The effect of teacher vagueness terms on student performance in high school biology

High school biology students (n = 48) were each randomly assigned to one of four groups defined by possible combinations of two teacher vagueness conditions (high vagueness versus low vagueness) and two post-lesson conditions (test, then lesson evaluation versus lesson evaluation, then test). Each group was presented a lesson over the vascular system of angiosperms. After the lesson, each group was tested on comprehension of the material and each group completed a lesson evaluation. Teacher vagueness terms significantly affected student achievement and student perception of lesson effectiveness. These findings are discussed in relation to previous research on teaching clearly.     

Teacher, self and peer evaluation of lesson plans written by preservice teachers

The study investigated the effects of three types of evaluation on preservice teachers’ performance, knowledge and attitudes related to writing lesson plans that incorporate technology. Subjects were randomly assigned to one of the three treatment conditions: teacher-evaluation, self-evaluation or peer-evaluation. All groups completed three class periods of instruction on writing lesson plans, then each subject submitted his/her draft lesson plan. The drafts were evaluated by assigned evaluators (teacher, self or peer), who provided scores and written feedback on a 15-item rubric. Students then revised their lesson plans into final form. All three treatment groups improved their lesson plans significantly from draft version to final version, with the teacher-evaluation group showing significantly greater improvement and writing significantly better final lesson plans than each of the other two groups. Teacher-evaluation and self-evaluation groups had significantly higher scores on a knowledge-based posttest than the peer-evaluation group. Several suggestions are discussed for making further improvements in the self-evaluation and peer-evaluation processes.     

Enhancing in-service teachers’ professional learning through a school-based professional development programme in Hong Kong

ABSTRACT

Lesson study is a collaborative model of professional development that provides teachers with the opportunity to learn from the planning, conduction and reflection of a specifically designed research lesson. Lesson study is increasingly incorporated in initial teacher education (ITE) and calls have been made to further detail the lesson study structures that support student teacher learning. In this paper the core organisational elements of incorporating lesson study in ITE are investigated as a comparative case study situated in two distinct educational and cultural settings: one in Ireland (post-primary) and the other in Norway (primary). Qualitative data, including student teachers’ planning notes, research lesson designs, and observation notes from live research lessons, were analysed and findings reveal three structural factors for the incorporation of lesson study in ITE. First, defined roles of mentor and university teachers as knowledgeable others; second, the engagement of student teachers at each phase of lesson study, with the inclusion of case pupils; and third, the conduction of the lesson study cycle on both university campus and in the classroom. These findings contribute to the growing literature of lesson study in ITE and may support the inclusion of lesson study in ITE programmes.     

The effect of levels of cooperation within physical science laboratory groups on physical science achievement

The purpose of this study was to investigate the effect of the levels of group cooperation on students' achievement during a series of physical science laboratory activities. Six intact seventh-grade physical science classes taught by two teachers, with each teacher instructing three classes, were selected from two middle schools. For each teacher, one of the classes was taught with a traditional approach (no cooperative goal structure). The other two classes were assigned to a cooperative goal structure (role assignment and nonrole assignment). For the role assignment class, each student was assigned a specific role, but students in both traditional and nonrole assignment classes were not assigned roles. The Classroom Observation Instrument in Science Laboratory Activity (COISLA), which includes investigative skills (i.e., managing, manipulating, observing, reading, writing, and reporting); social skills (i.e., discussing, encouraging) and nonlearning behaviors (i.e., waiting, off-task), was used to measure the levels of group cooperation. The grades on lab reports and lab quizzes of students who were taught by the same teacher were compared to assess the effects of the different learning conditions. No significant differences on the students' final achievement were found with respect to the three instructional approaches followed by each teacher. The teacher effect was more significant than either instructional approach on managing, manipulating, observing, reading, and writing behaviors. No significant teacher effect was found for the other behaviors. Only one treatment effect was significant, writing behavior. Overall, the teacher effect was more influential than instructional approach on students' behaviors. In teacher A's classes, reading behavior predicted 21% of students' achievement. However, no significant correlations existed between the 10 collaborative behaviors and students' achievement in teacher B's classes.     

