Incorporating a Modified Problem‐Based Learning Exercise in a Traditional Lecture and Lab‐Based Dairy Products Course

Abstract: A modified problem‐based learning (PBL) exercise was implemented in a food science Dairy Products course, which had previously been taught in the traditional lecture and laboratory format only. The first 10 wk of the course consisted of weekly lectures and laboratory exercises. During the remaining 3 wk, students were presented with a case study that described milk quality problems that could be encountered by the dairy industry. Each week, students received a set of case disclosures containing relevant information that assisted in solving the case. Students were asked to present their findings at the end of the course in the form of a written “consultant's report.” In addition, students were given a survey asking for feedback on the PBL exercise, and the usefulness of having the lectures and labs prior to the PBL experience. Eighty percent of the students found that lectures and labs provided them with sufficient background knowledge to understand and solve the PBL case, 70% found that the PBL reinforced course material covered during lecture and labs, 50% responded that PBL helped them develop new ways of reasoning about the subject matter and 65% reported that PBL taught them to think critically. Of the total students surveyed, 56% would prefer to participate in similar types of PBL exercises in the future. Incorporating PBL into traditionally taught food science courses can have a positive influence on the learning process.     

Conflict of Learning Styles: University Science Lectures in the Sultanate of Oman

This article examines the differing learning styles found in western lecturers and Omani students in science lectures in the Sultanate of Oman. Oman is a country which modernized very recently, and students there were encountering western lecturers and lecturing methods for the first time. The western lecturers found the Omani approach to science, which they characterized as memorization deficient and wished to introduce a problem-solving approach. However, it is argued that some memorization occurs in all learning of science everywhere, that the Omani approach has its merits, and that a major problem in these lectures was the lack of knowledge of Omani and Arabic culture in the lecturers. It is argued that all learning takes place by matching new knowledge and methods with previous ones, and that to successfully lecture to the Omani students the lecturers would need to research further into ways in which their approach could have built on, rather than replaced entirely, the Omani approach. The article is based on interviews with the lecturers and extracts from the lectures, which were recorded and transcribed by the writer.     

Learning Experience and Learning Effectiveness in Undergraduate Statistics: Modeling Performance in Traditional and Flexible Learning Environments*

This project investigates the relationship between student performance, past mathematics experience, and perceptions of statistics education for two groups of university students studying statistics in different learning environments. One group received the traditional form of teaching with lectures, whereas the other group studied in a more flexible learning mode where lectures were replaced with a computer‐managed learning tool and optional small‐group workshops facilitated by written lecture notes. The results on student learning experience show that, for both groups, student enjoyment of the course is positively related to their learning attitudes and to their perceived value of statistics education, and is negatively related to anxiety with regard to their performance in the course. There is some evidence that the group studying in the technology‐supported flexible learning environment experienced more assessment anxiety and consequently less enjoyment of the subject. There is also evidence that assessment anxiety has a negative effect on student performance that is exacerbated by a lack of prior mathematics experience. Hence, the flexible learning approach in statistics education, with minimal face‐to‐face teaching, may be especially inappropriate for these students.     

Questioning Reality,Questioning Science: Teaching Students in the Food and Agricultural Sciences about Epistemological,Ethical, and Empirical Controversies

The effective application of food science depends on social constraints, yet the training for food scientists does not adequately consider the contested social context under which food is processed, packaged, and prepared. We recently co‐taught a new course (“Arguing about food”) intended to introduce students to critical perspectives on the epistemological, ethical, and empirical assumptions that characterize contemporary food controversies. Through a series of guest lectures, readings, and discussions, students engaged with contrasting views on data quality, food ethics, nutrition, safety, governance, and the scientific enterprise as a whole. A key feature of the course was that we did not seek to defend any particular position. Rather, we examined how different values could lead reasonable people to take different views on scientific issues. Course requirements included a pass/fail quiz, a series of written reading responses, a group project devoted to a case study, and active attendance and participation. The students were engaged and challenged by the material, and at the end of the semester, reported that the course had also been useful and informative to them as young professionals embarking upon careers in the food and agricultural sciences.     

A case study of peer learning in higher aeronautical education

In order to improve student learning in an advanced course in aeronautics, lectures are replaced with more student-centred sessions based on peer learning. The course is organised in student teams, with the main task of delivering lecture requests for full class discussions. For the same reason, the written theory exam is replaced by a peer review of student reports. The new approach is found to result in a substantial increase of student–student and student–teacher interaction, leading to observable improvements in the course results. Finally, some feedback from the students is presented, being in great favour of the peer learning approach.     

