Enhancing Science Learning Through the Introduction of Effective Group Work in Hong Kong Secondary Classrooms

This study compares the learning results of three groups of secondary two (grade eight) students of a similar academic standard who participated in a teaching intervention involving different pedagogies. One hundred and forty-nine Hong Kong secondary students were chosen and divided into three groups, “whole-class teaching approach”, “group work with no specific strategies” and “group work with effective strategies”, to study the “space travel” unit in their science curriculum. The first group was exposed to traditional whole-class instruction, and the latter two practised collaborative group work, with the third adopting four effective strategies derived from a UK-based quasi-experimental project. Analyses of the pre- and post-diagnostic assessments and audiotaped discussions revealed that group work comprising effective strategies not only raised students’ test scores, but also enhanced their joint construction of conceptual knowledge in science. The findings suggest that the effective strategies adopted in this study are contributory factors to superior student accomplishments and a stronger desire to seek clarification accruing from shared cognitive activities.     

Beyond genetics in Mental Rotation Test performance: The power of effort attribution

This study compares the effects on Mental Rotation Test (MRT) performance of instructions that stress the importance of (a) personal effort, and (b) genetically driven ability. A total of 120 high-school students were assigned to three groups, and administered two sub-tests of the MRT. Between the first and second sub-tests, the groups received one of the following instructions: effort (“anyone can succeed in this task by putting in effort”), ability (“performance on the test depends on genetic determinants”), and neutral for control (“this is an important test used in many countries”). We predicted that effort but not ability instructions would affect performance. Results confirmed the prediction and showed that, after controlling for baseline performance, the effort group outperformed the ability and control groups, which did not differ from each other. Discussion focuses on the mechanisms implied in believing ability to be genetically determined or experientially driven.     

Using collaborative two‐stage examinations to address test anxiety in a large enrollment gateway course

Large enrollment foundational courses are perceived as “high stakes” because of their potential to act as barriers for progression to the next course or admittance to a program. The nature of gateway courses makes them ideal settings to explore the relationship between anxiety, pedagogical interventions, and student performance. Here, two‐stage collaborative examinations were implemented to improve test‐taking skills and address widespread test anxiety in an introductory human anatomy course. Test anxiety data were collected (using the Motivated Strategies for Learning Questionnaire) before the first examination and last examination. Most students experienced decreased test anxiety over the course of the semester; however, some students may have experienced performance limiting conditions due to test anxiety at the end of the semester based on academic ability in the course (in “C” students when compared to “A” students: P < 0.00006 and “B” students: P < 0.05), overall academic ability (in academically weaker students: P < 0.025), and demographic factors (in women: P < 0.025). The strongest performances on examinations were primarily observed in already academically strong students (mean individual performance: P < 0.000, mean group performance: P < 0.000). Furthermore, changes in test anxiety were not significantly associated with the group portion of the examinations. Patterns of changes in test anxiety over the course of the semester underscore a complex interaction between test anxiety, student background, and student performance. Results suggest that pathways for test anxiety in “high stakes” courses may be separate from the mechanisms responsible for the benefits of collaborative testing. Anat Sci Educ 10: 409–422. © 2017 American Association of Anatomists.     

博士生跨学科课程实施:内在逻辑、现实困境与突破路径

在国家大力实施创新驱动发展战略和知识生产模式转型背景下,实施跨学科课程对提高博士生培养质量具有很强现实意义。在实施博士生跨学科课程中,需要遵循知识体系中“博大”与“精深”的平衡、教学过程中“个体”与“团体”的互动、教学内容中“教学”与“科研”的协同三对逻辑关系。囿于传统博士生教育的路径依赖影响和博士生跨学科课程的内在逻辑衍生出的现实需要制约,高校实施博士生跨学科课程面临诸多困境。从成立跨学科组织、以实践为导向开展教学、改进课程评价机制、完善学术交流平台等几个方面提出了我国高校博士生跨学科课程实施的突破路径。     

The effects of digital storytelling on student achievement,social presence,and attitude in online collaborative learning environments

This study investigated the effects of digital storytelling on student achievement, social presence, and attitude in online collaborative learning environments. Students in one middle school course were randomly assigned to one of the two treatment groups after they received initial general instruction regarding teamwork skills. The “digital storytelling-based online collaborative learning (DST-OCL)” and the “general online collaborative learning (G-OCL)” groups received subsequent associated skills training. The overall results indicated that after each group took part in the treatment during online collaborative learning activities, the “DST-OCL” groups had significantly higher social presence than the “G-OCL” groups. Specifically, using “DST-OCL” strategies was significantly more effective than using “G-OCL” strategies for improving the “online communication,” “interactivity,” and “privacy” components of students’ social presence in online collaborative learning environments. There was no significant difference between the two groups regarding student achievement and attitude. The findings of this study offer an insight into methods for using digital storytelling as an instructional strategy for improving online collaborative learning effectiveness.     

