded implementation of computer training in various fields of study at technical colleges. A curriculum analysis focusing on Parktown College, led to the identification of three fields of study affected by the introduction of the computer. Lecturers responsible for computer training experienced and still experience various problems. These problems were identified by means of a focus group interview.

xi, 73 p. : ill. / Recent studies have demonstrated a clear gap between the skills that high school graduates obtain by the completion of high school and those that are necessary for success in college as well as the workforce. Demands for more rigorous preparation at the high school level have prompted some states to make changes to state standards and high school graduation requirements. This dissertation used a prediction study to examine the coursetaking patterns of high school students in science and their subsequent success in chemistry 1A at the college level. Analysis of obtained data using a two-way ANOVA was used to estimate the main effects of (a) number of semesters of science courses and (b) the type of science courses and (c) the interaction effect on college performance as indicated by the final course grade. The results of this study indicate that the main effect of type and the main effect of number of semesters are both significant statistically. Taking more semesters of science in high school is positively associated with the final grade in first-year college chemistry. Taking higher level science coursework in high school is also positively associated with final grade. The interaction of type by number of semesters is not significant, however. Taking more semesters of higher level science coursework does not increase the likelihood of doing well in college chemistry, as there is no observable significant influence on final grade in chemistry, beyond the main effects described previously. / Committee in charge: Paul Yovanoff, Chairperson; David Conley, Member; Kathleen Scalise, Member; Kenneth Doxsee, Outside Member

Lee Yun-wing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 87-92). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Motivation and Objectives --- p.3 / Chapter 1.3 --- Organization of Thesis --- p.4 / Chapter 2 --- Review of Related Work --- p.5 / Chapter 2.1 --- Traditional Education Theory --- p.6 / Chapter 2.1.1 --- Integrative Learning Model --- p.6 / Chapter 2.1.2 --- Problem-Based Learning --- p.7 / Chapter 2.1.3 --- Cognitive Apprenticeship --- p.8 / Chapter 2.1.4 --- Conversational Model --- p.9 / Chapter 2.1.5 --- Self-Regulated Learning --- p.10 / Chapter 2.1.6 --- Seven Principles for Good Practice for Education --- p.11 / Chapter 2.2 --- Online Learning Examples --- p.13 / Chapter 2.3 --- Web sites Comparison --- p.30 / Chapter 2.4 --- Chapter Summary --- p.38 / Chapter 3 --- An On-line learning model --- p.39 / Chapter 3.1 --- Conceptual Design --- p.39 / Chapter 3.2 --- Software architecture --- p.51 / Chapter 3.2.1 --- Authentication --- p.53 / Chapter 3.2.2 --- Courseware studying --- p.54 / Chapter 3.2.3 --- Quiz retrieval --- p.55 / Chapter 3.2.4 --- Performance Monitoring --- p.57 / Chapter 3.3 --- Chapter Summary --- p.58 / Chapter 4 --- Demonstration --- p.59 / Chapter 4.1 --- Account Management --- p.60 / Chapter 4.2 --- Courseware --- p.62 / Chapter 4.3 --- Quiz --- p.68 / Chapter 4.4 --- Email address list and newsgroup --- p.76 / Chapter 4.5 --- Instructor Area --- p.77 / Chapter 4.6 --- Chapter Summary --- p.80 / Chapter 5 --- Conclusion and Future Work --- p.82 / Chapter 5.1 --- Conclusion --- p.82 / Chapter 5.2 --- Future work --- p.85 / Bibliography --- p.87

This study analyzes the effect of three different high school scheduling options on the delivery of biology instruction, on student achievement, and on student perceptions of their instructional activities. Participants were biology students and teachers from twelve high schools in a north Texas urban school district of 76,000. Block classes had 11 to 18 percent less instructional time than traditional classes. Texas Biology I End-of-Course Examination achievement results for 3,195 students along with student and teacher surveys provided information on instructional activities, attitudes, and individualization. Using an analysis of variance at a j i< .01 the following results were found; student achievement was significantly different for each of the scheduled comparisons groups, test score means were not statistically significant between the scheduled comparison groups for different ethnic groups, economically disadvantaged students, and magnet students. No significant differences were found between the science learning activity index for each of the scheduled groups. Student response data when disaggregrated and reaggregrated into program groups found a statistically significant higher index of science activity at a p. < .01 for magnet students when compared to both the regular and honor students. Regular program students had a significantly higher index of individualization than honors program students. Accelerated and rotating block classes were found to hold a significantly more positive attitude about their science learning conditions than did the traditional students. These data suggest that during the first two years of block scheduling, the initial impact of block scheduling, where total time for science is reduced, results in lower student achievement scores when compared to traditionally scheduled classes. Yet, block scheduled student attitudes and perceptions about science learning are significantly more positive than the traditionally scheduled students.

Student's verbal participation in science classrooms is an essential element in building the skills necessary for proficiency in scientific literacy and discourse. The myriad of new, multisyllabic vocabulary terms introduced in one year of secondary school biology instruction can overwhelm students and further impede the self-efficacy needed for concise constructions of scientific explanations and arguments. Factors inhibiting students' inclination to answer questions, share ideas and respond to peers in biology classrooms include confidence and self-perceived competence in appropriately speaking the language of science. Providing students with explicit, engaging instruction in methods to develop vocabulary for use in expressing conclusions is critical for expanding comprehension of science concepts. This study fused the recommended strategies for engaging vocabulary instruction with linguistic practices for teaching pronunciation to examine the relationship between a student's ability to pronounce challenging bio-terminology and their propensity to speak in teacher-led, guided classroom discussions. Interviews, surveys, and measurements quantifying and qualifying students' participation in class discussions before and after explicit instruction in pronunciation were used to evaluate the potential of this strategy as an appropriate tool for increasing students' self-efficacy and willingness to engage in biology classroom conversations. The findings of this study showed a significant increase in student verbal participation in classroom discussions after explicit instruction in pronunciation combined with vocabulary literacy strategies. This research also showed an increase in the use of vocabulary words in student comments after the intervention.

Improving the STEM readiness of students from historically underserved groups is a moral and economic imperative requiring greater attention and effort than has been shown to date. The current literature suggests a high school science sequence beginning with physics and centered on developing conceptual understanding, using inquiry labs and modeling to allow students to explore new ideas, and addressing and correcting student misconceptions can increase student interest in and preparation for STEM careers. The purpose of this study was to determine if the science college readiness of historically underserved students can be improved by implementing an inquiry-based high school science sequence comprised of coursework in physics, chemistry, and biology for every student. The study used a retrospective cohort observational design to address the primary research question: are there differences between historically underserved students completing a Physics First science sequence and their peers completing a traditional science sequence in 1) science college-readiness test scores, 2) rates of science college-and-career readiness, and 3) interest in STEM? Small positive effects were found for all three outcomes for historically underserved students in the Physics First sequence.

published_or_final_version / Education / Master / Master of Education