Implementation of Real‐World Experiential Learning in a Food Science Course Using a Food Industry‐Integrated Approach

Success skills have been ranked as the most important core competency for new food science professionals to have by food science graduates and their employers. It is imperative that food science instructors promote active learning in food science courses through experiential learning activities to enhance student success skills such as oral and written communication, critical thinking, problem solving, and team work. The aim of this study was to incorporate “real‐world” experiential learning into a food product development course. Undergraduate students enrolled in a food product development course worked on a semester‐long product development case study developed by the Instructor of the course and the Manager from ACH Food Companies, Inc. The case study was presented to students in the form of a product development competition. Students were placed into groups and given the task to develop a cake mix with specified parameters. At the end of the semester, student groups participated in a case study competition to showcase their product concepts. Each student group gave a PowerPoint presentation and was evaluated using selected criteria. Students rated the course overall as being very good. Students perceived the case study to be beneficial and informative regarding employer (ACH's) expectations. Students recommended that the Instructor minimize restrictions/specifications for product concepts and increase the quantity of course/laboratory meetings per week. This approach will continue to be used and further evaluated as an approach to incorporate active learning and provide food science undergraduates with a sense of employer expectations.     

Student explanations of their science teachers’ assessments,grading practices and how they learn science

The current paper draws on data generated through group interviews with students who were involved in a larger ethnographic research project performed in three science classrooms. The purpose of the study from which this data was generated, was to understand science teachers’ assessment practices in an upper-secondary school in Sweden. During group interviews students were asked about their conceptions of what were the assessment priority of teachers, why the students were silent during lecturing and their experiences regarding peer- and self-assessments. The research design and analysis of the findings derives from what students told us about their assessments and learning sciences experiences. Students related that besides the results of the written test, they do not know what else teachers assessed and used to determine their grades. It was also found that students did not participate in the discussion on science because of peer-pressure and a fear of disappointing their peers. Student silence is also linked with student conceptions of science learning and student experiences with methodologies of teaching and learning sciences.     

Replacing lectures with multimedia CBL: Student attitudes and reactions

The lectures for two modules which together comprise an introductory course on textiles and textile manufacturing comprising some 70 hours of lectures were replaced by computer-based multimedia learning material requiring a similar amount of study time. In a student project the reactions and attitudes of students to taking the computer-based course were elicited through two questionnaires. The results of the student project indicated that the data was worthy of further study, in particular, the responses to the second questionnaire. In this paper these data are analysed in detail. The attitudes and reactions of the students are linked to features of the material and its use, and to possible more general attitudes of the students. Consideration is given to the study behaviour of the students and ways in which the courseware might be improved are proposed.     

Increasing Content Knowledge and Self‐Efficacy of High School Educators through an Online Course in Food Science

Purdue Univ.'s College of Agriculture developed an Advanced Life Sciences (ALS) program in partnership with several high schools across Indiana. As part of ALS, secondary educators take an introductory food science (FS) course (ALS‐Foods) and teach it at their high school. High school students taking the ALS‐Foods receive dual credit for an introductory course required for all FS majors at Purdue. The goal of this project was to develop an online course to improve content knowledge and self‐efficacy of secondary educators in the field of FS. The course was offered over a 3‐wk period and consisted of 3 learning modules focused on food chemistry, food microbiology, and food processing. Modules included class activities, videos, study questions, and teaching tools. Participants were assessed on content knowledge through written assignments, quizzes, and a final examination. Twenty secondary educators from several states were enrolled. Overall, content knowledge increased significantly (P < 0.05) across all 3 modules after completing the course. Highest scores were in food microbiology/safety (84%), followed by food processing (76%) and food chemistry (70%). A precourse survey indicated that the majority (>80%) of participants felt they had “no‐confidence” to “little‐confidence” in teaching FS concepts related to the 3 modules. Upon completing the course, the confidence level of all participants increased to “some‐confidence” or “complete confidence.” By strengthening the knowledge level of secondary educators, they will be better prepared to teach FS and subsequently, more high school students could be exposed to FS and consider it as a career.     

Examining the literacy component of science literacy: 25 years of language arts and science research

This review, written to celebrate the 25th anniversary of the International Journal of Science Education, revealed a period of changes in the theoretical views of the language arts, the perceived roles of language in science education, and the research approaches used to investigate oral and written language in science, science teaching, and learning. The early years were dominated by behavioralist and logico-mathematical interpretations of human learning and by reductionist research approaches, while the later years reflected an applied cognitive science and constructivist interpretations of learning and a wider array of research approaches that recognizes the holistic nature of teaching and learning. The early years focus on coding oral language into categories reflecting source of speech, functional purpose, level of question and response, reading research focused on the readability of textbooks using formulae and the reader's decoding skills, and writing research was not well documented since the advocates for writing in service of learning were grass roots practitioners and many science teachers were using writing as an evaluation technique. The advent of applied cognitive science and the constructivist perspectives ushered in interactive-constructive models of discourse, reading and writing that more clearly revealed the role of language in science and in science teaching and learning. A review of recent research revealed that the quantity and quality of oral interactions were low and unfocused in science classrooms; reading has expanded to consider comprehension strategies, metacognition, sources other than textbooks, and the design of inquiry environments for classrooms; and writing-to-learn science has focused on sequential writing tasks requiring transformation of ideas to enhance science learning. Several promising trends and future research directions flow from the synthesis of this 25-year period of examining the literacy component of science literacy - among them are critical listening and reading of various sources, multi-media presentations and representations, effective debate and argument, quality explanation and the role of information and communication technologies/environments.     

