Spatial ability and achievement in introductory physics

This research was undertaken to clarify the nature of the relationship between visual-spatial abilities and achievement in science courses. A related purpose was to determine what influence visual-spatial abilities have on the high attribution rate characteristic of many introductory college-level science courses. Three sections of introductory college level physics (S = 136) and one nonscience liberal arts section (S = 52) received pre- and postmeasures of visual-spatial ability in the areas of perception, orientation, and visualization. Increases in visual-spatial abilities were greatest with an experimental section that received a spatial intervention. These gains were related to test items that utilized graphical form and to laboratory work. Substantial gains in visual-spatial ability were also registered by a placebo and by control sections. These increases suggest that taking introductory physics improves visual-spatial abilities. Although students who withdrew from the course demonstrated mathematics skills comparable to those of students who completed the course, their scores on perception tests were appreciably lower. Visual-spatial scores of the liberal arts group were lower than those of the physics sections, suggesting that visual-spatial ability influences course selection.     

Learning to learn at university. The effects of an instrumental subject on learning strategies and academic achievement / Aprender a aprender en la universidad. Efectos de una materia instrumental sobre las estrategias de aprendizaje y el rendimiento académico

Self-regulated learning is very important at university, since students must manage the strategies and abilities necessary to be autonomous and effective in their learning. The aim of this study was to analyse the effects of a course designed for this purpose on learning strategies and students’ achievement of first-year university students. A quasi-experimental pre-test/post-test design was used, with an experimental group and a control group, applying measurement instruments before starting and after finishing the course. The learning process was analysed on this course, with students being trained in the use of relevant learning strategies — metacognitive strategies, strategies for processing and using information and affective and motivational strategies. The sample consisted of 47 students, 23 of them belonging to the experimental group and 24 of them to the control group, from various degrees at the University of Valencia. The results confirmed significant improvements in the learning strategy scores of the experimental group compared to the control group. There was also an improvement in academic achievement, but in this case the differences were not statistically significant.     

Formative Assessment Pre-Test to Identify College Students’ Prior Knowledge, Misconceptions and Learning Difficulties in Biology

A formative assessment pretest was administered to undergraduate students at the beginning of a science course in order to find out their prior knowledge, misconceptions and learning difficulties on the topic of the human respiratory system and energy issues. Those findings could provide their instructors with the valuable information required in order to adapt their teaching methods to the students’ needs. The test included open-ended questions and was administered on the first day of the course. The data obtained were analysed in relation to the students’ gender, age and having attended or not attended advanced courses in biology at the high-school level. Students could have prior knowledge on a topic to be learned, which, if identified and accounted for in the teaching, could serve as a receptor for a constructivist mode of study. The results indicated that undergraduate students hold misconceptions which could obstruct the acquisition of new knowledge. They encounter learning difficulties, which, if are known to the instructors and addressed in their teaching, could facilitate students’ learning. The possible use of a formative pre-assessment procedure, which could guide the instruction and learning process from the beginning of a course, is discussed.     

Effect of visual-spatial ability on medical students' performance in a gross anatomy course

The ability to mentally manipulate objects in three dimensions is essential to the practice of many clinical medical specialties. The relationship between this type of visual-spatial ability and performance in preclinical courses such as medical gross anatomy is poorly understood. This study determined if visual-spatial ability is associated with performance on practical examinations, and if students' visual-spatial ability improves during medical gross anatomy. Three hundred and fifty-two first-year medical students completed the Mental Rotations Test (MRT) before the gross anatomy course and 255 at its completion in 2008 and 2009. Hypotheses were tested using logistic regression analysis and Student's t-test. Compared with students in the lowest quartile of the MRT, students who scored in the highest quartile of the MRT were 2.2 [95% confidence interval (CI) 1.2 and 3.8] and 2.1 (95% CI 1.2 and 3.5) times more likely to score greater than 90% on practical examinations and on both practical and written examinations, respectively. MRT scores for males and females increased significantly (P < 0.0001). Measurement of students' pre-existing visual-spatial ability is predictive of performance in medical gross anatomy, and early intervention may be useful for students with low visual-spatial ability on entry to medical school. Participation in medical gross anatomy increases students' visual-spatial ability, although the mechanism for this phenomenon is unknown.     