Living Animals in the Classroom: A Meta-Analysis on Learning Outcome and a Treatment–Control Study Focusing on Knowledge and Motivation

Prior research states that the use of living animals in the classroom leads to a higher knowledge but those previous studies have methodological and statistical problems. We applied a meta-analysis and developed a treatment–control study in a middle school classroom. The treatments (film vs. living animal) differed only by the presence of the living animal. Both treatments were based on the self-determination theory. More than 400 pupils filled in pre-test, post-test and two follow-up-tests (with a delay of 6–8 weeks and 7–8 months). After each lesson, pupils rated the lesson on a short intrinsic motivation scale. In the meta-analysis, we found that the living animal treatments significantly scored better than a control group, but not when comparing living animals with alternative treatments. In the treatment–control study, both treatments led to a significant increase in knowledge but there were no differences between film and living animal treatment. Pre-test and previous grading had a significant influence on post- and both follow-up tests. In the mouse lesson, pupils of the living animal group showed higher values in interest and competence and lower values in pressure. Interest and competence correlated positively with achievement, while pressure correlated negatively.     

Teacher Talk During Whole‐Class Lessons: Engagement Strategies to Support the Verbal Participation of Students with Learning Disabilities

The analysis identified discursive strategies used by general education teachers in inclusion classrooms to orchestrate and scaffold the verbal participation of all students, including students with learning disabilities (LD). The context was writing instruction. A whole‐class lesson involving teacher–student collaboration to write a text was analyzed for each of two teachers in two urban elementary inclusion classrooms totaling 67 students; 23 students had LD. Analysis of teacher talk focused on procedural strategies (help the lesson run smoothly and make it easier to follow) and involvement strategies (elicit students' attention to and participation in the lesson). Results indicated that both teachers used a variety of similar strategies to provide spaces for student contributions and, at the same time, move the lessons along. However, they also used contrasting strategies unique to their contrasting pedagogical frames of reference (structural vs. interactional).     

Information Feedback,Need Achievement and Retention 1

Abstract

A test of achievement motivation was administered to 260 sixth graders. One month later, students participated in a science reading lesson followed by a multiple-choice test based upon that lesson. Feedback regarding performance was provided according to a standardized procedure either immediately after the test, or with one, two or three day delays. Then a retention test was administered to each group three days alter feedback. Results demonstrated that students who received feedback with a delay of one day manifested greater retention than students who received immediate feedback. There were no significant differences among groups who were exposed to delays of one, two or three days. A positive relation between achievement motivation and retention was demonstrated. There was no interaction between achievement motivation and feedback schedules.     

Benefits and drawbacks of the teacher echo: findings from a video study

Abstract

The teacher echo refers to teachers’ almost verbatim repetition of student responses and can be used to provide implicit feedback about students’ achievement or understanding. Echoing student answers is a controversial strategy of classroom discourse, as some critics see it as a bad habit and consequently deny its use in the classroom. The aim of this research project was to learn more about the perceptions of unprejudiced, prospective teachers on this controversial type of teacher feedback. Therefore, two short videos of a simulated lesson with and without teacher echo were created. A sample of 410 teacher trainees was asked to rate the perceived instructional quality and answer a knowledge test about the lesson contents. Results showed no significant differences in perceived cognitive activation and teacher dominance, but higher perceived constructive support and better knowledge acquisition when using the teacher echo. Thus, its application seems to be more beneficial than harmful.     

Manual Arts Based on Home Repair

Abstract

This study was undertaken to determine if remarks about a teacher’s ability made by an authority figure prior to observation of that teacher would significantly influence the evaluation of that teacher’s effectiveness. Thirty-four graduate students in educational supervision rated a videotaped lesson; seventeen were led to believe the teacher was an excellent teacher and the other seventeen that the teacher was less than effective. Results confirmed that there was a significant difference in the ratings of the videotaped lesson by the two groups, with the group led to expect better performance rating the videotaped lesson higher. It is concluded that those making evaluations of teaching behavior are highly influenced by verbal comments that led them to expect either excellent or less than average performance.     

