Evaluating two approaches to helping college students understand evolutionary trees through diagramming tasks

To understand evolutionary theory, students must be able to understand and use evolutionary trees and their underlying concepts. Active, hands-on curricula relevant to macroevolution can be challenging to implement across large college-level classes where textbook learning is the norm. We evaluated two approaches to helping students learn macroevolutionary topics. Treatment 1 is a laboratory for the software program EvoBeaker designed to teach students about evolutionary trees. We tested Treatment 1 among nine college-level biology classes and administered pre/posttests to assess learning gains. We then sought to determine whether the learning gains from Treatment 1 were comparable to those derived from an alternate hands-on treatment, specifically the combination of a prerecorded lecture on DVD and paper-based activity based on Goldsmith's Great Clade Race (Treatment 2). Comparisons of pre- and posttests among participants using either Treatment 1 or 2 show large learning gains on some misconceptions and skills beyond knowledge gained from reading standard textbook entries. Both treatments performed equivalently in overall learning gains, though both had areas where they performed better or worse. Furthermore, gains among students who used Treatment 1 representing a wide range of universities suggest that outcomes are potentially applicable to a variety of "real-world" biology classes.     

Instruction-first and problem-solving-first approaches: alternative pathways to learning complex tasks

According to cognitive load theory, using worked examples is an effective and efficient instructional strategy for initial cognitive skill acquisition for novice learners, as it reduces cognitive load and frees up cognitive resources to build task competence. Contrary to this, productive failure (as well as invention learning, desirable difficulties and other problem-solving-first) frameworks suggest that scaffolded problem-solving activities (a generation phase) preceding explicit instruction enhance learners’ performance. The reported experimental study investigated the effectiveness of different levels of instructional guidance provided to students during the learning phase preceding explicit instruction in standard solution procedures in enhancing students’ engagement and transfer problem-solving skills. Specifically, the study compared partially-guided or unguided attempts at generating problem solutions as opposed to comprehensive guidance, in the form of a worked example. Levels of experienced cognitive load and learner motivation were evaluated in addition to delayed post-test performance scores. There were no differences between the three groups on the transfer post-test outcomes, even though the condition with fully-guided worked examples prior to the explicit instruction expectedly reduced cognitive load relative to the conditions without such guidance. There were also differences between the conditions on some sub-dimensions of the motivation scale. In general, the findings indicate that similar overall outcomes (delayed transfer performance) could be achieved by different sequences of instructional tasks aimed at achieving different sets of specific goals.     

Student error patterns as a function of curriculum design: teaching fractions to remedial high school students and high school students with learning disabilities

This study evaluated the relative effectiveness of a curriculum that incorporated three empirically derived principles of curriculum design with a basal approach in teaching basic fractions concepts to students with learning disabilities and other low performing students in high school remedial math classes. The components of effective mathematics instruction articulated by Good and Grouws (1979) were implemented in both conditions. Thus, the curriculum design variables were isolated by keeping all other aspects of instruction constant. Results indicated that, although both programs were reasonably successful in teaching the material, the curriculum program utilizing sophisticated principles of curriculum design was significantly more effective. Mean scores on a curriculum-referenced test were 96.5% for that group and 82.3% for the basal group. Secondary analyses of item clusters revealed that areas of weakness in the performance of the basal group could be directly linked to hypothesized flaws in its curriculum design.     

Co-thought gestures: Supporting students to successfully navigate map tasks

This study considers the role and nature of co-thought gestures when students process map-based mathematics tasks. These gestures are typically spontaneously produced silent gestures which do not accompany speech and are represented by small movements of the hands or arms often directed toward an artefact. The study analysed 43 students (aged 10–12 years) over a 3-year period as they solved map tasks that required spatial reasoning. The map tasks were representative of those typically found in mathematics classrooms for this age group and required route finding and coordinate knowledge. The results indicated that co-thought gestures were used to navigate the problem space and monitor movements within the spatial challenges of the respective map tasks. Gesturing was most influential when students encountered unfamiliar tasks or when they found the tasks spatially demanding. From a teaching and learning perspective, explicit co-thought gesturing highlights cognitive challenges students are experiencing since students tended to not use gesturing in tasks where the spatial demands were low.     