Peer Learning and Support of Technology in an Undergraduate Biology Course to Enhance Deep Learning

This study offers an innovative and sustainable instructional model for an introductory undergraduate course. The model was gradually implemented during 3 yr in a research university in a large-lecture biology course that enrolled biology majors and nonmajors. It gives priority to sources not used enough to enhance active learning in higher education: technology and the students themselves. Most of the lectures were replaced with continuous individual learning and 1-mo group learning of one topic, both supported by an interactive online tutorial. Assessment included open-ended complex questions requiring higher-order thinking skills that were added to the traditional multiple-choice (MC) exam. Analysis of students’ outcomes indicates no significant difference among the three intervention versions in the MC questions of the exam, while students who took part in active-learning groups at the advanced version of the model had significantly higher scores in the more demanding open-ended questions compared with their counterparts. We believe that social-constructivist learning of one topic during 1 mo has significantly contributed to student deep learning across topics. It developed a biological discourse, which is more typical to advanced stages of learning biology, and changed the image of instructors from “knowledge transmitters” to “role model scientists.”     

Selected factors associated with achievement of biology preparatory students and their follow-up to higher level biology courses

This study was undertaken to determine whether a biology preparatory course given at an urban community college was helping students to develop the proper skills and background necessary for them to successfully complete follow-up courses in biology. A group of students who enrolled in a biology preparatory course, and subsequently, a follow-up anatomy and physiology or general biology course (experimental group) was compared to a group of students who should have registered for the preparatory course, but who enrolled directly into the anatomy and physiology or general biology course (control group). It was shown that there was no significant difference in their anatomy and physiology or general biology grades. Furthermore, only 16% of the initial group of preparatory students enrolled in and passed a follow-up biology course. Examination of the preparatory group using discriminant analysis ascertained that mathematics score was the principle discriminator between pass/fail groups. A stepwise multiple regression analysis of the variables explaining the preparatory grade showed that mathematics score, reading score, and type of high school degree explained 33% of the variance. Of the students who did pass the preparatory course and enrolled in a follow-up biology class, their preparatory grade was a good predictor of their achievement (measured by follow-up course grade), as determined by multiple regression.     

The effects of concept and vee mappings under three learning modes on Jamaican eighth graders’ knowledge of nutrition and plant reproduction

The first objective of this study was to investigate if the experimental students’ post‐test knowledge of nutrition and plant reproduction would be improved more significantly than that of their control group counterparts based on their treatment, attitudes to science, self‐esteem, gender and socio‐economic background. Treatment involved teaching the experimental students under three learning modes—pure cooperative, cooperative–competitive and individualistic whole class interpersonal competitive condition—using concept and vee mappings and the lecture method. The control groups received the same treatment but were not exposed to concept and vee mappings. This study’s second objective was to determine which of the three learning modes would produce the highest post‐test mean gain in the subjects’ knowledge of the two biology concepts. The study’s sample comprised 932 eighth graders (12–13‐year‐olds) in 14 co‐educational comprehensive high schools randomly selected from two Jamaican parishes. An integrated science performance test, an attitudes to science questionnaire and a self‐esteem questionnaire were used to collect data. The results indicated that the experimental students (a) under the three learning modes, (b) with high, moderate, and low attitudes to science, and (c) with high, moderate, and low self‐esteem, performed significantly better than their control group counterparts. The individualist whole class learning mode engendered the highest mean gain on the experimental students’ knowledge, while the cooperative–competitive learning mode generated the highest mean gain for the control group students.     

Students’ Views on Difficulties in Learning Histology

The aim of this study was to provide a better understanding of the main difficulties hindering undergraduate biology students in learning histology. The study utilized a self-administered questionnaire which included three closed-ended and two open-ended questions: (1) if students had difficulty in learning about each tissue type; (2) what might be the problem in learning about the tissue at hand; (3) which topics were the most difficult; (4) what were the possible reasons that made image identification of tissue types difficult; and (5) how to improve the course curriculum from a student perspective. The survey was administered to 139 undergraduate biology students enrolled in a histology course, of which 101 surveys were completed and analyzed both qualitatively and quantitatively. The topics that students experienced the most difficulties with were: nervous tissue, plant tissues, bone tissues, and glandular epithelial tissue. The main reasons students experienced difficulties with these tissue types, according to the students themselves, were the nature of the topic, grasping the terminology used, and insufficient teaching time. Students suggested the adoption of strategies such as: teaching based on practical tasks; reducing the content of the histology curriculum; adding anatomy subjects; and making histology education more interesting.     