STUDENT COMPARISONS OF EDUCATIONAL EXPERIENCES AT THE TWO‐YEAR COLLEGE AND THE UNIVERSITY: A PRELIMINARY STUDY

Student evaluations of instruction were obtained from two groups. Students in the first group were “reverse transfer” students (N = 97) who completed their freshman year at a university and then transferred to a two‐year college for their sophomore year. Students in the second group were “early transfer” students (N = 78) who completed their freshman year at a two‐year college and then transferred to a university. All students had one year of attendance at a two‐year college and one year at a university. The purpose of the study was to analyze the ratings of both groups of students with regard to their academic experiences at the university and at the two‐year college. An adaptation of the Student Instructional Report (SIR) was used to obtain ratings on overall college experiences from all students at the end of their sophomore year. The findings revealed: (1) considerable similarity of ratings given to the two‐year college and the university, (2) differences between ratings of early transfer and reverse transfer students, and (3) generally high ratings for both the two‐year college and the university.     

高职英语学习困难群体成因分析及其对策

提高高职学生英语教学效果,一直是广大教师努力工作的目标。根据英语基础及课堂表现,笔者将高职学生分为“活跃族”、“沉闷族”和“恐惧族”三类群体。文章对“沉闷族”和“恐惧族”的英语学习,进行成因心理分析。通过教学心理干预和教学多“给力”组合,以提高学习积极性,增强学习效果。根据实践教学,笔者进行了理性的分析和探讨。     

“三T”教学法在程序设计类课程中的应用

在高职院校程序设计课程中采用“三T”教学法,明显提高学生学习兴趣,教师和学生在教学的过程中都取得了成就感。“三T”教学法将任务教学法、分组式教学法和复线型教学法结合在一起,形成新的复线型分组式任务教学法。教师设计每一个教学任务,学生有明确的任务清单,有实现任务的步骤和所需要的知识和工具。学生在教师的指导下,逐步接近任务目标,在遇到问题时有针对性的学习,最终完成任务,取得学习成果。     

Modified Reciprocal Teaching in a Regular Classroom

This study was designed to increase reading comprehension and academic achievement of students through the use of a modified reciprocal teaching program. Modified reciprocal teaching involved small groups of students working together to read and comprehend a portion of text. The students took turns “teaching” these groups by assisting the rest of the group in selecting key words and phrases, summarizing, questioning, clarifying, and predicting. Students were randomly assigned to one of three seventh-grade regular education social studies classes. One class used modified reciprocal teaching twice a week for 8 weeks. The other two classes received a traditional instructional program. All classes were taught by the same teacher. Significant differences included higher scores on comprehension tests and writing samples, improvement in second-quarter social studies grades, and better conduct records for students who participated in modified reciprocal teaching. Several explanations for the superior performance of the modified reciprocal teaching group are hypothesized.     

Science performance assessments: benchmarks and surrogates

This study examined the exchangeability of alternative methods for measuring science achievement at the elementary level. Observation of a student performing a hands-on investigation was considered to be the “benchmark” method for science performance assessments. Four less-costly methods — or possible “surrogates” for the benchmark — were, in order of decreasing verisimilitude: (a) A notebook report of an investigation, (b) a computer simulation of an investigation, (c) short-answer questions about an investigation, and (d) multiple-choice questions about an investigation. Exchangeability of each of the four surrogates for the benchmark was examined using three different investigations: “Electric Mysteries,” “Paper Towels,” and “Bugs.” One hundred and ninety-seven fifth- and sixth-grade students were given: (a) All investigations with each method, (b) a multiple-choice science achievement test, and (c) an aptitude test. Results of exchangeability analyses indicated that only the notebook provided a reasonable surrogate for the benchmark. This finding was replicated across the three investigations. Moreover, combinations of surrogates, including the multiple-choice science achievement test, failed to approximate information gained from direct observation of student performance, over and above information provided by the notebook surrogate.     

