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1.
Yaohua Feng Christine M. Bruhn Gary Elder Dawn Boyden 《Journal of Food Science Education》2019,18(2):45-51
High school students are a critical audience for food safety. Students may enter the foodservice industry or become primary meal preparers for their families. The positive deviance food safety curriculum was developed based on the messages from the Fight BAC! Campaign. The curriculum is designed for high school students to overcome barriers to safe food handling practices. This study evaluated the effectiveness of the positive deviance approach to change food safety knowledge and behaviors among high school students. Students (n = 218) from two high schools participated in this study. The positive deviance method uses group discussions lead by the teacher who reinforces and praises behaviors, which reflect recommended food handling practices. Measurements included pre‐ and postsurveys, preobservations and postobservation cooking classes, take‐home tasks, and in‐class activities. Results indicated that the curriculum significantly increased students’ food safety knowledge. Specifically, the percentage of students believing that color was a good indicator of meat doneness dropped from 52% to 17% after exposure to the curriculum. When observed, the students’ compliance with recommended behaviors increased. Prior to instruction, most ground beef burgers students cooked did not reach 160°F, while after the intervention, almost all of the burgers reached 160°F or higher. The curriculum will benefit from a revision that emphasizes areas such as how to use, calibrate, and to clean food thermometers. 相似文献
2.
STS教育体现了高中化学新课程改革全面提升学生科学素养的教育理念,重视科学、技术与社会相互联系,有助于学生正确地分析、解决化学问题.鲁科版高中化学教科书注重在人类生活背景下建构化学知识,选取了丰富的STS教育内容,其组织和呈现方式特点为：利用教材的章节标题呈现;利用教材栏目体系呈现;STS内容与元素化合物知识相互融合渗透. 相似文献
3.
Jana A. Hovland Virginia G. Carraway‐Stage Artenida Cela Caitlin Collins Sebastián R. Díaz Angelo Collins Melani W. Duffrin 《Journal of Food Science Education》2013,12(4):81-86
Health professionals and policymakers are asking educators to place more emphasis on food and nutrition education. Integrating these topics into science curricula using hand‐on, food‐based activities may strengthen students’ understanding of science concepts. The Food, Math, and Science Teaching Enhancement Resource (FoodMASTER) Initiative is a compilation of programs aimed at using food as a tool to teach mathematics and science. Previous studies have shown that students experiencing the FoodMASTER curriculum were very excited about the activities, became increasingly interested in the subject matter of food, and were able to conduct scientific observations. The purpose of this study was to: (1) assess 4th graders food‐related multidisciplinary science knowledge, and (2) compare gains in food‐related science knowledge after implementation of an integrated, food‐based curriculum. During the 2009–2010 school year, FoodMASTER researchers implemented a hands‐on, food‐based intermediate curriculum in eighteen 4th grade classrooms in Ohio (n = 9) and North Carolina (n = 9). Sixteen classrooms in Ohio (n = 8) and North Carolina (n = 8), following their standard science curricula, served as comparison classrooms. Students completed a researcher‐developed science knowledge exam, consisting of 13 multiple‐choice questions administered pre‐ and post‐test. Only subjects with pre‐ and post‐test scores were entered into the sample (Intervention n = 343; Control n = 237). No significant differences were observed between groups at pre‐test. At post‐test, the intervention group scored (9.95 ± 2.00) significantly higher (p = 0.000) than the control group (8.84 ± 2.37) on a 13‐point scale. These findings suggest the FoodMASTER intermediate curriculum is more effective than a standard science curriculum in increasing students’ multidisciplinary science knowledge related to food. 相似文献
4.
《普通高中化学课程标准》的颁布,标志着我国高中化学课程改革进入了一个崭新的时代．化学实验是化学科学的重要基础,中学化学实验在高中生认识和研究化学科学中有着十分重要的意义．新课程高中化学实验课应成为学生获取科学知识和实验技能的重要手段,培养和提高学生非智力品质的重要过程和培养学生创新能力的重要渠道． 相似文献
5.
Suzanne Rice Kipton D. Smilie 《Educational Studies A Journal of the American Educational Studies Association》2014,50(3):231-245
This article examines the emergence and persistence of curriculum differentiation in the comprehensive high school. We argue that curriculum differentiation has roots in Plato's Republic, where it is proposed that education (and later work, especially the work of ruling) should be distributed on the basis of ability. The concept of ideology is used here to help explain why the practice of curriculum differentiation has remained a defining—and largely unchallenged—characteristic of the comprehensive high school. The persistence of curriculum differentiation matters because it is a means by which different groups of students are given access to different kinds of knowledge. Not all knowledge is equally valued, and access to certain kinds of this educational good has implications for young persons’ well-being that extend well beyond their formal schooling. 相似文献
6.