Visual Instruction to Enhance Teaching of Technical Subject to Design Students

Visual instruction complementing verbal lectures is known to promote learning among students. In this study, the role of visual instruction in engaging learners effectively via the simplification of technical concepts was examined. Different aspects of visualisation, such as order of presenting and dimensionality, were tested to observe their effect on students’ approach to learning and learning outcomes. In this mixed‐method quasi‐non‐experimental explanatory study, visual instruction was applied in one of the undergraduate architecture modules that teaches fundamentals of building systems, which students often find difficult to comprehend. Three key variables, including spatial cognitive ability, approach to learning and learning outcomes, were measured using statistically valid instruments along with students’ feedback and interviews. These factors were also measured for the control group that did not receive visual instruction (n = 32), to assess the effect of the intervention. When taught with visualisation, students (n = 69), showed a significant increase in deep approach to learning (e.g., deep motive: t = 2.584, p = 0.011). In interviews, students expressed a deeper interest in the subject and reported that the topic was engaging in class. Visualisation favours students with a higher spatial ability and, thus, is useful for design students who receive spatial ability training in the course. Two‐dimensional visuals must be followed and preceded by three‐dimensional visuals to provide advanced organisation and the connection of new knowledge with known organisational models to be made.     

Learning Microbiology with Computer Simulations: students’ academic achievement by method and gender

Tenth grade students studied the topic of ‘The growth curve of microorganisms’, which included a computer‐assisted learning (CAL) simulation episode. The CAL episode enabled students to simulate experiments which investigated the simultaneous impact of three independent variables upon the growth curve of microorganisms (temperature, nutrient concentration and the initial number of individuals from which to start a population growth). Two classes (n = 82 students) formed the experimental group and were instructed in a combination of classroom‐laboratory work with CAL. The control group included three classes (n = 99 students) who were taught the topic in the classroom‐laboratory work setting only. Five teachers taught the five classes, three periods weekly and the study lasted 4 weeks. The students’ previous knowledge in the topic to be learned and their academic achievement were assessed with pre‐ and post‐tests, respectively. The data for each lest were treated with a two‐way analysis of variance. The results showed that the two study groups did not differ in their previous knowledge and no significant differences were found by gender within and between the groups. The post‐test results on academic achievement indicated that students in the experimental group achieved significantly higher means scores than the control group. No significant gender differences on academic achievement were found within each group. The results affirm that: (a) computer simulations, in which three variables are manipulated simultaneously in one experiment, can be integrated as short episodes in the existing biology curricula; (b) high school students can perform computer simulations which require the skills of simultaneous manipulations of three variables in one experiment, problem solving and decision making; (c) girls and boys in the experimental group exhibited these skills at a similar academic level of achievement.     

大学生是如何协作探究的——大学通识课程研究性学习的叙事研究

本文采用叙事研究的方法,对中山大学通识课程现代学习理论与技术中的小组研究性学习进行了参与式研究。在对四个学生小组的深入观察、调查、访谈与分析的基础上,本研究发现了大学生研究性学习过程中存在的常见困难与问题,如开展研究性学习的积极性不高,选题和定题时面临困难,缺少真正意义上的交流协作,研究缺乏深度等;继而,研究对导致上述现象的原因如传统学习方式、社团活动、课外阅读量、课程性质、小组构成、课程设计等进行了分析,并提出了应加强教师指导、抓住选题和定题的关键阶段和改善课程各项设计等建议。希望本研究对大学生的研究性学习具有一定的启示和借鉴意义。     

High-School Chemistry Students' Performance and Gender Differences in a Computerized Molecular Modeling Learning Environment