The Impact of Teacher Classroom Practices on Student Achievement during the Implementation of a Reform‐based Chemistry Curriculum

Evidence of a gap in student understanding has been well documented in chemistry: the typical student holds an abundance of misconceptions. The current expectation is that educational reform will foster greater student achievement via inquiry teaching within classrooms. Using assessments involving both conceptual and algorithmic knowledge of gas behaviour, gas laws, and phase changes in chemistry, this study aims to determine the relationship between inquiry teaching and student achievement. The topics were tested in the context of a unit from a reform‐based curriculum that features inquiry, hands‐on activities, and cooperative learning. This curriculum provides step‐by‐step guidance for each lesson in the teacher materials, in order to promote quality inquiry teaching. Two schools were involved in this study, with two high school chemistry teachers from each school. Each teacher participated in professional development and implemented this curriculum with sufficient training and guidance to develop reform methods. Student achievement was found to positively correlate with the use of inquiry teaching about the assessed concepts, regardless of teacher experience or school context.     

Identifying mentors’ observations for providing feedback

Mentors’ feedback can assist preservice teachers’ development; yet feedback tends to be variable from one mentor to the next. What do mentors observe for providing feedback? In this study, 24 mentors observed a final-year preservice teacher through a professionally video-recorded lesson and provided written notes for feedback. They observed the lesson for a second time and focused their feedback on the preservice teacher’s questioning only. Findings showed that the mentors’ written feedback varied considerably when open observations occurred. However, there were fewer items when they focused on one teaching practice (i.e. questioning), which also provided a deeper analysis of this specific practice. Research is required around the dimensions of observations (i.e. visual, auditory and conceptual), observations of specific practices, and methodological approaches for observing and collecting data about a preservice teacher’s practice.     

Teacher Practices and Middle‐school Science Achievements

We report on the construction and application on an instrument entitled the “Science Achievement Influences Survey” to assess combined effects of student attitudes about science, peer interaction, and home support, and the frequency of student‐centred and teacher‐centred instructional practices on student achievement. Controlling for pre‐test content knowledge, results indicated that student‐centred teaching practices have a positive association with student achievement (p < .01; i.e., group experiments) and a negative association with teacher‐centred teaching practices (p < .01; i.e., copying notes). Additionally, student attitudes about science were positively associated with student‐centred teaching practices (p < .01) and negatively associated with teacher‐centred teaching practices (p < .01). Most significantly, this study documents the predicted gains in science achievement associated with frequency of specific instructional practices used by middle‐school science teachers. Especially noteworthy and significant is the finding that near‐daily implementation of group experiments and reduction of extensive note‐copying during class yield the greatest positive impact on student achievement. Outside of school, peer interaction and home support were not significantly associated (p > .05) with student achievement. The student sample included 611 middle‐school science students with a wide range of socioeconomic and cultural backgrounds.     

Multiple dimensions of teacher identity development from pre-service to early years of teaching: a longitudinal study

Based on dialogical self theory framework that highlights three dimensions of identity construction (multiplicity vs. unity; social vs. individual; discontinuity vs. continuity), this study explored multiple aspects of teacher identity development over time, in relation to the unity of self, the way the social environment is negotiated, and the shifting or continuing pattern over time. The study employed a qualitative, longitudinal study design that followed five pre-service teachers for four years, including three waves of interviews. Variations of each participant’s journey to develop their teacher identity over time are described. Implications relevant to researchers, teacher educators, and pre-service and beginning teachers are discussed.     

A Review of Empirical Literature on Inquiry Professional Development: Alignment with Best Practices and a Critique of the Findings

This review brings together the literature on inquiry-based teaching and learning and science teacher professional development (PD). We present a targeted critical review of research focused specifically on the nature of PD programs purported to emphasize inquiry. Our review analyzes the features of each program and critiques the reported outcomes of each study. Findings from this review suggest a general alignment with recommended features of effective PD as outlined in the literature with a few notable exceptions, including: supporting teachers in developing inquiry-based lesson plans, providing authentic inquiry experiences, and focusing on science content for teachers. More importantly, our review reveals that no reported study has connected participation in inquiry-based PD with all the desired outcomes of teacher PD: enhanced teacher knowledge, change in beliefs and practice, and enhanced student achievement. Implications for future research on inquiry-based PD programs are discussed.     