项目式教学体系在食品安全综合实验中的应用

构建基于人才培养目标评价的教学机制是评价和完善大学本科教育的重要举措。食品安全是食品工程的基本要求,也是食品科学的重要研究方向。"食品安全学"课程体系建设是食品科学与工程专业工程教育体系的重要内容。通过食品安全综合实验教学内容与教学方式的改革探索与实践经验,创建了"食品安全学"课程的项目式教学体系。"食品安全学"课程建设显著提高了教学质量,实现了学生从被动学习向主动学习的转变,取得了理想的教学效果,对于综合实验具有较好的示范作用。     

Developing Food Science Core Competencies in Vietnam: The Role of Experience and Problem Solving in an Industry‐Based Undergraduate Research Course

Although many educators now recognize the value of problem‐based learning and experiential learning, undergraduate‐level food science courses that reflect these pedagogical approaches are still relatively novel, especially in East and Southeast Asia. Leveraging existing partnerships with farmers in Vietnam, a food science course for students at Nong Lam Univ. was designed and taught. The aim was to give students the opportunity to work in small groups and conduct evidence‐based research with farmers, apply food science principles, and develop Success Skills, including the ability to think critically and communicate clearly. Drawing on the experience of 2 student groups, this exploratory study describes what students learned from the process of conducting research. In one group, students learned to work through and resolve the challenge of initial disagreement and misunderstanding with farmers and ultimately carried out a project that aligned with the students’ research interests and farmers’ needs. Another group of students learned to consider the financial limitations of farmers when attempting to develop solutions for problems and ultimately worked with farmers to address a different problem that was less financially taxing. It is important to note the challenges of planning and teaching a course in which instructors are not able to predict exactly what students will learn or experience. This is largely dependent on each student's prior knowledge, experiences, and interests; yet this study demonstrates the transformative potential of teaching a research‐based food science course that gives students authentic opportunities to identify and address real‐world challenges.     

Teaching for quality learning in chemistry

In Portugal, the number of students in higher education increased from 80,000 in 1975 to 381,000 in 2000 (a change from 11% to 53% in the age group 18–22), meaning a major change in the diversity of student population with consequences well known and studied in other countries. The teaching of chemistry at the University of Aveiro, for the first‐year students of science and engineering, has been subjected to continuous attention to implement quality and student‐centred approaches. The work devoted to excellence and deep learning by several authors has been carefully followed and considered. This communication reports research work on chemistry teaching, associated with those developments for first‐year students. The work included the design of strategies and the adoption of teaching and learning activities exploring ways to stimulate active learning by improving the quality of classroom interactions. In addition to regular lectures, large classes' teaching based on student‐generated questions was explored. In order to improve students' motivation and stimulate their curiosity, conference‐lectures were adopted to deal with selected topics of wide scientific, technological and social interest. Quantitative analysis and discussion of selected case studies, together with the organization of laboratory classes based on selected enquiry‐based experiments, planned and executed by students, stimulated deep learning processes. A sample of 32 students was followed in the academic year of 2000/01 and the results obtained are here discussed in comparison with those of a sample of 100 students followed in 2001/02. Particular attention was paid to the quality of classroom interactions, the use of questions by students and their views about the course design.     

NINTER - Networked Interaction: Theory-Based Cases in Teaching and Learning

This article describes the pedagogical framework of an interdisciplinary and international project entitled NINTER (Networked Interaction: Theory-Based Cases in Teaching and Learning). The practical aim of the project is to produce a pedagogical model for learning and teaching in networked environments. The research project has its foundation on socio-constructivist learning theories, with one of the most important principles being the idea of apprenticeship in thinking. The article also takes a look at the first results obtained from different kinds of videotaped and written material that were collected during a WWW-based university course. Also questions raised from the data for future research are considered.     

