Sex-related differences in the acquisition of the van hiele levels and motivation in learning geometry

The purpose of this study was to examine the acquisition of the van Hiele levels and motivation of sixth-grade students engaged in instruction using van Hiele theory-based mathematics curricula. There were 150 sixth-grade students, 66 boys and 84 girls, involved in the study. The researcher employed a multiple-choice geometry test to find out students’ reasoning stages and a questionnaire to detect students’ motivation in regards to the instruction. These instruments were administered to the students before and after a five-week period of instruction. The paired-samples t-test, the independent-samples t-test, and ANCOVA with α = .05 were used to analyze the quantitative data. The study demonstrated that there was no statistically significant difference as in motivation between boys and girls, and that no significant difference was detected in the acquisition of the levels between boys and girls. In other words, gender was not a factor in learning geometry.     

PBL in teacher education: its effects on achievement and self-regulation

Problem-based learning (PBL) as an educational practice continues to have great impact on all levels of education and across different disciplines. The aim of this experimental study is to examine the effects of PBL on prospective teachers’ academic achievements and self-regulation. The treatment group (n?=?36) and the control group (n?=?21) comprised Middle East Technical University Language Teaching Department senior students attending the Language Testing and Evaluation Course. Quantitative data were collected via an achievement test, an open-ended application exam and a scale on self-regulation in learning. Qualitative data were obtained through student interviews. The quantitative results revealed that PBL was effective for students’ knowledge, comprehension and application-level achievements, but it had no significant effects on their self-regulation. The content analysis of student interviews yielded some positive findings about the application of PBL in teacher education, its strengths and weaknesses as experienced during implementation, together with individual and group work processes involved. The study offers some suggestions for the application of PBL in large classes generally and specifically in a teacher education course.     

The Student Actions Coding Sheet (SACS): An instrument for illuminating the shifts toward student‐centered science classrooms

This study describes the development of an instrument to investigate the extent to which student‐centered actions are occurring in science classrooms. The instrument was developed through the following five stages: (1) student action identification, (2) use of both national and international content experts to establish content validity, (3) refinement of the item pool based on reviewer comments, (4) pilot testing of the instrument, and (5) statistical reliability and item analysis leading to additional refinement and finalization of the instrument. In the field test, the instrument consisted of 26 items separated into four categories originally derived from student‐centered instruction literature and used by the authors to sort student actions in previous research. The SACS was administered across 22 Grade 6–8 classrooms by 22 groups of observers, with a total of 67 SACS ratings completed. The finalized instrument was found to be internally consistent, with acceptable estimates from inter‐rater intraclass correlation reliability coefficients at the p < 0.01 level. After the final stage of development, the SACS instrument consisted of 24 items separated into three categories, which aligned with the factor analysis clustering of the items. Additionally, concurrent validity of the SACS was established with the Reformed Teaching Observation Protocol. Based on the analyses completed, the SACS appears to be a useful instrument for inclusion in comprehensive assessment packages for illuminating the extent to which student‐centered actions are occurring in science classrooms.     

博洛尼亚进程以来土耳其高等教育国际化发展研究

自加入博洛尼亚进程以来,土耳其通过师生的国际流动、国际教育交流、课程和学术研究、国际合作办学等推进高等教育国际化.研究发现,质量提升仍是土耳其高等教育国际化建设的核心.为实现世界第十大经济体的目标,土耳其仍需努力赋予大学更多自主权、增加以英语作为教学语言的课程比重、提高质量认证成效和建设世界一流大学.