What Are the Effects of Science Lesson Planning in Peers?—Analysis of Attitudes and Knowledge Based on an Actor–Partner Interdependence Model

This study focuses on the effects of collaborative lesson planning by science pre-service teachers on their attitudes and knowledge. In our study, 120 pre-service teachers discussed a preparation for a science inquiry lesson in dyads. The teacher with the lesson preparation had the role of the coachee, while the other was the coach. We investigated the following research questions: (1) Does learning occur between the two peers? and (2) Is the competency in lesson planning affected by the attitude and knowledge of coach and coachee? Based on an actor–partner interdependence model (APIM), we could clarify the relations of pedagogical content knowledge (PCK) and attitudes (ATT) between and within the dyads of coach and coachee, as well as their development over time. Furthermore, the APIM allowed the inclusion of a mediator (lesson planning competency). Both PCK and ATT increased slightly but significantly during our project. ATT and PCK seemed to converge between coach and coachee at the end of the project. However, we could not find any cross-lagged effects, meaning there was no effect of coach on coachee or vice versa over time. Further, preceding PCK showed a significant effect on the competency of lesson planning, but planning competency did not influence succeeding PCK or attitude. Finally, these results are discussed with respect to science teacher education.     

绪论及其讲授技法

绪论是导入新课的第一步,也是对教师的专业水平、教学能力、个人修养的全面检验。讲好绪论课会为今后开展教学打下良好基础。本文论述了绪论课的重要性、绪论的结构组成、绪论内容的特点、绪论的讲授方法、讲授绪论课的注意事项等,以期为同仁讲好绪论课提供参考。     

McLuhan,Mass Media,and Education

A lesson in Gestalt theory was presented to college students via lecture, videotape, audiotape, and printed notes. Comparing the effectiveness of various mass media, it was found that the group with the printed notes performed best on an examination of the material, followed by the lecture and videotape groups who fared equally well, and by the audio tape group who did the poorest. A test of prolonged retention two months later revealed that each group showed a significant drop in level of retention, but the relationship between the various medias remained the same. The general findings gave no support to McLuhan’s theory that the medium is the message. The content of the material and the attitude of the students greatly influenced the effectiveness of the media.     

DNA microarray wet lab simulation brings genomics into the high school curriculum

We have developed a wet lab DNA microarray simulation as part of a complete DNA microarray module for high school students. The wet lab simulation has been field tested with high school students in Illinois and Maryland as well as in workshops with high school teachers from across the nation. Instead of using DNA, our simulation is based on pH indicators, which offer many ideal teaching characteristics. The simulation requires no specialized equipment, is very inexpensive, is very reliable, and takes very little preparation time. Student and teacher assessment data indicate the simulation is popular with both groups, and students show significant learning gains. We include many resources with this publication, including all prelab introductory materials (e.g., a paper microarray activity), the student handouts, teachers notes, and pre- and postassessment tools. We did not test the simulation on other student populations, but based on teacher feedback, the simulation also may fit well in community college and in introductory and nonmajors' college biology curricula.     

Learning About Posterior Probability: Do Diagrams and Elaborative Interrogation Help?

To learn from a text, students must make meaningful connections among related ideas in that text. This study examined the effectiveness of two methods of improving connections—elaborative interrogation and diagrams—in written lessons about posterior probability. Undergraduate students (N = 198) read a lesson in one of three questioning conditions (read twice, embedded questioning, and elaborative interrogation) and one of three diagram conditions (text only, diagram without redundant text, and diagram with redundant text). Elaborative interrogation negatively affected learning from the lesson, relative to reading the lesson twice. One possible explanation for this finding is that the quality of answers to the elaborative interrogations was poor. When the lesson was read twice, diagrams helped learning from the lesson relative to text only. Implications of these findings for instruction in probabilistic reasoning are discussed.