The role of the e‐tutor in synchronous online problem‐based learning: A study in a Master Public Health Programme

The aim of this study is to compare the role of the tutor in an online and a face‐to‐face problem‐based learning (PBL) session to shed light on potential differences of the tutor role in both settings. In this practice‐based study we compared the two groups with the same tutor undertaking the same module. Students completed questionnaires about tutor performance, student characteristics and the module. Marks on the end‐of‐module test were analysed. The tutor was interviewed about his expectations and experiences. One session of each group was recorded and analysed qualitatively. Results show tutor tasks appeared to be comparable in both settings with regard to “content and pedagogical content knowledge,” “group dynamics,” “process instruction” and “intermediary between faculty and students.” The face‐to‐face group rated tutor performance lower than the online students. Students and tutor identified the absence of nonverbal cues as a limitation of online PBL. In online sessions the tutor additionally provided technical support and moderated the chat box. It is recommended to involve an extra person in online sessions who is responsible for technical issues. This person could also check the chat box for messages of students. Future research should focus on the necessity of an extra tutor training for online sessions.     

Effects of group size and advance organizers on learning parameters when using microcomputer tutorials in kinematics

The purpose of this study was to investigate how the use of CAI tutorial programs, incorporating advance organizers and involving various sizes of groups of subjects, would affect students' achievement scores, retention scores, and rates of learning. Used as subjects were 100 suburban high school physics students running interactive tutorial physics programs focusing on strobe simulation and displacement-time and velocity-time graphs. For fifty students (experimental group) an advance organizer program preceded each tutorial. The remaining fifty students (control group) had an advance non-organizer program preceding each tutorial. While pursuing the tutorials the students worked individually or together in groups of two, three, or four. Five days were allocated for the students to repeat the four tutorials until 90% competency level was attained. Achievement and retention were measured by individually administered paper-pencil teacher-made tests sampling the content of all four tutorials. Rate of learning was determined for groups by the number of times the first three tutorial programs were executed in order to attain 90% competency. In the two-way analysis of variance the only significant result at the 0.05 level pertained to group size. Results of the Tukey Test revealed that students working in groups of three and four on CAI tutorials had significantly better rates of learning than students working alone. No significant differences in achievement or retention were observed for the various groups. The implications for using CAI tutorials in physics point to grouping students in fours as a time saving and economic method of presenting material without significant loss of achievement or retention.     

Effects of thematic‐based,hands‐on science teaching versus a textbook approach for students with disabilities

Institutions of higher education, states, and local K–12 districts have been challenged to improve math and science education for our nation's students. In the past few years, there has been renewed interest in inquiry‐based, activity‐oriented instruction in science for students with disabilities. Yet, there still exists the need for further empirical evidence to support instructional improvements for students with more involved emotional and behavioral disabilities. This study describes a program in which 18 middle school students with serious emotional disturbances were instructed, over the course of 8 weeks, on “Matter” by two different instructional approaches. Students in one classroom received a traditional textbook approach to science content, whereas students in another classroom received science instruction by a hands‐on, thematic approach. Over the course of instruction, data were collected regarding students' behavior and achievement. Results indicate that, overall, students in the hands‐on instructional program performed significantly better than the students in the textbook program on two of three measures of science achievement, a hands‐on assessment and a short‐answer test. The students did not differ on a multiple‐choice format test. With regard to behavior, there were no significant differences in behavioral problems found between the two groups of students over the course of the study. Findings are discussed in relation to instructional implications for students with disabilities in the science classroom. © 2005 Wiley Periodicals, Inc. J Res Sci Teach 42: 245–263, 2005     

A comparison among three experimental education programs

The primary characteristics of the three programs are used to compare participants to each other and to a group of students in the regular curriculum: (1) development of logical thought, (2) broader educational development, and, (3) career development, as well as selected academic characteristics (grades academic aptitude). The programs and their evaluations are described. The outcomes claimed for each program occurred more frequently in that program than in the comparison groups. The absence of differences in grades, despite differences in academic ability and in extent of program involvement, is interpreted as further evidence of the insensitivity of grades. The question of generality of the results is explored briefly.     