A science need: Designing tasks to engage students in modeling complex data

In this information age, the capacity to perceive structure in data, model that structure, and make decisions regarding its implications is rapidly becoming the most important of the quantitative literacy skills. We build on Kaput’s belief in a Science of Need to motivate and direct the development of tasks and tools for engaging students in reasoning about data. A Science of Need embodies the utility value of mathematics, and engages students in seeing the importance of mathematics in both their current and their future lives. An extended example of the design of tasks that require students to generate, test, and revise models of complex data is used to illustrate the ways in which attention to the contributions of students can aid in the development of both useful and theoretically coherent models of mathematical understanding by researchers. Tools such as Fathom are shown as democratizing agents in making data modeling more expressive and intimate, aiding in the development of deeper and more applicable mathematical understanding.

从功能到存在:新型师生关系的构建

师生关系是教师和学生在教与学活动中形成的特殊社会关系和人际关系。传统的师生关系是以满足外在社会需要的功能性关系。存在性关系是把师生放在"作为教师的人"与"作为学生的人"的视域中从多种维度分析"教师"和"学生"之间的关系,其主要特点是:关注人身心发展的完整性;关注师生人格的平等性;关注交往过程的教育性。存在性师生关系建构的策略是:教师要全面了解和发现学生,树立正确的学生观;教师重构自我意识;师生之间相互理解与尊重、平等对话。     

Conceptions of learning and approaches to learning in Portuguese students

The article describes a study that attempted to characterise Portuguese students’ conceptions of learning and approaches to learning. A sample of university students answered open questions on the meaning, process and context of learning. Results, derived from content analysis, replicate most conceptions of learning described by phenomenographical research (i.e. distinction between learning as memorisation and learning as comprehension). Moreover, new variants of known conceptions of learning emerged (e.g. learning occurs through: exploratory practice; learning to learn; motivation) and an apparently new conception (i.e. learning as understanding and application). The same sample answered a questionnaire which attempted to measure motivation and learning strategies. Through factorial analysis of results it was possible to confirm the presence of three well-known approaches to learning: surface, deep and achieving.     

Attributional beliefs of Singapore students: relations to self-construal,competence and achievement goals

This study investigates attributional beliefs of Singapore secondary students in their English study and how they can be predicted by self-construal, competence and achievement goals. A total of 1,496 students were administered surveys on seven attributions, independent and interdependent self-construals, previous achievement, self-efficacy, mastery approach and avoidance goals and performance approach and avoidance goals. We found that Singapore students attributed academic success mainly to internal regulation (effort, interest and study skills), followed by teachers’ help, ability, parents’ help and tuition classes. Hierarchical regression analyses showed that three predictors (self-construal, competence and achievement goals) explained 4.2–12.3% of the variances in students’ attributional beliefs. In particular, students with interdependent self-construal, high competence or mastery goals tended to attribute academic success to internal regulation (effort, interest and study skills) and support from teachers and parents. Students with low competence, high mastery avoidance goals or high performance goals were more likely to value tuition classes, and those with high performance avoidance goals also tended to ascribe academic success to ability and parent’s help. The findings are discussed in relation to the culture of Singapore.     

医学生社会实践活动与就业的关系

医学生社会实践活动是大学生全面发展、健康成才的有效载体,文章从社会实践活动的视角对医学生就业中存在的突出问题进行阐述,并从任职教育、国情教育、医德教育等方面具体分析社会实践活动对医学生就业的积极作用。     

关于大学生就业途径及价值体现的探讨

本文从四个方面对大学生就业的途径进行了初步的探讨:一、报考公务员成为大学生就业的首选;二、大学生参军利国利己;三、各种企业成为大学生就业的主战场;四、大学生到边远地区锻炼或者自主创业也是就业的重要形式。进而阐明了大学生就业的一些基本途径和自身价值在其中的初步体现。     

Approaches to studying in higher education Portuguese students: a Portuguese version of the approaches and study skills inventory for students

This paper examines the validity of the Approaches and Study Skills Inventory for Students—short version (ASSIST; Tait et al. in Improving student learning: Improving students as learners, 1998), to be used with Portuguese undergraduate students. The ASSIST was administrated to 566 students, in order to analyse a Portuguese version of this inventory. Exploratory factor analysis (principal axis factor analysis followed by direct oblimin rotation) reproduced the three main factors that correspond to the original dimensions of the inventory (deep, surface apathetic and strategic approaches to learning). The results are consistent with the background theory on approaches to learning. Additionally, the reliability analysis revealed acceptable internal consistency indexes for the main scales and subscales. This inventory might represent a valuable research tool for the assessment of approaches to learning among Portuguese higher education students.     

