A mixed methods analysis of the effects of an integrative geobiological study of petrified wood in introductory college geology classrooms

Mixed methods research conducted across three semesters in introductory college geology classes (n = 187, 190, 138) attempted to ascertain whether integrated study of petrified wood could serve as a portal to improved student geobiological understanding of fossilization, geologic time, and evolution. The Petrified Wood Survey? was administered as a preinstructional and postinstructional assessment in control and experimental classes; the experimental class received integrated petrified wood instruction. Paired t tests of differences in students' pre‐ and postinstructional scores for control and experimental groups revealed significance (α = 0.05, effect size = 0.79, confidence interval 0.56–1.01). The students with integrative study showed greater knowledge gains about petrified wood's abundance, properties, nature, location, and geologic time. However, understanding of fossilization geochemistry remained problematic for both groups. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 44: 1011–1035, 2007     

考研要花多长时间准备

刚动了考研念头的低年级同学对考研的整个过程和细节十分模糊,他们更多的是一种愿望,冲劲.由于对细节的认识不清楚,同学们经常会提一些不好回答的问题,最经常的在bbs上看到的是这样一条:各位大虾,我是一名刚上大学的新生,我想毕业时考研究生,但对此一无所知(或说知甚少),谁能给我一些建议吗(或谁能给我指点迷津)?     

Training Teachers to Teach Statistics

This is a report on the International Statistical Institute's Round Table Conference, 23rd-27th July, 1988, held in Hungary, and convened by Anne Hawkins.     

Reciprocal peer tutoring and repeated reading: Increasing practicality using student groups

Previous research has investigated the efficacy of peer‐mediated repeated reading (RR) interventions carried out by student dyads. This research extends the existing research by investigating the impact of RR on oral reading fluency and comprehension when carried out by a teacher in small groups of fourth‐grade students. Outcomes were analyzed using a multiple baseline single case design across groups in addition to supplementary analyses (dual level and trend criteria, percentage of non‐overlapping data, class box plots). Visual analysis of results indicated that RR was effective in improving levels of reading fluency and reading comprehension skills of four targeted students as well as classwide performance in fluency and comprehension. Acceptability ratings showed that the small group format was easy to implement and acceptable to the teacher and students. Despite positive findings, RR may need to be supplemented by other instructional and practice strategies to promote consistent and comprehensive changes beyond fluency. © 2010 Wiley Periodicals, Inc.     

Career barriers perceived by hard-of-hearing adolescents: implications for practice from a mixed-methods study

This study incorporated both quantitative and qualitative methods to examine the perception of career barriers by hard-of-hearing high school students being educated in regular classes with itinerant teacher support. Sixty-five students in Years 10, 11, and 12 completed a questionnaire about potential general and hearing-related barriers, and 12 of these respondents were subsequently interviewed. Findings indicated that other people's lack of understanding of their hearing loss constituted the greatest potential barrier to adolescents' educational and career goals. Students anticipated several other barriers in the form of functional hearing-related difficulties. Most students showed little awareness of helpful strategies or job accommodations and some had prematurely foreclosed on career choices. Implications for practice are outlined, and recommendations for teachers and career counselors are made.     

Examining listening previewing as a classwide strategy to promote reading comprehension and vocabulary

Classwide instructional strategies to improve not only reading fluency but also comprehension and vocabulary knowledge are essential for student reading success. The current study examined the immediate effects of two classwide listening previewing strategies on reading comprehension and vocabulary knowledge. Twenty‐one, fourth‐grade general education students were exposed to three experimental conditions including a silent reading control condition, a listening previewing condition, and a listening previewing with vocabulary previewing condition. For all conditions, students read grade‐level passages, answered 10 comprehension questions, and completed a vocabulary‐matching task. Results showed that both listening previewing conditions led to improvements in comprehension as compared to silent reading. Adding a vocabulary previewing component to listening previewing procedures resulted in the highest levels of comprehension and vocabulary. Applied implications and directions for future research are discussed. © 2010 Wiley Periodicals, Inc.     

Analysis of the supporting websites for the use of instructional games in K-12 settings

This paper identifies resources to be included in a website designed to facilitate the integration of instructional games in K-12 settings. Guidelines and supporting components are based on a survey of K-12 educators who are integrating games, an analysis of existing instructional game websites, and summaries of literature on the use of educational software in K-12 settings and teacher technology training. The results indicate that educators face three main challenges when integrating games, including: (1) curriculum integration, (2) technical and logistical requirements, and (3) teacher training. To overcome these challenges, K-12 educators should be provided with: (1) curriculum resources, (2) game technical information and support, and (3) communication tools. Websites designed to facilitate the use of instructional games should be designed with appropriate structures (ie, grid, web, hierarchy) to optimise organisation and simplicity. In addition, the websites should include teacher training that (1) apply a teacher training model, (2) address National Educational Technology Standards, (3) present contents in small doses, (4) make training and information as accessible as possible, and (5) model and mentor the use of instructional games.