The factor structure of the longeot test: A measure of logical thinking

Using a random sample of 389 grade 11 science students, the factor structure of the Longeot test (a measure of logical thinking) is investigated and some psychometric properties of the test items are determined. Varimax rotation on six principal component factors resulted in a simple structure. An attempt is made to interpret the obtained orthogonal factors. Implications of the findings on the “unity hypothesis” of the Piagetian construct of logical thinking and, consequently, on grade 11 science education are discussed.     

Can we Evaluate the Impact of a Critical Detail? The Role of a Type of Diagram in Understanding Optical Imaging

This paper describes an attempt at evaluating a potentially critical “detail” of teaching practice; that is, using a particular diagram to illustrate the imaging role of a converging lens. This “basic” diagram has been designed to contribute to help students overcome the well‐known “travelling image” syndrome. We conducted a comparative study with 125 students in all, at three academic levels: end of secondary school, degree students, and teacher training. The groups compared had previously been taught elementary optical imaging in a classical, uncontrolled manner, and were presented with two classical questions, commonly used to demonstrate students’ difficulties. In each group, one‐half of the students had a classic introductory diagram and the other half had the “basic” one. A positive reaction of students to the evaluated diagram was observed at a relatively high academic level (trainee physics teachers and degree students), in contrast with an apparent lack of effect at the end of secondary school. The paper ends with a discussion of the evaluation of a detail of practice in isolation, with respect to the distance between students’ actual and targeted levels of comprehension.     

Teaching science as a language: A “content‐first” approach to science teaching

Our research project was guided by the assumption that students who learn to understand phenomena in everyday terms prior to being taught scientific language will develop improved understanding of new concepts. We used web‐based software to teach students using a “content‐first” approach that allowed students to transition from everyday understanding of phenomena to the use of scientific language. This study involved 49 minority students who were randomly assigned into two groups for analysis: a treatment group (taught with everyday language prior to using scientific language) and a control group (taught with scientific language). Using a pre–post‐test control group design, we assessed students' conceptual and linguistic understanding of photosynthesis. The results of this study indicated that students taught with the “content‐first” approach developed significantly improved understanding when compared to students taught in traditional ways. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 529–553, 2008     

Learning the Cell Structures with Three-Dimensional Models: Students’ Achievement by Methods, Type of School and Questions’ Cognitive Level

The cell topic was taught to 9th-grade students in three modes of instruction: (a) students “hands-on,” who constructed three-dimensional cell organelles and macromolecules during the learning process; (b) teacher demonstration of the three-dimensional model of the cell structures; and (c) teaching the cell topic with the regular learning material in an expository mode (which use one- or two-dimensional cell structures as are presented in charts, textbooks and microscopic slides). The sample included 669, 9th-grade students from 25 classes who were taught by 22 Biology teachers. Students were randomly assigned to the three modes of instruction, and two tests in content knowledge in Biology were used. Data were treated with multiple analyses of variance. The results indicate that entry behavior in Biology was equal for all the study groups and types of schools. The “hands-on” learning group who build three-dimensional models through the learning process achieved significantly higher on academic achievements and on the high and low cognitive questions’ levels than the other two groups. The study indicates the advantages students may have being actively engaged in the learning process through the “hands-on” mode of instruction/learning.     

Small Group Behavior of 5-Year-Old Children under Three Kinds of Educational Stimulation

This study was designed to investigate differential effects on the small group behavior among 5-year-old children of three alternative approaches to educational stimulation. The Ss were forty-eight children in a “Traditional Kindergarten Approach,” forty-eight children under the “Creative-Aesthetic Approach” and ninety-six children under the “Cognitive-Structured Approach.” They were assigned to 4-person groups to function in teams to match correctly twelve sets of twin faces on plaques. The experimenter oriented entire classes (15 to 25 children each) to the concept of team behavior and an observer was assigned to each 4-person group. There were no statistically significant differences among the three sets of groups on amount of time required to complete the task. The behavior of the “Traditional Kindergarten” groups could be characterized as alert, cooperative, enthusiastic, organized, and friendly. That of the “Creative-Aesthetic” children could be described as bickering, fighting, absorbed, and enthusiastic. That of the “Cognitive-Structured” could be characterized as somewhat apathetic, inattentive, low in friendliness, and lacking in organization.