Computerized molecular modeling (CMM) contributes to the development of visualization skills via vivid animation of three dimensional representations. Its power to illustrate and explore phenomena in chemistry teaching stems from the convenience and simplicity of building molecules of any size and color in a number of presentation styles. A new CMM-based learning environment for teaching and learning chemistry in Israeli high schools has been designed and implemented. Three tenth grade experimental classes used this discovery CMM approach, while two other classes, who studied the same topic in the customary approach, served as a control group. We investigated the effects of using molecular modeling on students' spatial ability, understanding of new concepts related to geometric and symbolic representations and students' perception of the model concept. Each variable was examined for gender differences. Students of the experimental group performed better than control group students in all three performance aspects. Experimental group students scored higher than the control group students in the achievement test on structure and bonding. Students' spatial ability improved in both groups, but students from the experimental group scored higher. For the average students in the two groups the improvement in all three spatial ability sub-tests —paper folding, card rotation, and cube comparison—was significantly higher for the experimental group. Experimental group students gained better insight into the model concept than the control group and could explain more phenomena with the aid of a variety of models. Hence, CMM helps in particular to improve the examined cognitive aspects of the average student population. In most of the achievement and spatial ability tests no significant differences between the genders were found, but in some aspects of model perception and verbal argumentation differences still exist. Experimental group females improved their model perception more than the control group females in understanding ways to create models and in the role of models as mental structures and prediction tools. Teachers' and students' feedback on the CMM learning environment was found to be positive, as it helped them understand concepts in molecular geometry and bonding. The results of this study suggest that teaching/learning of topics in chemistry that are related to three dimensional structures can be improved by using a discovery approach in a computerized learning environment.     

The impact of using mobile-supported learning management systems in teaching web design on the academic success of students and their opinions on the course

This research aimed to examine the impact of using mobile-supported learning management systems (LMS) in teaching web design on the academic success of students and their opinion on the course; and it was conducted on 70 volunteer students (35 experimental, 35 control) enrolled at Giresun University, Technical Sciences Vocational School, Computer Technologies Department, Program of Computer Programming in Spring 2015–2016. After the eight weeks long implementation of Mobile Moodle, which is a mobile-supported LMS, as a supplement to traditional learning methods; t-test was used in order to determine whether the methodology mentioned had a significant impact on the academic success of web design teaching. As a result of the t-test implemented; it was seen that there was a significant level of difference in favor of the experimental group; between the academic success of students in the experimental group where mobile-supported LMS is used and the academic success of the students in the control group where traditional learning methodologies are used. Also, it has been determined that using Mobile LMS has increased the students’ interest.     

健美操课程中的皮格马利翁效应实验研究

运用文献资料法、问卷调查法、实验法和数理统计法,在对福建师范大学福清分校体育科学系2011级健美操选修课两个班级实行不同的教学方式中,除按照教学大纲进行正常教学外,还对实验组学生施加了适当的教师期待因素.得出结果,在运用皮格马利翁效应后,实验组的考核成绩平均分提高了5.92%,高于对照组的2.01%,有较显著性差异.说明合理的利用皮格马利翁效应有利于营造良好的学习氛围、增强学生的自信心,能激发学生在健美操方面的潜能,使其成绩有较大幅度的提高,对健美操教学效果的提高有积极的促进作用.     

A Combination of Hand-held Models and Computer Imaging Programs Helps Students Answer Oral Questions about Molecular Structure and Function: A Controlled Investigation of Student Learning

We conducted a controlled investigation to examine whether a combination of computer imagery and tactile tools helps introductory cell biology laboratory undergraduate students better learn about protein structure/function relationships as compared with computer imagery alone. In all five laboratory sections, students used the molecular imaging program, Protein Explorer (PE). In the three experimental sections, three-dimensional physical models were made available to the students, in addition to PE. Student learning was assessed via oral and written research summaries and videotaped interviews. Differences between the experimental and control group students were not found in our typical course assessments such as research papers, but rather were revealed during one-on-one interviews with students at the end of the semester. A subset of students in the experimental group produced superior answers to some higher-order interview questions as compared with students in the control group. During the interview, students in both groups preferred to use either the hand-held models alone or in combination with the PE imaging program. Students typically did not use any tools when answering knowledge (lower-level thinking) questions, but when challenged with higher-level thinking questions, students in both the control and experimental groups elected to use the models.     

The Effectiveness of Concept Maps in Teaching Physics Concepts Applied to Engineering Education: Experimental Comparison of the Amount of Learning Achieved With and Without Concept Maps

A study was conducted to quantify the effectiveness of concept maps in learning physics in engineering degrees. The following research question was posed: What was the difference in learning results from the use of concept maps to study a particular topic in an engineering course? The study design was quasi-experimental and used a post-test as a measuring instrument. The sample included 114 university students from the School of Industrial Engineering who were divided into two equivalent homogeneous groups of 57 students each. The amount of learning attained by the students in each group was compared, with the independent variable being the teaching method; the experimental group (E.G.) used concept maps, while the control group (C.G.) did not. We performed a crossover study with the two groups of students, with one group acting as the E.G. for the topic of optical fibers and as the C.G. for the topic of the fundamental particles of matter and vice versa for the other group. For each of the two topics studied, the evaluation instrument was a test of 100 dichotomous items. The resulting data were subjected to a comparative statistical analysis, which revealed a significant difference in the amount of learning attained by the E.G. students as compared with the C.G. students. The results allow us to state that for the use of concept maps, the average increment in the E.G. students’ learning was greater than 19 percentage points.     