Adapted primary literature (APL) refers to an educational genre specifically designed to enable the use of research articles for learning biology in high school. The present investigation focuses on the paedagogical content knowledge (PCK) of four high‐school biology teachers who enacted an APL‐based curriculum in biotechnology. Using a constructivist qualitative research approach, we analysed those teachers' aims and beliefs, the instructional strategies they used during the enactment of the curriculum, as well as the outcomes of the enactment as perceived by the teachers and their students, and as reflected in the class observations. Some of the teachers' strategies applied during the enactment, such as the conversational model, were specifically designed for teaching APL‐based curricula. We found that the instructional strategies applied for the adapted articles were associated with cognitive and affective engagement, active learning, inquiry thinking, and understanding of the nature of science. Suitable teacher PCK promoted learning by inquiry in addition to learning on inquiry. Students' challenges were mainly linked to the comprehension of complex, multi‐stage, biotechnological processes and methods that are abundant throughout the curriculum and required the use of previous knowledge in new contexts. A complex interaction of factors, namely teachers' PCK, the APL genre, and the biotechnology content of the curriculum, shaped the instructional strategies of the new curriculum and the outcomes of its enactment 相似文献
7.
Yu-Hung Chien Po-Ying Chu 《International Journal of Science and Mathematics Education》2018,16(6):1047-1064
To enable high school students, especially those interested in art and design-related careers, to improve their ability to integrate knowledge of science, technology, engineering, and mathematics (STEM) in their creative design practices and to be familiar with auto manufacturing, the development of a bridging curriculum, known as STEAM (science, technology, engineering, arts, and mathematics) using digital tools such as 3D printers, has been increasingly recognized as emergent and vital. As a bridging curriculum, it is essential to examine the curriculum with respect to high school and college students to highlight the differences in their knowledge and skills for improving curriculum development. Hence, we conducted a teaching experiment using a CO2-car engineering design curriculum in this study to analyze the learning outcomes of four groups of students (three 3D-printing groups: 108 high school students, 12 design college students, and 12 engineering college students; one handmade group: 36 high school students) to assess their competencies. The results of the present study highlight significant differences in creativity, forecast accuracy, race outcomes, and learning outcomes. Suggestions based on the results were generated to improve the curriculum. The findings in this study serve as a reference for the future design, development, and implementation of STEAM curricula. 相似文献
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9.
Andrea M. Liceaga Tameshia S. Ballard Levon T. Esters 《Journal of Food Science Education》2014,13(2):28-32
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. 相似文献
10.
杨广军 《安徽教育学院学报》2006,24(5):125-128
基础教育改革中自然科学课程的设立呼唤高素质的科学教师,高师培养中学理科分科教师的一贯模式必须要打破,自然科学专业的设立或理、化、生分科院系互选课程是高师培养科学教师的两条可行路径。 相似文献
11.
This article reports the development and application of two instruments for assessing science teachers’ pedagogical knowledge in the context of teaching higher‐order thinking: a Likert‐type research instrument, and an instrument that analyzes classroom observations. The rationale for developing these instruments and their main categories is described. One hundred and fifty Israeli science teachers replied to the Likert‐type questionnaire. Results show that biology teachers gained a significantly higher score than either physics or chemistry teachers, that junior high school teachers scored significantly higher than high school teachers, and that a significant negative correlation was found between final scores and teaching experience. Participants in the classroom observation study were 14 teachers who attended a one‐year professional development course for teaching higher‐order thinking. The instrument was sensitive in detecting progress in teachers’ pedagogical knowledge in several categories, such as: Frequency of tasks that required higher‐order thinking; The variety of thinking strategies that teachers addressed during their lessons; Engagement of students in metacognitive thinking; and Using the “language of thinking” in class. The implications of the findings for research and practice are described. 相似文献
12.
南非高中课程改革是南非新政府在教育领域推行的一项重大改革举措。南非新政府以人人都应该接受教育为目标,努力保障高中学生公平接受高等教育的权利,加快高中教育从知识学习向知识应用的转变,大力提高学生终身学习的能力。南非这种突出学习者中心、结果本位的课程改革,为南非的课程理论发展、教育公平、人才培养质量等做出了有益的探索。 相似文献
13.
高中生物课程是高中阶段的重要学科之一,其具有知识点繁杂、内容抽象性强、理解难度大等特点,单纯的理论讲解很难达到理想的教学效果.启发式教学法是一种快速有效的教学方法,能够有效激发学生对生物课的兴趣,强化学生对生物知识的理解,进而有效提升生物课堂的教学效果.文章在教学实践的基础上,对启发式教学法在高中生物课堂中的应用难题、... 相似文献
14.
In order for students to truly understand science, we feel that they must be familiar with select subject matter and also understand how that subject matter knowledge was generated and justified through the process of inquiry. Here we describe a high school biology curriculum designed to give students opportunities to learn about genetic inquiry in part by providing them with authentic experiences doing inquiry in the discipline. Since a primary goal of practicing scientists is to construct explanatory models to account for natural phenomena, involving students in the construction of their own explanatory models provides a major emphasis in the classroom. The students work in groups structured like scientific communities to build, revise, and defend explanatory models for inheritance phenomena. The overall instructional goals include helping students understand the iterative nature of scientific inquiry, the tentativeness of specific knowledge claims (and why they should be considered tentative), and the degree to which scientists rely on empirical data as well as broader conceptual and metaphysical commitments to assess models and to direct future inquiries. 相似文献
15.