Promoting academic writing/referencing skills: Outcome of an undergraduate e-learning pilot project

Future health care professionals will require self‐directed learning skills. e‐Learning is a tool to assist in this process and therefore there is a need to develop the capacity and readiness to utilise e‐learning within educational programmes. The aim of this study was to determine if extra‐curricular online referencing and anti‐plagiarism lectures would be utilised and would ultimately improve 1st‐year undergraduate health sciences students’ performance in written assessments. A series of six online archived multimedia lectures (asynchronous) were offered. Adult learning theory principles guided the resource design. Pre‐ and post‐testing of knowledge, attitudes and computer skills was carried out. In‐person tutorials and online email support were also offered. Less than 36% (self‐report) of students accessed the online resources. The poor uptake revealed in this study is consistent with a number of other studies. These findings indicate the need for more careful scrutiny of the learning theory applied in e‐learning design. Prochaska's transtheoretical model is suggested as a framework with strong potential for e‐learning initiatives.     

Taking an Attention‐Grabbing “Headlines First!” Approach to Engage Students in a Lecture Setting

Let's face it. Traditional lectures do not consistently capture our students’ attention, especially when they are PowerPoint‐driven and lack student/instructor interaction. Most of us have had the unfortunate feeling that our students were not fully engaged in our lectures, despite hours of preparation on our part. This sense of “wasted” investment of time can be especially frustrating for pretenure faculty, who must balance teaching, research, extension and administrative (as well as personal) responsibilities in order to be successful. How can we engage students in our course content, given limited time and resources to prepare lecture material and demonstrations? Active learning strategies are a possibility, but shifting courses from a lecture format to problem‐based learning or a flipped format requires a significant time and effort investment from the instructor. Why not start by making lecture more fun and engaging for our students? Storytelling is an effective and efficient means of getting and maintaining our students’ attention and interest during lecture to drive home key points. The BSCS (Biological Sciences Curriculum Study) 5E Instructional Model provides a conceptual framework that emphasizes the primacy of student engagement in science education (Bybee). Our goal here is to provide practical examples and external references to show how “Headlines First!” storytelling can be used effectively to engage students in the science classroom.     

Project‐Based Learning Involving Sensory Panelists Improves Student Learning Outcomes

Project‐based, collaborative learning is an effective teaching method when compared to traditional cognitive learning. The purpose of this study was to assess student learning after the completion of a final meal project that involved a group of sensory panelists. A paper survey was conducted among 73 senior nutrition and dietetics students enrolling in Experimental Food Science, Spring 2013 and 2014. The survey comprised of qualitative and quantitative questions about students’ perceived learning outcomes. The project required students to prepare a 4‐course meal in 90 min, in groups of 4. Eighteen sensory panelists consisting of faculty and graduate students from the Nutrition, Dietetics, and Hospitality Management Department and administrative staff from the college evaluated the foods, asked students several food science‐related questions, and completed a survey about their involvement in the project. Students reported that this project reinforced class material (4.7 ± 0.6), and was enjoyable (4.6 ± 0.6) yet challenging (4.4 ± 0.7); numerous skills were developed, including team‐building (4.7 ± 0.5), food preparation (4.6 ± 0.5), and time management (4.4 ± 0.5). Students perceived that the involvement of sensory panelists was beneficial in terms of providing constructive feedback for improvement and motivating them to prepare high‐quality foods. It also prepared them for serving foods to individuals from different cultural backgrounds. However, some students found the experience stressful. For the sensory panelists, the project helped them to venture out of their areas of expertise. In conclusion, a meal project involving sensory panelists can result in positive learning outcomes.     

Science Teacher Efficacy and Extrinsic Factors Toward Professional Development Using Video Games in a Design-Based Research Model: The Next Generation of STEM Learning

Designed-based research principles guided the study of 51 secondary-science teachers in the second year of a 3-year professional development project. The project entailed the creation of student-centered, inquiry-based, science, video games. A professional development model appropriate for infusing innovative technologies into standards-based curricula was employed to determine how science teacher’s attitudes and efficacy where impacted while designing science-based video games. The study’s mixed-method design ascertained teacher efficacy on five factors (General computer use, Science Learning, Inquiry Teaching and Learning, Synchronous chat/text, and Playing Video Games) related to technology and gaming using a web-based survey). Qualitative data in the form of online blog posts was gathered during the project to assist in the triangulation and assessment of teacher efficacy. Data analyses consisted of an Analysis of Variance and serial coding of teacher reflective responses. Results indicated participants who used computers daily have higher efficacy while using inquiry-based teaching methods and science teaching and learning. Additional emergent findings revealed possible motivating factors for efficacy. This professional development project was focused on inquiry as a pedagogical strategy, standard-based science learning as means to develop content knowledge, and creating video games as technological knowledge. The project was consistent with the Technological Pedagogical Content Knowledge (TPCK) framework where overlapping circles of the three components indicates development of an integrated understanding of the suggested relationships. Findings provide suggestions for development of standards-based science education software, its integration into the curriculum and, strategies for implementing technology into teaching practices.