A comparison between traditional and constructivist teaching in college biology

Two large sections of introductory biology for nonmajors were given the same course information with two different teaching styles. One group (N=86) was presented material in the traditional teacher-centered manner of lecture and laboratory while course information was given to the second group (N=98) in the student-centered, constructivist format. Learning was assessed in both groups with the same evaluative instruments and the results compared. This analysis revealed that the experimental (constructivist taught) population did significantly better than the control (traditionally taught) population. Furthermore, the students in the experimental group maintained a better attitude throughout the semester and enjoyed the introductory course more than the students in the control population.     

Generating connections and learning with SemNet,a tool for constructing knowledge networks

In this paper we examine the impact of using a Macintosh-based knowledge organization toll SemNet, with prospective elementary and middle school teachers enrolled in an upper division biology course. The course models for students the ways in which they will be able to teach hands-on, minds-on science in K-8 classrooms and provides them with an in-depth understanding of a relatively small number of biology topics. This study examines changes in learning habits, metacognitive processes, retention, retrieval, and learring among students enrolled in this course. Students using SemNet tend to exhibit a significant increase in deep processing as measured by self-report. Also on the basis of self-report, SemNet students appear to acquire some cognitive skills that transfer to other courses, such as identifying main ideas and tying ideas together. SemNet students retained and retrieved nearly twice as much information about a topic, the digestive system, as a reference group. Although neither the SemNet nor the reference group exhibited transfer skills as we meansured them, there is evidence that SemNet student changed their thinking strategies.     

Teaching statistics in biology: using inquiry-based learning to strengthen understanding of statistical analysis in biology laboratory courses

There is an increasing need for students in the biological sciences to build a strong foundation in quantitative approaches to data analyses. Although most science, engineering, and math field majors are required to take at least one statistics course, statistical analysis is poorly integrated into undergraduate biology course work, particularly at the lower-division level. Elements of statistics were incorporated into an introductory biology course, including a review of statistics concepts and opportunity for students to perform statistical analysis in a biological context. Learning gains were measured with an 11-item statistics learning survey instrument developed for the course. Students showed a statistically significant 25% (p < 0.005) increase in statistics knowledge after completing introductory biology. Students improved their scores on the survey after completing introductory biology, even if they had previously completed an introductory statistics course (9%, improvement p < 0.005). Students retested 1 yr after completing introductory biology showed no loss of their statistics knowledge as measured by this instrument, suggesting that the use of statistics in biology course work may aid long-term retention of statistics knowledge. No statistically significant differences in learning were detected between male and female students in the study.     

A novel three-dimensional tool for teaching human neuroanatomy

Three‐dimensional (3D) visualization of neuroanatomy can be challenging for medical students. This knowledge is essential in order for students to correlate cross‐sectional neuroanatomy and whole brain specimens within neuroscience curricula and to interpret clinical and radiological information as clinicians or researchers. This study implemented and evaluated a new tool for teaching 3D neuroanatomy to first‐year medical students at Boston University School of Medicine. Students were randomized into experimental and control classrooms. All students were taught neuroanatomy according to traditional 2D methods. Then, during laboratory review, the experimental group constructed 3D color‐coded physical models of the periventricular structures, while the control group re‐examined 2D brain cross‐sections. At the end of the course, 2D and 3D spatial relationships of the brain and preferred learning styles were assessed in both groups. The overall quiz scores for the experimental group were significantly higher than the control group (t(85) = 2.02, P < 0.05). However, when the questions were divided into those requiring either 2D or 3D visualization, only the scores for the 3D questions were significantly higher in the experimental group (F_1,85= 5.48, P = 0.02). When surveyed, 84% of students recommended repeating the 3D activity for future laboratories, and this preference was equally distributed across preferred learning styles (χ² = 0.14, n.s.). Our results suggest that our 3D physical modeling activity is an effective method for teaching spatial relationships of brain anatomy and will better prepare students for visualization of 3D neuroanatomy, a skill essential for higher education in neuroscience, neurology, and neurosurgery. Anat Sci Educ. © 2010 American Association of Anatomists.