Active‐learning labs for two topics in high school biology were developed through the collaboration of high school teachers and university faculty and staff and were administered to 408 high school students in six classrooms. The content of instruction and testing was guided by State of Texas science objectives. Detailed teacher records describing daily classroom activities were used to operationalize two types of instruction: active learning, which used the labs; and traditional, which used the teaching resources ordinarily available to the teacher. Teacher records indicated that they used less independent work and fewer worksheets, and more collaborative and lab‐based activities, with active‐learning labs compared to traditional instruction. In‐class test data show that students gained significantly more content knowledge and knowledge of process skills using the labs compared to traditional instruction. Questionnaire data revealed that students perceived greater learning gains after completing the labs compared to covering the same content through traditional methods. An independent questionnaire administered to a larger sample of teachers who used the lab‐based curriculum indicated that they perceived changing their behaviors as intended by the student‐centered principles of the labs. The major implication of this study is that active‐learning–based laboratory units designed and developed collaboratively by high school teachers and university faculty, and then used by high school teachers in their classrooms, can lead to increased use of student‐centered instructional practices as well as enhanced content knowledge and process learning for students. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 960–979, 2007 相似文献
16.
分析赣南师范学院科学教育专业04、05、06级基础生物学课程开设现状,通过比较部分师范院校科学教育专业开设基础生物学课程的情况,以及对中学科学标准、中学生物学课程标准、高等学校本科生物科学专业规范教学内容的比较,对科学教育专业学生应掌握的生物学基本知识进行了分析,对科学教育专业开设的基础生物学课程进行了认真分析研究,初步构建适合科学教育专业特点的基础生物学的课程体系． 相似文献
17.
Use of First‐hand and Second‐hand Data in Science: Does data type influence classroom conversations?
In this paper, we examine how students discuss and interpret data and whether these actions vary depending on the type of data they analyse. More specifically, we are interested in whether students perform differently when analysing first‐hand data, which they collect themselves, compared with second‐hand data provided to them. Our data analysis focused on two classrooms using two different curriculum units, chemistry in Grade 7 and biology in Grade 8, collected during the 2002/03 school year from a Mid‐western urban middle school in the USA. We analysed classroom videotape associated with lessons in which students discussed first‐hand and second‐hand data both in small group settings and full class discussions. We found the two types of data offer different benefits and limitations, suggesting that both types of data are important for students to work with as they develop skills in scientific inquiry practices. We discuss the characteristics of classroom discussions around different data sources as well as implications for the design of curriculum materials, instructional environments, and student learning in science. 相似文献
18.
An Analysis of Teacher Discourse that Introduces Real Science Activities to High School Students 总被引：1，自引：0，他引：1
Most academic science educators encourage teachers to provide their students with access to more authentic science activities. What can and do teachers say to increase students’ interests in participating in opportunities to do real science? What are the discursive resources they draw on to introduce authentic science to students? The purpose of this ethnographic and discourse-analytic study is to investigate the ways in which the activities of scientists are discursively presented to high school students in a biology/career preparation course. Data sources were collected by means of observation, field notes, interviews, and videotaped lessons in an eleventh-grade biology/career preparation course. Drawing on discourse analysis, we investigate the discursive resources—or, more specifically and technically, the interpretative repertoires—teachers used to explain and promote opportunities to engage students in real science activities. Our analysis identifies and characterizes six types of interpretative repertoires: specialized, a-stereotypical, relevant, empirical, emotive, and rare-opportunity. To better understand the “big picture” of how these discursive resources are drawn on in the classroom, we also report on the frequencies of the repertoires in the discourse and the ways in which repertoires changed in the course of teacher-student interactions. The findings of this case study offer teachers and researchers with a better understanding of how specific forms of discourse—i.e., the repertoires—can serve as resources to enhance teacher-introduction of authentic science to students and provide students a bridge between school and authentic science. 相似文献
19.
在新课改背景下如何合理开发和利用生物课程资源是很有必要的。文章从充分利用教材资源、教师资源、本土资源、学生资源、音像资源、网络资源等六个方面进行了阐述,举例课程资源在初中生物教学中的有效利用一些策略,以便更好地促进教育教学,供大家参考。 相似文献
20.
在新课改模式下,高中生物教学思想和模式发生了极大转变。生物教师要站在更高视点,对课程资源进行创新和优化处理,以提升生物课程教学效率。文章对新课改背景下的高中生物教学策略进行论述,指出教师应运用信息技术开展教学,创建智慧生物课堂,设计导学案,提高生物实验课教学效率。 相似文献