Differential growth patterns in emerging reading skills of Turkish-German bilingual and German monolingual primary school students

Students from Turkish-speaking families are the largest minority language group in Germany. Yet, little is known about this group’s literacy development. Using data from a 3-year longitudinal study, we examined whether the same base reading skills are involved in early reading comprehension of 100 Turkish-German bilingual and 69 German monolingual children. We applied a basic theoretical model of reading development to examine how emerging literacy develops for monolingual compared to bilingual children. Both the bilingual and monolingual children in this sample developed the investigated base reading skills at the same rate. However, the relations among phonological awareness, German vocabulary, and word decoding showed differential patterns in the development of German reading comprehension skills for the two groups: monolingual children appeared to make use of their phonological awareness skills more, whereas reading comprehension depended more on vocabulary skills for bilingual readers. Our findings indicate that bilingual emerging readers require specialized models of reading development to account for their unique routes into reading comprehension. The results of the study point to a need for increased attention to vocabulary building in the early phases of literacy acquisition for bilingual children.     

Attracting mature students into higher education: The impact of approaches to learning and social identity

This paper reports on data collected during an evaluation of two higher education courses designed to attract mature entrants aged between 21 and 60 to undergraduate degree programmes. Employing an evaluation design informed by a critical realist approach, the study utilised a mix of quantitative and qualitative methods to investigate the outcomes of the two courses through the participants' constructed experiences. Two factors were inferred as being important in determining whether participants on these courses proceeded to higher education: whether participants adopted a deep or surface approach to learning, and the extent to which the experience of being on the courses had generated a shared social identity. Our analysis draws attention to interactions between (psychological) explanations of variation in learning and (social) explanations of participation.     

Learning approaches and lecture attendance of medical students

There are arguably many factors that affect the way a student learns. A recent report by the Higher Education Policy Institute (HEPI) and the Higher Education Academy (HEA) on student academic experience in the UK states that class size is an important factor in the quality of the student experience and that smaller class sizes provide greater educational benefit than the delivery of lectures. This article assesses research related to lectures, lecture attendance of medical students and their learning approaches in higher education outside the clinical setting. A questionnaire and focus groups were employed to gather quantitative and qualitative data. The results show that students value lectures in the curriculum alongside other teaching and learning methods.     

Action research and reflection on student approaches to learning in large first year university classes

This paper presents an action research approach to exploring methods of improving the learning styles and outcomes of first year university students within large class environments. The genesis of this project stemmed from an observation that entire tutorial groups were often lethargic in their approach to learning. Following a survey of learning styles, students were exposed to more student-centric teaching styles within tutorial groups, with a view to encouraging deeper student learning and self-regulated learning behaviours. Although the project was successful in motivating students' participation in class activities, no noticeable change to a sustained deeper learning style became evident. The findings suggest that simply motivating students to participate in class does not necessarily alter overall learning styles, at least in the short term. This suggests that the process of “unlearning” previous learning styles may pose a significant problem for instructors and it appears likely that the process of changing from surface to deep learning may require more than a single course intervention. However, there is some evidence that student-centred and self-regulated learning results in a more positive learning experience for both students and teachers. The article concludes with a model of proposed relationships uncovered by the research which deserve further exploration in the quest to provide greater levels of student satisfaction with their higher education experiences.     

Discipline knowledge and confidence to teach science: self-perceptions of primary teacher education students

There has been renewed debate in recent years about the relatively poor science discipline background knowledge of primary and preschool teachers, and their lack of confidence to teach science stemming from this. A reaction from teacher educators, such as recommended by theDiscipline Review of Teacher Education in Mathematics and Science Report, has been to provide more explicit science discipline units in pre-service teacher education courses. However, a few studies have cast some doubt on the notion that more science discipline studies (Skamp, 1989; Stepans & McCormack, 1985). This paper reports on pre-service students' perceptions of their cofidence to teach science before and after a science education unit adapted from the PECSTEP work (Kirkwood, Bearlin & Hardy, 1989), which included only a small amount of physical science, and took an explicit gender approach emphasising the students as learners. Specializations: primary teacher education, teaching strategies in science.